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Aerospacesealing systems

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Aerospace Engineering Guide

1

Busak+ ShambanEdition April 2004

Contents

Sealing System Examples 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Seal Materials 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurelR Elastomer Materials 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aerospace Hydraulic Fluids 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Surface Finish (Recommendations) 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Surface Finish (Measurement Methods) 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Specifications 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FEA Analyses 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Quick Reference Guide 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selection Criteria for Aerospace Seals 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Dimensions per MIL-G-5514F and AS4716, Bore 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Dimensions per MIL-G-5514F and AS4716, Rod 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR VL SealR 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Plus SealRII 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Double DeltaRII 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR WedgpakR 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR HatsealRII 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR T-Seal 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR AQ-SealR5 (For use in MIL-Standard Grooves) 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR VarisealR 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Back-up Ring (BUR) 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seals manufactured to MIL-G-5514F (Rod and Bore Sizes Only)

TurconR Dual Piston Ring 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Glyd RingR - For use with MIL-G-5514F/AS4716 Rod/Bore 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR StepsealRK 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR Roto Glyd RingR - For use with MIL-G-5514F/AS4716 Rod/Bore 98. . . . . . . . . . . . . . . . . . . . . . . . .

TurconR VarilipR 100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seals for Boeing Gland Standard BACS11AA 102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Footseal II 103. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


2

Busak+ Shamban Edition April 2004

Selection of the Scraper Element 104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR DC Scraper Ring 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR ExcluderRDC, Series E 106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR ExcluderRDC 107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR VarisealRM2S Scraper 111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurciteR SlydringR/LuytexR SlydringR 114. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TurconR WedgpakR Face Seal 118. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Instructions 123. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quality Criteria 127. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Customer Approvals 129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Questionaire 131. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


3


Sealing System Examples

Typical Hydraulic Equipment using Shamban Systems

In each individual case the type of system should be selectedbased on criteria such as friction, leakage, and cost. In thefollowing examples we have mentioned the main features foreach system as a guideline; however, the section describingthe individual product should always be consulted to ensurethat all operational requirements are fulfilled.

Utility Actuator Systems: Rod Applications

For general purpose hydraulic actuators, Shambanoffers a variety of simple and reliable sealing systems:

TurconR

ExcluderRDCTurconR

WedgpakR

p

Figure 1 Standard Rod Sealing System

The WedgpakR and ExcluderRDC standard sealingsystem (Fig. 1) is a simple and effective solution thatcombines long life with good leakage control. TheWedgpakR is an easy to install, foolproof design, offeringexcellent leakage control.

The ExcluderRDC is superior to the older garter springenergized scraper because it utilizes an uncut scraper ringand is sealed off by an O-Ring on the static side.

TurconR

ExcluderRDCTurconR

Grooved Plus SealRII

p

Figure 2 Alternative System I

TheGrooved Plus SealRII (Fig. 2) can be substituted for theWedgpakR in cases where an elastomeric contact seal isnot suitable due to high speeds or long rest periods for theactuator. This seal has nearly the same leakage control,but since it is a slipper seal, speeds of up to 15 m/s (49ft/s) are acceptable and adhesion is eliminated. Thegrooves on the dynamic seal surface provide pocketswhere the hydraulic fluid can accumulate and lubricatethe seal, therefore increasing seal life.

TurconR

ExcluderRDC

p

TurconR

VL SealR

Figure 3 Alternative System II

VL SealR (Fig. 3) is a good alternative for applicationswhere a dry rod is critical (and typical slipper seals allowtoo much leakage). VL SealR is designed to pump anyleakage back into the system. A double acting scraper suchas the ExcluderRDC is used in order to prevent leakage outof the system at the rod end. The VL SealR /ExcluderRDCsystem has the advantage of being extremely leaktight witha surface finish at max. Ra 0.2 µm.

Note. Recommendations for Groove Distance, seefigure 123 page 104.


4


Utility Actuator Systems: Piston Applications

Piston systems are typically simpler than rod systems.They must be of symetrical design to cope with thechanging direction of the fluid pressure.

TurconR Dual Piston Ring

p p

Figure 4 TurconR Dual Piston Ring

Where controlled leakage is permissible, the Dual PistonRing offers a good, reliable, low friction seal in a narrowgroove width.

p p

TurconR


Figure 5 TurconR Grooved Plus SealRII

Where leakage is critical, the Grooved Plus SealRII iswidely used and has excellent wear characteristics.

TurconR Glyd RingR

p p

Figure 6 TurconR Glyd RingR

The TurconR Glyd RingR is a simple, reliable and cost-effective slipper seal that is worthwhile considering as analternative to the Plus SealRII if MIL-G-5514F glanddesign is not mandatory.

p

TurconR WedgpakR

p

Figure 7 TurconR WedgpakR

The Wedgpak is a ”zero” leakage elastomer contact sealwith outstanding dynamic performance and easyinstallation.


5


Advanced Actuator Systems:Primary Flight ControlsRod Applications with Dual Unvented Seals

With the increased use of fly-by-wire technology, mostprimary flight controls use a dual unvented sealing system inorder to meet the high performance and long liferequirement.

TurconR

ExcluderRDC

p

TurconR

VL SealR

Figure 8 High Frequency System

The tandem VL SealR combines the low frictioncharacteristics of the slipper seal with a leaktightperformance. The dual edge ExcluderRDC closes theleakage by low pressure and static stand-by operations.

Although the HatsealRII and the WedgpakR have beenused for many years for high frequency systems, thetandemVL SealR system provides increased reliability andcan survive high frequency dither stroke applications withincreased service life.

Rod Applications with Pressure Relieving Seals

In some cases an interstage pressure build-up can beexperienced in a dual unvented sealing system. The followingfactors are contributing to this phenomenon:

- Stroke frequency- Stroke length- Pressure variation- Extrusion gap- Surface finish- Oil viscosity- TemperatureThe following systems are designed to allow the interstagepressure build-up to be relieved back into the system , whenthe system pressure drops or in the case of the StepsealRKduring the retract stroke of the rod.

TurconR

ExcluderRDC

p

TurconR

Plus SealRPRTurconR

WedgpakR

Figure 9 System with Pressure Relieving Plus SealRPR

The Plus SealRPR is capable of relieving any interstagepressure.

The Plus SealRPR is easily fitted into existing grooves as aretrofit if a pressure build-up is noticed, requires a carefulinstallation.

TurconR

VL SealRTurconR

ExcluderRDC

p

TurconR

WedgpakR

Figure 10 System with Pressure Relieving VL SealR

Pressure relieving can also be achieved by using theVL SealR as a primary seal. The sealing lip will lift if theback pressure exceeds approximately 10 bars (145 psi).

VL SealR/WedgpakR configuration offers the optimumpressure relieving seal system, due to the VL SealR design.Pressure trapped in between the two seals is preventedfrom leaking through by the elastomer contact of theWedgpakR and the slight tilt of the VL SealR caused bybackpressure, allowing the oil back into the circuit.


6


Advanced Actuator Systems, i.e.:Primary Flight ControlsPiston Applications

The piston seals in a flight control are working under lesssevere conditions than the rod seals because they are welllubricated by the oil.


p p

Figure 11 TurconR Dual Piston Ring

Where controlled leakage is acceptable, the Dual PistonRing offers a good reliable low friction solution in a narrowgroove with minimum hysteresis.

p p

TurconR



Where leakage is critical, the Grooved Plus SealRII iswidely used and has excellent wear characteristics. Inflight controls we recommend Back-up Rings with thePlus SealRII.


7


Landing Gear Shock Struts

TurconR

ExcluderRDC

TurconR

HatsealRII

p

TurciteR

SlydringR

Figure 13 Small Diameter Shock Strut

For smaller diameter shock struts, the HatsealRII/ExcluderRDC has proven to be a cost effective solutiondue to the long service life.

p

TurconR

ExcluderRDCTurconR

HatsealRIITurciteR

SlydringRTurconR

WedgpakRLuytexR

SlydringRLuytexR

SlydringR

Figure 14 Large Landing Gear with Installed Spare Seal

For medium sized landing gear, it is an advantage to usea tandem sealing system with by-pass around the inboardseal. This means that initially the pressure drop is over theoutboard seal, and the inboard seal runs in a lubricatedenvironment. When a leakage is detected, the by-passcan be closed and operations continue on the inboardseal until the next scheduled overhaul.

On landing gears where severe shock strut deflection canbe expected, the use of SlydringR is recommended toavoid scoring caused by metal-to-metal contact of themoving parts.

p

TurconR

ExcluderRDCTurciteR

SlydringRTurconR DeltaPlus SealRII

LuytexR

SlydringRLuytexR

SlydringR

Figure 15 Large Diameter Shock Struts

For large diameter landing gear where heavydeformations and high pressure shocks may occur, it isessential to use a slipper seal without elastomer contact to

provide the necessary service life. The use of LuytexR

SlydringR are critical to good performance becausemetal-to-metal contact is avoided.


8


TurconR

VL SealR

p

TurconR

ExcluderRDCLuytexR

SlydringRTurciteR

SlydringR

TurconR

HatsealR

Figure 16 Future Landing Gear Sealing System

Tandem sealing systems represent the ultimate sealingsolution for landing gear, with the new Series 600 crosssection, and there is room for it. The TurconR VL SealR asthe primary seal to take up the peak and pulsationpressure, protecting the TurconR HatsealRII as theleaktight performer with the lip. Both seal designs areconsidered the superior strut seals and the combinationof the seal designs will only improve the performance.

Shamban seals and bearings are among othersused for the following Landing Gearapplications:

A320, A380/340B737, B747, B757 and B767,ATP, F-5, Eurofighter, J31, HS748, Spitfire, EMB 145, PC7and PC9.

Rotary Vane Sealing SystemA rotary vane sealing system consists of a rectangularcap seal with a centerplate, and an O-Ring to energizeand seal between the chambers. The corner seal can bedesigned in various shapes to control the leakpathbetween chambers and rod. The TurconR WedgpakR

is positioned as rotary seal with a small elastomercontact to prevent leakage even at low pressure. Finally

the ExcluderRDC prevents contamination from enteringthe system. If space is available, a SlydringR isrecommended between the rod seal and theExcluderRDC.

Please consult your Shamban sales engineer for furtherrecommendations.

Vane SealCorner Seal

TurconR

WedgpakR

TurconR

ExcluderR DC,Series E

A

ASection A - A

Figure 17 Rotary Actuator Sealing System


9


Accumulators

The TurconR AQ-SealR5 is a leak-tight, long-lasting piston seal. The use of SlydringR is recommended to avoid leakageresulting from piston misalignment with the bore.

TurconR

AQ-SealR5

Oil N 2

TurciteR

SlydringR

Figure 18 Accumulator Sealing Systems. Application Example: Sikorsky H60

Spool Valves

Reduced gland width can be achieved by using a TurconR Glyd RingR internally, and a TurconR WedgpakR withelastomer contact to prevent external leakage.

TurconR

Glyd RingRTurconR

WedgpakR

Figure 19 Spool Valve Sealing Systems. Application Example: IPTN


10


BrakesBrake pistons equipped with a spring energized TurconR

VarisealRH to take pressure and temperature variation,combined with the tight and efficientTurconRExcluderRDC, Series E, have proven to be veryreliable. The advantage of using VarisealR (springenergized TurconR jackets) instead of elastomer contactor energized seals is that brake systems often exceed the

temperature capability of the elastomer. Springenergized seals can go from -100_C/-148_F to+260_C/500_F, and metallic springs address most fluidcompatility problems.

The Spring Liner protects the brake housing from wearand abrasion from the spring.

p

TurconR VarisealRH TurconR ExcluderRDC

TurconR Concave Ring

TurconR Spring Liner

p

Figure 20 Brake Sealing System. Application Example: F-16 A/B


11


TurconR Seal Materials

TurconR materials are carefully formulated proprietaryblends and are based on premium-grade PTFEfluoropolymer resins. Fillers are added that improve sealmaterial properties. Fillers improve wear extrusion,resistance and high-temperature properties of TurconR.The key features of TurconR seal materials are as follows:

Low Friction

TurconRmaterials exhibit the lowest coefficient of frictionof any known solid, as low as 0.04 unlubricated onpolished steel. The friction values obtained underlubricated conditions will be smaller. A unique propertyis the very low static coefficient of friction of TurconR

which results in extremely low breakout friction. TurconR

materials do not adhere to their mating surfaces,therefore eliminating any worries about stick-slip indynamic applications.

Chemical Compatibility

TurconR materials are chemically inert in essentially allindustrial chemicals and solvents, even at elevatedtemperatures and pressures. A single TurconR materialcan handle an extremely wide range of solvents, acids, orother corrosive media.

Temperature Range

TurconR materials can operate at service temperaturesfrom -196_C /320_F up to 260_C /500_F, (even furtherunder special conditions) but it is necessary to limit otherworking conditions, such as speed and pressure, whenthe temperature reaches the limit.

Temperature Cycling

In elastomeric seals, temperature cycling causesmaterial degradation leading to compression-set of theelastomer. TurconRmaterial properties, however, are notaltered by cycling temperatures. TurconR also does notcontain plasticizers or any other ingredients which coulddegrade at temperatures below 300_C (572_F).

High Surface Speed

TurconR materials generate far less heat than othermaterials, such as elastomer, polyurethane, etc. Ingeneral, surface speed can go up to 15 m/s, dependingupon seal design and working conditions. Speedexceeding 20 m/s has been achieved under specialconditions.

Aging

TurconR properties do not significantly change overtime. TurconR does not age and will not embrittle ordegrade when exposed to severe-weatheringconditions of heat, light, water, salt spray, etc. This isuseful when seals might sit idle for years and still berequired to perform with complete reliability.

Resilience

TurconRmaterials may experience ”cold flow” or creepunder continued thermal or mechanical stress becausethey do not have the resilience of elastomers.Consequently, TurconR materials require anexternal-loading device such as a metal spring or anelastomer. This is required to provide the radial forcewhich compensates for seal wear, cold flow, and thenormal variations in gland dimensions due totolerances or eccentricity.

Wear Resistance

TurconR materials are formulated to enhance wear lifeat high speeds, pressures, and temperatures throughthe addition of fillers such as carbon fiber, glass fiber,molybdenum disulphide and others. TurconRmaterialsachieve wear values that exceed the demands of manydifficult sealing environments.

Radiation

TurconR is not recommended for an accumulatedradiation dose above 7 x 102 Gy (7 x 104 rad). The largeflourine molecules in the PTFE chain make good targetsfor radioactive particles. The molecular-chain structure isdamaged by scissure when exposed to radiation, resultingin lowered tensile strength and eventual disintegration. Inhigh-radiation service, other fluoropolymers such as EFTEand PCTFE or ZurconR materials are recommended.

Polytetrafluoroethylene (PTFE) Properties

Since TurconRmaterials are based on premium-grade PTFEresins, the general properties of PTFE may be of furtherinterest. PTFE has excellent electric properties such as a lowdielectric constant and a very high dieletric strength, even atelevated temperatures. PTFE will not sustain fire in pureoxygen. Virgin PTFE is physiologically inert.

The water absorption of PTFE is 0.01%. PTFE does notabsorb fluid to a level worth mentioning other thanfluorinated-cooling media (e.g. Freon). Fluorinated fluidscan cause a reversible weight increase of approximately5% accompanied by dimensional increases ofapproximately 1%.


12


Material Data

All TurconRMaterials are made of a high grade composition of Polytetrafluoroethylene (PTFE) resin and processed in anisostatic molding process.The following list includes the standard TurconR materials, but a large number of other materials are available and willbe specified when required by the working conditions. The materials are tested at 23_C (73.4_F)

Table I TurconR Materials

MaterialCode

Description and

Tensile StrengthElonga-tion atbreak

SpecificGravity Hardness

TurconR

Description andrecommended use Color ASTM

D4894[MPa]

ASTMD

4894[psi]

ASTMD

4894[%]

ASTMD792

[g/cm3]

ASTMD

2240[Shore D]

T01Virgin, exceeding MIL-R-8791Profile: Clean system, low friction and pressureSurface: Steel and chrome

Whiteto

Off-white42.3 6130 378 2.16 58

T05

TurconR.Profile: All systems, low friction, medium lifetime andpressureSurface: Steel and chrome

Turquoise 39.2 5682 392 2.17 57

T10*Additive: Carbon and graphiteProfile: Dry system, poor lubrication. Large extrusion gapSurface: Steel, chrome

Black 21.9 3180 183 2.05 64

T19Additive: Mineral fibers and MoS2Profile: High pressure and long wear lifeSurface: Steel, chrome and ceramic

Gray 24.2 3506 226 2.30 63

T25Additive: Glass fibers and MoS2Profile: Rotary applicationSurface: Hardened steel, chrome and ceramic

Gray 31.5 4562 286 2.23 59

T29Additive: Carbon fibers high filledProfile: Long wearlife and large extrusion gapSurface: Steel and chrome

Gray 22.1 3208 217 2.01 61

T40Additive: Carbon fibers medium filledProfile: Long wearlifeSurface: Aluminum, Steel and chrome

Gray 24.7 3579 241 2.06 60

T47Additive: Bronze medium filledProfile: Bearing and SlydringRSurface: Steel and chrome

Lightto

dark brown27.6 4000 250 3.09 60

T49Additive: Bronze medium filled acid treatedProfile: Extrusion resistantSurface: Hardened steel and chrome

Gray 27.6 4000 250 3.10 63

T99Additive: MoS2Profile: Low friction, medium pressure, long seal lifeSurface: Steel, chrome and anodized aluminum

Gray 37.2 5385 347 2.22 58

Note ! The values in Table I are nominals, intended for engineering reference only. These values are not to be usedas a specification requirement. Specification values are available upon request.

* TurconR T11, used in North America is equivalent to TurconR T10.


13


Table II ZurconR Materials

MaterialCode

D i i C l

Tensile Strength Elongationat break

SpecificGravity Hardness

R

Description Color ASTM D 638 ASTM D 638 ASTM D 792 ASTM D 785ZurconR [MPa] [psi] [%] [g/cm3] [Shore R]

Z48Proprietary PolyesterLeaktight performanceSteel and chrome (Formerly ZurconR 448)

Uniformblack 44.1 6.400 550 1.20 -

Z60Polyamide and MoS2Spec. T-Seal and corner reinforcementSteel and chrome (Formerly HiModR 60)

Gray 82.7 12.000 50 1.16 120

ZurconRASTMD 1457[MPa]

ASTMD 1457[psi]

ASTM D 1457[%]

ASTM D 621(Deformation@ 2.000 psi73_F/24 hrs)

ASTM D 785[M Scale]

Z43

High modulus thermo plastics + PTFE + CarbonBearing, StakbakR and corner reinforcementSteel, chrome and ceramic(Formerly HiModR 552)

Uniformblack 81.0 11.750 25 0.08% 95

Note: The testing of tensile properties are based on the microtensile specimen per ASTMD 1457/D 4894, pulled at 2 inches per minute with an initialjaw separation at 0.875.005 inches. Tensile properties are determined in accordance with the procedures described in ASTM D 638.

Note ! The values in Table II are nominals, intended for engineering references only. These values are not to be usedas a specification requirement. Specified values can only be obtained from each batch.


14


TurelR Elastomer Materials

Many of the Shamban seal designs are composite sealswith an elastomer element as an integral part of the seal.For this reason it is very important that we are in controlof such important seal design parameters as elastomerswell, shrinkage during molding, compression set,compatibility and tolerances.

Through extensive testing in our own test laboratory wemake sure that our materials are manufactured to ourspecifications. A number of the materials have also beenapproved for a QPL as part of a US Government supportprogram.

Selection of elastomer material for a hydraulic fluid is acritical issue since the elastomer materials are moresensitive to fluids than other materials. Chemicalreactions and physical behavior can be very damaging ifthe wrong material is selected.

Even though the specifications ensure compatability,different behaviors can result due to the number and typesof additives used in the oil. It may be necessary to conducta soak test at elevated temperature in order to verify theperformance for critical applications. Contact yourShamban sales engineer for assistance.

Following points are important when designing the sealsystem:

Chemical Compatibility

Compability with the most common oil types can be foundin Table IV, page 16. For other medias please contact yourShamban sales engineer. See also note in section below.

Nitrile MIL-P-83461 versus MIL-P-25732C

Due to the chemical composition of the nitriles, it is veryimportant to separate and use them where the functionalbehaviors are optimized.

Compression Set(Static)

Wearlife(Dynamic)

MIL-P-83461(peroxide cured) + -

MIL-P-25732C(sulphur cured) - +

This indicates that dynamic elastomer contact seal shouldbe MIL-P-25732C in order to optimize seal liferequirement.

Temperature Range

Most TurelR materials can be used in MIL-G-5514F typeII systems (-54_C to +135_C / -65_F to -275_F). The lowtemperature dynamic cycling limits vary according toelastomer type.

Shamban offers other TurelR elastomer compounds whichexpand this temperature range. Please refer to Table III onpage 15. The use of spring energized VarisealR canexpand the temperature range even further.

Temperature Cycling

The effect of temperature cycling on elastomeric sealsresults in compression set which means that the elastomermaterial loses its elasticity over time. For TurelRmaterials,this effect is kept to an acceptable minimum if they arewithin the indicated temperatures.

Cold Temperatures

Elastomer materials contract approximately 10 timesmore than steel in cold environments. The materialbecomes stiffer, loses its flexibility and when passing thelower limit it reaches the glass transition stage whereby itbecomes extremely brittle. Physical properties will recoverwhen temperatures go up again. (Increased squeeze canimprove the performance.)

Hot Temperatures

Elastomer materials soften and loose its physicalproperties when passing the upper temperature limit.Physical properties will not recover and it will take apermanent compression set. (Compression set varies withelastomer type).

Surface Speed

The speed of the dynamic surface in contact with anelastomer contact seal should be kept below 3 m/s (9.8 ft/s)to avoid damage to the elastomer.

Aging

The maximum recommended storage time is shown inTable III. This is only valid if the elastomer is stored undercontrolled conditions in light and airtight packaging.


15


Table III TurelR Elastomer Materials

MaterialCode Base Polymer

TemperatureRange Hardness

(Shore A) Fluid Referencespecification

Recommendedshelf life

New OldBase Polymer Range

_C (_F) (Shore A) Fluid specification shelf life

NK BAK Nitrile(NBR)

-54_C to +135_C(-65_F to +275_F) 75 MIL-H-5606 AMS-P-25732

(on QPL) 10 years

NE BAE Nitrile(NBR)

-54_C to +135_C(-65_F to +275_F) 75 MIL-H-83282 AMS-P-83461

(on QPL) 10 years

NG G Nitrile(NBR)

-54_C to +135_C(-65_F to +275_F) 75 MIL-H-5606

MIL-H-83282 AMS-P-25732 10 years

EH H Ethylene Propylene(EP)

-54_C to +149_C(-65_F to +300_F) 80 Phosphate Ester NAS 1613

rev. 2 class 1 10 years

EP EP Ethylene Propylene(EP)

-54_C to +149_C(-65_F to +300_F) 80 Phosphate Ester NAS 1613

rev. 4 (on QPL) 10 years

FT T Fluorocarbon(FKM)

-34_C to +260_C(-30_F to +500_F) 80 MIL-L-7808

MIL-L-23699 AMS-R-834851) 20 years

FL FAL Fluorocarbon(FKM)

-23_C to +204_C(-10_F to +400_F) 90 MIL-L-7808

MIL-L-23699 AMS-7259 20 years

FK FAK Fluorocarbon(FKM)

-23_C to +204_C(-10_F to +400_F) 75 MIL-L-7808

MIL-L-23699 AMS-7276 20 years

LF F Fluorosilicone(FVMQ)

-73_C to +177_C(-100_F to +350_F) 70 Jet fuel AMS-R-259881) 10 years

LA LEA Fluorosilicone(FVMQ)

-57_C to +177_C(-70_F to +350_F) 80 Jet fuel AMS-R-259881) 10 years

1)Meets physical property requirements of applicable specification.Testing to the specification on a lot-by-lot basis available on request at additional cost.Other materials available upon request. Contact your Shamban sales engineer.


16


Aerospace Hydraulic Fluids

Table IV Common Oil Types

Specification Trade name TemperatureRange Type

MostCompatibleElastomer

MIL-H-5606(Nato code H-515) Red oil -54_C to +135_C

-65_F to +275_F

Petroleum based hydraulic oil. Primary military fluid. NBR, Sulphurcured, FKM,FVMQ

MIL-H-83282C(Nato code H-537)

Synth.Red oil

-40_C to +205_C-40_F to +401_F

Synthetic hydrocarbon based hydraulic oil. The fluid hasimproved fire resistance (fire propagation) and shear stability, butreduced low temperature capability.

NBR, peroxidecured, FKM,FVMQ

MIL-PRF-87257(Nato code H-538)

Synth.Red oil

-54_C to +135_C-65_F to +275_F

Synthetic hydrocarbon based hydraulic oil. Similar to above butimproved cold temperature capability

NBR, FKM,FVMQ

AS 1241A-Cl1 Phosphate -54_C to +135_C Phosphate Ester fluid. No fire propagation.Cl1 i l d i fl id Cl2 i hi h d i

EPDMAS 1241A Cl1AS 1241A-Cl2

PhosphateEster

54 C to +135 C-65_F to +275_F

osp a e s e u d No e p opaga oCl1 is low density fluid, Cl2 is high density.

M

MIL-L-7808 Engine lub. oilNominal

-54_C to +150_C-65_F to +300_F

Synthetic oil-ester based lubricant oil(Organic acid ester based)

FKM

MIL-L-23699C Engine lub. oilNominal

-40_C to +204_C-40_F to +400_F

Synthetic based lubricant oil(Organic acid ester based)

FKM

Viscosities of Typical Fluids vs. Temperature

-60 -40 -20 0 20 40 60 80 100 150 200 250 300 350Temperature _F

0.6

0.70.80.91.0

1.5

2.0

3.0

4.0

6.08.010.0

20

50

100200500

1.0002.0005.00010.000

KinemaricViscosity

-Centistokes

Figure 21


17


Surface Finish (Recommendations)

Surface Finish Recommendations

Current industry standards for surface finish range from0.2-0.4 μm Ra (8-16 μin) per Mil-G-5514 to 0.25-0.50μm Ra (10-20 μin) for general applications. Past industryexperience suggested that surfaces smoother than 0.2 μmRa (8 μin) did not allow for ample lubrication of seals,while surfaces rougher than 0.4-0.5 μm Ra (16-20 μin)prematurely wore seals, resulting in short life. With thesurface measuring and finishing equipment availabletoday, surface finishes smoother than the currentstandards have shown to be suitable and can actuallyimprove overall seal performance.

Investigations into surface finish measurement equipmentand capabilities, along with finishing methods, haveresulted in functional seal testing being performed todetermine and verify surface finish recommendations forimproved seal performance. The followingrecommendations are a guide to defining the propersurface finish for dynamic sealing applications:

Ra = 0.1 - 0.2 μm (4 - 8 μin)

Rz = 1.0 μm maximum (40 μin)

Rp = 0.6 μm maximum (24 μin)

tp (Mr) = 50-70% @ depth p = .25Rzrelative to a ref. line c = 5% tp

These general recommendations apply to all types ofsealing surface finishes including plated or coatedsurfaces and bare, hardened metal surfaces.

Additionally, the surface profile should have a”plateaued”appearance as the illustration of Figure 29 shows. Asurface with a high concentration andmagnitude of peakshas been shown to cause excessive seal wear. A surfacerelatively void of peaks but including valleys forlubrication retention is more suitable for sealingapplications.

Direction or ”Lay” of Finish

Each of the many different methods used to obtain aspecific surface finish - turning, grinding honing,ballizing, polishing, etc. - produces a characteristicdirection or ”lay” to the surface. This factor alone can havean effect on sealing performance and wear patterns incertain applications. To obtain the best seal performance,avoid finishing methods which promote the formation ofleak-paths in your application. For example, avoid astrongly axial lay in a reciprocating rod-seal application,or a definite spiral pattern on the shaft in a rotaryapplication. Consult your Shamban sales engineer forfurther information.

Mating Surface Hardness

The hardness of a mating surface affects sealperformance in several ways. A harder material improveswear life by resisting the tendency of seals to damage themating-surface finish. If thematingmaterial is too soft, theseal will burnish or damage the surface. Harder matingsurfaces also allow the user to specify certain tougher,longer-lasting TurconR seal materials (such as Carbonfiber filled T29) which would not be recommended onsofter hardware surfaces. Harder mating surfaces have atendency to lower the running friction of a seal.

A seal will polish its mating surface, especially if it is asofter metal. For example, a reciprocating rod made ofstainless steel with a hardness of 28 to 30 Rockwell C anda finish of Ra 0.6 µmwill generally be polished by the sealto a finish of Ra 0.3 µm or better over a short time. Sealfriction andwear will then decrease accordingly. Materialsthat are harder than 44 Rockwell C do not polish as easily.The abrasive nature of a rough finish can cause excessiveseal wear during the early burn-in period. Therefore, theharder the mating surface, the more important it is to startwith a smooth finish.

Substrates

In most applications an unplated, uncoated shaft is morethan adequate. Typical mating-surface materials arelisted in the Table IX, page 26 and Table X, page 27. Thesematerials (and others not listed) can also act as substratesfor platings or coatings to achieve higher hardness values.An important property to consider in such cases is theability of the substrate to support the plating. For example,when a high-pressure load is exerted on a seal runningagainst a hard-chrome plating supported by a softsubstrate (such as 300 series stainless steel) the platingmay peel or crack and then abrade the seal. A bettersubstrate would be stainless steel Type 440C (hardened to44 Rockwell C) or an alloy steel such as 4340 in thefully-hardened condition.

Platings and Coatings

Seal designs run well against unplated surfaces atmoderate speeds and pressures. In high-speed rotary orhigh-pressure reciprocating service, harder surfaces arepreferred. Several examples of platings and coatings (nota complete list) are given on page 27.

For further advice on platings and coatings, please consultyour Shamban sales engineer.


18


Seal Material

Seal material selection affects mating-surface hardnessrequirements. When an application requires the longestpossible wear life under moderate to severe conditions,the seal material should be one of the harder, highly-filledTurconR blends. For example, TurconR T29 is verywear-resistant but contains carbon fibers that can abradesoft mating surfaces. These materials should only be runagainst materials with hardness values of 45 to 70+Rockwell C.

Supporting Test Data

Functional dynamic seal testing was conducted underdifferent evaluation programs that were designed to studysurface finish effects on seal performance. Various typesof surfaces (coatings) were evaluated throughout thesetests. Not all of the tests were performed utilizing the sameconditions or test seals. Some of the test results andobserved trends relative to surface finish effects on sealperformance are reported here as supporting data.

Functional seal testing utilizing commercially availableinduction-hardened, chrome-plated (IHCP) piston rodmaterial meeting the 0.2-0.4 μm Ra finish requirementhas typically shown much variation in seal performanceresults. Analyzing test results, the test parameters,equipment and methods concluded that the variationswere most likely due to differences in the surface texturesof the test rods.

Further testing using IHCP rods finished to the extremes ofthe 0.2-0.4 Ra requirement confirmed this suspicion. Atest matrix was conducted whereby four combinations offinishes were evaluated: (Ra in μm)

- 0.2 Ra ground

- 0.2 Ra ground, polished

- 0.4 Ra ground

- 0.4 Ra ground, polished

The results of this study were somewhat surprising anduncovered some effects that surface finish can have onseal performance. In general, the polished surfacesperformed better with respect to seal leakage and wear,which was expected. But the polished 0.4 Ra surfacesallowed better seal performance than the 0.2 Ra ground;this result revealed the need for more in-depth studies ofthe effects of surface texture and type. Not only was the0.2-0.4 μm roughness average finish callout inadequate,but the type of finish (ground only vs. ground andpolished) was also significant to seal performance.

A test program was conducted to evaluate proposedimprovements to a standard industrial sealing system fora reciprocating application. A comparison of different

surface finishes was part of this study. The test rods werenot plated; an alloy steel hardened to Rc 36-40 was thetest rodmaterial. For one of the tests, amaximum Rp value(peak height) was set for the test rod in addition to the Racallout. The wear of the primary seal element wasmeasured after 1 million cycles. The seal that ran on themore tightly-controlled surface finish showed a significantadvantage with respect to wear as Figure 22 illustrates.Leakage performance was identical between the two tests.

0

1

2

3

4

Ave.SealRingweightloss(%)

0.72

3.75

0.2-0.3 Ra0.75 Rp Max

0.2 - 0.4 Ra

Figure 22 Seal Wear Comparison

A seal performance evaluation was conducted comparingstandard hard-chrome plate to electroless nickel andtungsten carbide coatings. These coatings were applied toa base material of C1045 steel, induction hardened to40-50 Rc. Both PTFE-contact (slipper seal) andelastomer-contact seals were evaluated under thefollowing test conditions: (Ra in μm)

Pressure : 3000 psi constant

Stroke : 3 inches

Stroke Rate : 1 Hz

Fluid : Mil-H-83282

Duration : 300.000 cycles(TTD 1.8 million inches)

Temperature: 121_C (250 _F)

Test rods were prepared according to the followingdescriptions:

0.15-0.30 Ra standard hard-chrome

0.15-0.30 Ra standard electroless nickel

0.05-0.10 Ra superfinished electroless nickel

0.05-0.10 Ra superfinished tungsten carbide


19


Leakage and wear were the two performancecharacteristics measured for all seals tested. Figure 23shows average leakage data for the TurconR-contact sealtests. Figure 24 shows average seal ringwear data for theTurconR-contact seal tests.

0

50

100

150

200

Ave.Totalleakage(grams)

8.5

173

0.05-0.10 RaSuperfinishedTungstenCarbide

14.9

112

0.05-0.10 RaSuperfinishedElectrolessNickel

0.15-0.30 RaStandardElectrolessNickel

0.15-0.30 RaStandard

Hard-Chrome

Figure 23 TurconR-contact Seal Leakage

0

1

2

3

4


0.1

3


0.2

1.2




Hard-Chrome

Figure 24 TurconR-contact Seal Wear

As can be seen from the graphs, significant improvementsin TurconR-contact (slipper) seal performance can begained through the use of advanced coatings and surfacefinish specifications.

Figures 25 and 26 show the Ieakage and wear results ofthe elastomer-contact seal tests.

0

10

20

30

40

5.1 5.5


2.7

8.3




Hard-Chrome


Figure 25 Elastomer-contact Seal Leakage

0

5

10

15

20

25


3

21


23




Hard-Chrome

19

Figure 26 Elastomer-contact Seal Wear


20


In comparison to the TurconR-contact seal performancedata, the elastomer-contact seal performance gains arenot as significant. This is mostIy attributed to basic sealconfiguration and functional differences between the twotypes of seals.

Aluminum is occasionally used for cylinder barrels whereweight is a major concern or the application is relativelylight duty, as in pneumatics. For increased corrosionprotection and wear resistance, aluminum alloys areusually hard-anodized. An evaluation was performedwhere hard-anodized aluminum was compared totungsten carbide coated aluminum. Both TurconR-contactand elastomer contact seals were tested to the followingparameters:

Pressure : 3000 psi constant

Stroke : 3 inches

Stroke Rate : 1 Hz

Fluid : Mil-H-83282

Duration : 300.00 cycles(1.8 million inches)

Temperature: 121_C (250 _F)

Leakage and wear were measured for all test samples.Figure 27 shows average leakage data; Figure 28 showsaverage seal ring wear data.

0

50

100

150

200


17.8

166


0.15-0.30 RaHard

Anodized

Figure 27 TurconR-contact Seal Leakage

0

2

4

6

8

10

12


0.3

10.5


0.15-0.30 RaHard

Anodized

Figure 28 TurconR-contact Seal Wear

Again, significant improvements in seal performancewere observed between the different surfaces.

Throughout these supporting data, seal performancegains were demonstrated through the use of surface finishtechnology and advanced coatings. The exactcontributions from either the coatings or actual surfacefinish improvements to the enhanced seal performanceswere not quantified. Regardless, significant performancegains, especially in the case of the TurconR-contact seals,were shown as a result of improved surface quality.

Conclusion

Surface finish quality is directly related to dynamic sealperformance. Properly defining, measuring andcontrolling surface finish quality is critical to the functionalreliability and service life of a seal. Ra alone is not anadequate description of a sealing surface, however, caremust be taken to prevent over-specifying surface finishrequirements.

Many different types of surfaces are suitable for sealingapplications as well as methods and equipment used toobtain satisfactory surface finishes. Advanced coatingsand finishes, typically investigated as replacements tochrome plating, have demonstrated good performancegains with respect to dynamic sealing in hydraulicapplications.


21


Surface Finish (Measurement Methods)

Ra - Arithmetic Average Roughness

Roughness averages are the most commonly usedparameters because they provide a simple value foraccept/reject decisions. Arithmetic average roughness, or Ra,is the arithmetic average height of roughness-componentirregularities (peak heights and valleys) from the mean line,measured within the sampling length, L. See figure 29.

The measurements are taken as the fine point of the styluson a profilometer which traverses the sampling length onthe surface being measured.

Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8

RqRa

Y = individual measured peak height

L

Valley

Peak

Mean line

Ra= 1LL0

|y(x)|dx

Rq= 1LL0

Yz(x)dxn

XÛ

Figure 29 Surface Finish - Ra Versus Rq

Rq - Geometric Average Roughness

Rq is the current term for what was formerly calledroot-mean-square or RMS. Rq is more sensitive tooccasional highs and lows, making it a valuablecomplement to Ra. Rq is the geometric average height ofroughness-component irregularities from the mean linemeasured within the sampling length, L. Compare to Ra inTable V.

The main difference in the two scales is that Rq amplifiesoccasional high or low readings, while Ra simply averagesthem. For a given surface, therefore, the Rq value will behigher than the Ra value (by approximately 11%). That is,a surface finish that measures Rq 0.5 µm is equivalent toapproximately Ra 0.45 µm.

Table V Surface Finish Conversion Table

Ra, AA, CLA Rq or RMS German-English(µin.)

Metric(µm)

English(µin.)

German-SwissNorm1)

0.91.01.82.03.64.05.47.28.010.814.416.028.832.056.863.0

0.020.030.050.050.090.100.140.180.200.280.370.410.730.811.441.60

1.01.12.02.24.04.46.08.08.9

12.016.017.832.035.563.069.9

N1

N2

N3

N4

N5

N6

N7

Ra : Arithmeric average roughnessAA : Arithmeric averageCLA : Center Line AverageRq : Geometric average roughnessRMS : Root-mean-square1) The German-Swiss Norm is a series of roughness-grade numbers

used to avoid confusion with numerical values of other types.

Improved Measurement Methods

The Ra measurement does not give a true picture of thereal surface profile. The finish process plays a veryimportant role in the outcome. In particular, the openprofile ”Peak Structure” can seriously affect sealperformance, as its jagged structure can cut and nick theseal surface. On the other hand the closed profile form”valley structure”, gives improved seal performance,because the valleys retain fluid and lubricate the runningseal surface. Please see Table VI.

Table VI Ra Comparison

Surface Profile Ra

0.2

0.2

Even with identical Ra values, the resulting sealperformance will be very different.


22


An improved surface measurement method is described in the new ISO 13565-1 / -2 / -3, including the peak, valley andmaterial ratios as described below.

RPK

RKRVK

Mr1 Mr20 20 40 60 80 100

Equivalentstraight line

Material ratio Mr

%

Figure 30 Abbot Curve

Rk (Core Roughness)The core roughness depth is the depth of the roughnesscore profile.

Mr (Material Ratio)

Mr1 in %The material portion Mr1 is determined by the intersectingline which separates the protruding peaks from theroughness core profile.

Mr2 in %The material portion Mr2 is determined by the intersectingline which separates the valleys from the roughness coreprofile.

Rpk (Reduced peak height)The reduced peak height Rpk is the average height of theprotruding peaks above the roughness core profile.

Rvk (Reduced valley depth)The reduced valley depth Rvk is the average depth of theprofile valleys projecting through the roughness coreprofile.

The harder the material the more important it is to reducethe peak height Rpk. If mating surface is ceramic, the Rpkvalue must be down to 0.05 µm because the hard peakswill cut into the seal surface.

Other surface parameters are skewnesss and kurtosis,which give a more detailed picture of the surface. Forexplanation see Figure 31 below.

Profile Distribution

Negative skew

Positive skew

Leptokurtic(>3)

Platykurtic(<3)

Figure 31 Surface Measurement Visualized


23


The optimum view of the surface structure is a3-dimensional computerized picture showing not onlypeak, core and valley, but also direction of ridges andchannels in the surface structure. Such pictures can be veryvaluable in evaluating seal performance. This method ofmeasurement will expose widely varying surface profilesdependent upon basematerials, platings or coatings, andthe process used to produce the surface.

Table VII Properties of Surface Structure

Parameter Unworn (µm) Worn (µm)

Sa 0.11 0.21

Spk 0.09 0.11

Sk 0.25 0.37

Svk 0.40 0.98

Value measured in this dimension is called S instead of R,e.g. Sa is equivalent to Ra.

This method requires a sophisticated filter technique andsoftware program that can convert the mathematicalrounding. This technique is not readily available inindustry, but is available at some universities and technicalinstitutes.

3-dimensional surface texture characteristics are denotedby ”S”. 2-dimensional surface texture characteristics aredenoted by ”R”. E.g. Sa is the 3-D equivalent to Ra

Figure 32 Surface Structure


24


Hardware Specifications

Table VIII Comparative Hardness Scalesfor Steel

RockwellBrinell Number Rockwell

Rockwell TensileS hRockwell

C Standardball

Tungstenball A D

Rockwell15-N

e s eStrength(kpsi)

686766656463626160

59585756555453525150

49484746454443424140

39383736353433323130

29282726252423222120

500487475

464451442432421409400390381371

362353344336327319311301294286

279271264258253247243237231226

719722705688670654

634615595577560543525512496481

469455443432421409400390381371

362353344336327319311301294286

279271264258253247243237231226

85.685.084.583.983.482.882.381.881.2

80.780.179.679.078.578.077.476.876.375.9

75.274.774.173.673.172.572.071.570.970.4

69.969.468.968.467.967.466.866.365.865.3

64.764.363.863.362.862.462.061.561.060.5

76.976.175.474.573.873.072.271.570.7

69.969.268.567.766.966.165.464.663.863.1

62.161.460.860.059.258.557.756.956.255.4

54.653.853.152.351.550.850.049.248.447.7

47.046.145.244.643.843.142.141.640.940.1

93.292.992.592.291.891.491.190.790.2

89.889.388.988.387.987.486.986.485.985.5

85.084.583.983.583.082.582.081.580.980.4

79.979.478.878.377.777.276.676.175.675.0

74.573.973.372.872.271.671.070.569.969.4

311301292283274266257245239233

227221217212206200196191187182

177173169165160156152147144140

137133129126123121119116113111

Relationship between hardness and tensilestrength

The approximate relationship between the hardness of ametal and its tensile strength is shown by the followingformula in which B = Brinell hardness number.

Tensile strength = B x 515 (for Brinell numbers up to 175)Tensile strength = B x 490 (for Brinell numbers over 175)

These formulas give the tensile strength in pounds persquare inch and apply only to steels. This relationshipbetween hardness and tensile strength does not apply tononferrous metals with the possible exception of certainaluminum alloys.

Dynamic Alignment

Proper alignment of dynamic mating surfaces is animportant factor in improving seal performance. A wellaligned shaft and housing assembly will last longer, leakless, and operate more reliably at higher speeds andpressures. There are three types of misalignment whichshould be avoided during the hardware-design phase.

Angular Displacement

When the axis of a rod or piston moves at an angle awayfrom the true centerline, a condition called ”angulardisplacement” exists. It affects sealing integrity by loadingthe seal unevenly and puts undue stress on theelastomer/spring. The seal wears more rapidly and mayfail before its maximum wear life. Although this conditionis often detected in the static condition, it is essential tomeasure it dynamically as well and correct anymisalignment that is found.

Shaft to housingmisalignment

Figure 33 Angular Displacement


25


Eccentricity

In rotary service, when the shaft rotates about its own axisbut is offset from the centerline of the housing, a conditionof eccentric misalignment exists. In reciprocating service,the condition occurs when a rod or piston moves parallelto its own centerline but is offset from the true centerlineof the housing or bore. In this situation the seal is stressedmore heavily on one side, resulting in excess wear, andinsufficiently loaded on the opposite side causingleakage. When examining the used seal, it may showdamage on one side only. There may also be a visibledifference in wear rates on opposite sides of the seal.

Bore centerShaft center


Figure 34 Eccentricity

Shaft Runout

Shaft runout occurs when a shaft is rotating about its owncenterline which is offset from the true centerline of thehousing. The shaft centerline is not stable in one place asin eccentric misalignment, but is itself moving around thetrue centerline of the housing, resulting in a ”wobbling”effect. This condition stresses the seal around all points onits diameter. Shaft runout is measured with a dial indicatorand is expressed in ”thousandths of an inch” TIR (Total

Indicator Reading). Runout causes a seal to wearprematurely but with more of an even wear pattern thanthat of ”eccentric misalignment”. It is often a contributorto early leakage since a potential leak-path iscontinuously formed as the ”high point” of the shaftpasses each point on the sealing contact surface.

True center of rotationShaft center


Figure 35 Shaft Runout

Excessive Runout

The amount of shaft runout in a hardware design canrange from ”minimal” (has no significant effect on sealperformance) to ”moderate” (less-than-optimum wearlife) to ”excessive” (causing an unacceptable early failure).The amount that is considered ”excessive” can vary fromone application to another depending on shaft speed,fluid media, and the limits specified by the designengineer concerning leakage rates and wear life. It alsodepends on howmuch runout a particular seal design canhandle. Some seal designs can handle more runout thanothers.

Consult your Shamban sales engineer for further data onhigh-runout applications.


26


Table IX Typical Shaft Materials Used in Contact with Seals

MaterialTypical Hardness, RC

ApplicationsMaterialAnnealed Hardened

Applications

17-4 PH 35 44General-purpose with moderate corrosion resistance; a hardenablematerial for moderate-wear applications.

Type 303 - 20*Free-machining, very soft, for low speeds and pressures, withmoderate corrosion resistance.

StainlessSteel

Type 304 - 28*Soft material with moderate corrosion resistance for use at lowspeeds and pressures.

Type 316 - 28*Soft material with excellent corrosion resistance for use at low speedsand pressures.

Type 440C 22 44Heat-treated material is hardest of all stainless steels; for higherspeeds and pressures, but lower corrosion resistance than 300 seriesstainless steel.

CarbonSteel SAE 1045 19 58

Good mechanical properties with higher strength than otherlow-carbon steels. Use in noncorrosive media only.

Alloy

4140 10 50General-purpose applications in noncorrosive media, for moderatespeeds and pressures.

AlloySteel

4340 13 50General service with better mechanical properties than Alloy 4140.

ToolSteel D-2 - 62

High hardness and wear-resistance but limited corrosion resistance,for high speeds at moderate pressures.

Hard-anodizedaluminum 6061-T6 - 70+

Hard-anodized aluminum makes an excellent low-friction boresurface for reciprocating piston-seal applications. Not recommendedfor rotary service.

SoftMetals

Bronze 40 Rockwell B 85 Rockwell BLight-duty service in slow speeds, low pressures, where friction andcorrosion are not concerns.

Mild Steel 150 Brinell -Light-duty service in noncorrosive media only.

Non-metallics

Ceramic 70

For high wear resistance at high pressures or high speeds, and for lowfriction against TurconR seals due to lubrication-film-retentionproperties

metallics

Sapphire 9 Mohs scaleVery hard, chemically inert material with ability to obtain flamepolished finish less than Ra 0.05 µm.

The information supplied above is intended only as a guide. We strongly recommend that you test the selected material in the actual application beforeproduction use.*) Series 300 stainless steel cannot be hardened by heat treatment. Values shown are for 30% cold-worked material.


27


Table X Properties of Typical Platings

Coating Type MIL Spec. HardnessRC

NominalThickness Comments

Chrome

HardChrome

QQC 320BClass 2E 65 0.02-0.13

Wearresistant for light duty. Not recommended for fastrotary or corrosive applications.

ChromePlating

Thin-denseChrome

MIL-C-23422CClass 2 70 0.005-0.015

Higher wear resistance and lower friction thanconventional chrome in light to moderate speeds.

ElectrolessNickel

Nickel,as-deposited MIL-C-22074B 48-52 0.013-0.038

Excellent for corrosive applications in light to moderatespeeds and pressures.

NickelPlating Nickel,

fully-hardened MIL-C-26074B 58-70 0.013-0.038 Harder but more abrasive than as-deposited nickel.Not recommended for high-speed rotary.

Plasma

ChromiumOxide See note 2 71 0.013-0.038 Recommended when wear life is the primary concern.

Not recommended for high-shock loads.PlasmaSprayCoating Aluminum

Oxide MIL-P-833483 60-69 0.013-0.038Lower-cost, less wear-resistant but greater ductility thanchromium oxide coatings.

HVOF1 TungstenCarbide MIL-P-833482 67-74 dependant upon

application

High wear resistance, with higher bonding strength, forhigh speed and pressure combinations.

Anodizing Hard-anodizedAluminum

MIL-A-8625CType III Over 70 0.05-0.25

Excellent bore material in piston-seal applications, as alower friction mating surface than bare aluminum

The above information is intended only as a guide. Testing of the selected material in actual service conditions is recommended to determine thesuitability of a plating or coating for a specific application.1) HVOF = High Velocity Oxygen Fuel, a coating system using high-pressure, high-velocity spray guns (rocket guns) to improve

coating density, hardness, and bond strength.2) The MIL-Spec. is noted for reference only. Plasma-spray and HVOF coatings are typically produced using industry standards developed by certain

companies. Those standards normally meet or exceed the requirements of the military specifications noted above.


28


Finite Element Analysis (FEA)

FEA is a technique by which a complex geometry, such asa sealing element, is divided into small, simply shapedentities. Using results from simple test methods designedto provide a reasonable measure of the properties of theseal in the end application, you can construct elementaryequations relating the material properties and thecomplex loads of the behavior of the entire complexgeometry. These results can then be verified using eithertraditional test methods or simple test methods designedto isolate the behavior of one feature of the seal assembly.

With FEA, the seal designer can screen newmaterials anddesigns of the computer rapidly, and limit the number ofdesigns nessesary to be fully tested. This screening speedsthe development cycle. Some additional benefits includequickly predicting the performance of a design in a varietyof application conditions, providing input between theseal and the hardware conditions, and uncoveringportions of the seal material/seal design interaction.

Figure 36 Featuring WedgpakR in Unpressurized State

Figure 37 Featuring WedgpakR in Pressurized State


29


Seal Quick Reference Guide

Sealing elements have a decisive influence on the design,function, and service life of hydraulic and pneumaticcylinders and systems.

Leakage control, friction control, resistance to wear andextrusion, chemical resistance, resistance to high and lowtemperature extremes, compact form, and ease ofinstallation are demanded in order to meet the industryrequirements for a functional sealing solution.

The significance of the performance parameters and theirlimits determines the requirements of the sealingapplication. Shamban has developed a unique andcomplete range of seals to meet the challenging demandsof aerospace applications. Using optimized geometries,proven designs, and innovative materials, Shambanoffers aerospace customers a wide range of sealingsystems.

To select the most appropriate seal type and material, itis necessary to first define all the desired functionalparameters. Table XI on pages 30 - 35 can be used tomake an initial selection of seals and materials accordingto the specific requirements of each application.

The second column of Table XI contains the number of thepage on which further general information can be found,including specific design and installation instructions onthe particular seal type and materials (or materialcombinations with multi-element seals, e.g. Plus SealRII).

The quality of the mating surface is explained in thesection ”Surface Finish”, pages 17 - 23. Because surfacetexture has such a decisive influence on the functionality,reliability and service life of the seal system, it is importantthat these values are understood and applied.

Please do not hesitate to contact our ApplicationEngineering Department to request further informationand assistance on specific applications and to answertechnical questions.

Note on Ordering

The multi-element seal assemblies presented in thiscatalog are supplied as complete sets. The assemblyincludes the seal and proprietary elastomer energizingelement, such as the Plus SealRII which contains a TurelR

elastomer and TurconR cap seal.

Older seal designs not represented in this catalognaturally continue to be available. For all newapplications, we recommend you use the seal types andpreferred sizes listed here.

Other combinations of TurconR materials and specialdesigns can be developed and supplied for uniqueapplications. All intermediate sizes up to 3000 mm (10 ft.)diameter are available, providing there is sufficientdemand. Sizes over 3000 mm (10 ft.) are available forsome seal designs.

The sizes contained in the catalog are consideredstandard sizes. For non-standard sizes that includeproprietary elastomer design, a share of the mold costmay be charged to the Customer if there is only a limiteddemand for the size.


30


Table XI Selection Criteria for Aerospace Seals (To be continued. See next page )

Application

Seal Page FeaturesGland Move-

mentPressureDirection Piston Rod

TurconRVL SealR

High performanceunidirectional rod seal-Low friction

44

-Low friction-Leaktight MIL-G-5514F

AS4716 S No Yes

TurconRPlus SealRII

High performance slipper seal-Low constant friction-Resistance to wear and

50

-Resistance to wear andextrusion optimized-Easy installation-Recommended for highfrequencies

MIL-G-5514FAS4716 D Yes Yes

TurconRDouble DeltaRII

The original slipper sealdesignNo stick slip

54

-No stick-slip-Cost effective-Can be made to suit anyO-Ring size.


TurconRWedgpakR

Symmetrical seal with zeroleakageLow friction

56

-Low friction-Excellent extrusion and wearresistance-Preferred elastomer contactdynamic seal


TurconRHatsealRII

Combined slipper andelastomer contact seal.Zero leakage at low pressure

One and twoBack-up Ringg oo e width

59

-Zero leakage at low pressure-High pressure capability-Built-in sealing redundancy

groove width

MIL-G-5514F(except

000 series)AS4716

S No Yes

TurconRT-Seal

Excellent static seal-Geometry preventsspiraling/rolling of seal during

62

spiraling/rolling of seal duringinstallation and use MIL-G-5514F

AS4716 D Yes Yes

TurconRAQ-SealR5

-Excellent sealabilitybetween gas and oilLow friction and leaktight MIL G 5514F

65

-Low friction and leaktight MIL-G-5514F(only 300 and400 series)AS4716

D Yes No

KEY TO MOVEMENT: Reciprocating = Rotary = Oscillating = Helix = Static =

Single acting (Unidirectional) = S Double acting (Bidirectional) = DKEY TO PRESSURE DIRECTION:


31


Application

SpeedLimit

TemperatureRange *)

Pressure**)

Description Seal

The VL SealR has been developed over the past few years as anew generation unidirectional Rod seal. The design has takenthe latest empirical and theoretical experience into account in

TurconRVL SealR

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

the latest empirical and theoretical experience into account inorder to optimise performance, friction, leakage and servicelife. This has been achieved through in-house testing andqualified in customer applications.The back-pumping effect allows the seal to relieve pressuretrapped between tandem seals or between seals and double-acting scrapers.This superior slipper seal design has a contoured seal cap, formedto match the lemon shaped elastomer ring. The special elastomerallows more room for cap thickness, extended service life and

TurconRPlus SealRII

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

allows more room for cap thickness, extended service life andactivates the cap equally over the width, thereby reducing thefriction. The cap can be provided with grooves in order to reducefriction even further.

This is the original slipper seal that has a delta shaped capactivated by an O-Ring. This seal type has a good reputationfor low friction and good leakage control in many dynamic

TurconRDouble DeltaRII

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

for low friction and good leakage control in many dynamicapplications.

A triangular shaped elastomer part, protected against extrusion,rolling and spiraling by two delta rings. The minimized elastomerfootprint on the dynamic surface ensures an excellent leakage

TurconRWedgpakR

3.0 m/s9.8 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

footprint on the dynamic surface ensures an excellent leakagecontrol, and is an improvement over seals with broader elastomercontact as the tendency to adhere to sealing surface is greatlyreduced. The seal is ”foolproof”.

The best sealing characteristics of an elastomer contact sealand a slipper seal are combined in the HatsealRII. The mini-mized elastomer footprint reduces friction and extends service

TurconRHatsealRII

3.0 m/s9.8 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

mized elastomer footprint reduces friction and extends servicelife, while it maintains leakage control and dynamic perfor-mance at low pressure. The platform provides excellent extru-sion resistance in peak pressure conditions.

T-Seal is primarily recommended for static application, hasgood leakage control and is prevented from rolling/spiraling inthe gland at installation due to its unique shape

TurconRT-Seal

1.0 m/s3.3 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

the gland at installation due to its unique shape.

This unique seal design was developed from the originalTurconR AQ-SealR, but with an enlarged cap, allowing for acentrally positioned groove for a QUAD RINGR seal This seal

TurconRAQ-SealR5

3.0 m/s9.8 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

centrally positioned groove for a QUAD-RINGR seal. This sealtype has excellent leakage control of an elastomer contact seal,but at the same time, a very low friction and long service life,because the QUAD-RINGR seal is energized by the designsqueeze and not by the system pressure. AQ-SealR5 is especiallydesigned to separate fluids and gases in dynamic applications.

*) Temperature range is dependent uponmaterial selection. **)Pressure is dependent upon material and gap dimension.Avoid combining extreme limits


32


(To be continued. See next page )

Seal Page FeaturesApplication

Seal Page Features

Gland Move-ment

PressureDirection Piston Rod

TurconRVarisealR

Spring energized seal-Chemical resistance optimalWid

MIL-G-5514F

68

Chemical resistance optimal-Wide temperature range-Several spring designsavailable-Unlimited shelf life

MIL-G-5514FAS4716

(Groove mayhave to be splitfor installation)

S Yes Yes

TurconRBack-up Ring

-Spiral-SolidS f t

79

-Scarf-cut-StakbakR design MIL-G-5514F

AS4716 D Yes Yes

TurconRDual Piston Ring

-Spring energized seal-Low frictionMetallic e pande B + S l d

82

-Metallic expander-Wide temperature range-Controlled leakage-Saves space by using narrowgrooves-Low hysteresis-Unlimited shelf life

B + S glandstandard toMIL-G-5514F

AS4716bore sizes

D Yes No

TurconRGlyd RingR

Optimum slipper seal-Low frictionL i lif

B + S gland

85

-Long service life-Saves space by using narrowgrooves

B + S glandstandard toMIL-G-5514FAS 4716

bore and rodsizes

D Yes Yes

TurconRStepsealRK

Excellent primary seal-High pressure capabilityP li i ff t

B + S gland

91

g p p y-Pressure relieving effect

B + S glandstandard toMIL-G-5514F

AS4716bore and rod

sizes

S Yes Yes

TurconRRoto Glyd RingR

Rotary seal-Low speedHi h

98

p-High pressure

ISO 7425/1 D Yes Yes




33


Application

SpeedLimit

TemperatureRange *) Pressure **)

Description Seal

TurconR VarisealR is a single acting slipper seal activated with ametal spring, which is normally used in conditions of to extreme

TurconRVarisealR

15.0 m/s49.2 ft/s

-273 to +260_C-459.67 to +500_F

5000 psi35 MPa

metal spring, which is normally used in conditions of to extremetemperature, aggressive chemical media and long storage life. Atthe same time, it still features all the advances of the slipper sealas to low friction, no stick-slip, good leakage control and longservice life.

All standards and sizes available in virgin as well as filledPTFE compounds. The patented StakbakR design allows

d d d

TurconRBack-up Ring

- -70 to +200_C-94 to +390_F

8000 psi55 MPa

PTFE compounds. The patented Stakbak design allowsextended temperature and pressure ranges.

Dual Piston Ring is energized by a stainless steel wave shapedspring. The characteristics of the seal are very low friction, long

l f d ll d l k h l

TurconRDual Piston Ring

15.0 m/s49.2 ft/s

-70 to +260_C-94 to +500_F

5000 psi35 MPa

spring. The characteristics of the seal are very low friction, longservice life and a controlled leakage over the rings. Dual pistonrings can be supplied with various spring types, depending uponapplication.

An all-around seal for hydraulics and pneumatics.TurconR Glyd RingR combines the experience from years of field

d l b h h hl ff d l bl l

TurconRGlyd RingR

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

Turcon Glyd Ring combines the experience from years of fieldtest and laboratory research into highly efficient and reliable lowfriction seals for both high and low pressure systems widely usedin industrial applications. A special advantage is the possibility ofdecreasing groove width in for example, spool valves.

TurconR StepsealRK consists of a patented step cap, activatedby an O-Ring. This is a further development of the slipper sealf h l h b k

TurconRStepsealRK

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

5000 psi35 MPa

by an O Ring. This is a further development of the slipper sealfor the previously inactive cap now has an active back-pumpingeffect, when used with a secondary seal. This avoids pressurebuild-up during long strokes. Widely used in industrialapplications, the StepsealRK is now also available to theaerospace industry.

The TurconR Roto Glyd RingR is designed with chamfers,notches and radial grooves. The seal has no interference fit,b t i i d i O Ri

TurconRRoto Glyd RingR

2.0 m/s6.5 ft/s

-54 to +200_C-65 to +390_F

3000 psi21 MPa

g ,but is energized via an O-Ring.High pressure and low speed are the main features.



34


(To be continued. See next page )

Seal Page FeaturesApplication

Seal Page Features

Gland move-ment

DoubleActing Piston Rod

TurconRVarilipR

Rotary seal-Low frictionD bilit

100

-Dry run capability-Chemical resistance optimal-Outperforms traditional Oilseals

Gland to suitapplication S No Yes

Footseal II -Fits BACS11AA

103 BACS11AAGland S No Yes

TurconRExcluderRDC

-Optimum scraping effect-Dual lip for optimized effectV t d i il bl

107

p p-Vented version available

B + Sstandard toMS33675

S No Yes

TurconRVarisealR Scraper

Spring energized scraper-Wide temperature rangeCh i l i t ti l MIL G 5514F

111

p g-Chemical resistance optimal-Hi-Clean option

MIL-G-5514FAS4716

(Groove mayhave to be splitfor installation)

S Yes Yes

TurciteR SlydringRLuytexR SlydringR

-High load bearing capability-Very wear resistantN d i

114

y-No rod scoring-Protection of the seals Gland to suit

application D Yes Yes

TurconRWedgpakR Face Seal

Flange seal-Absorbing pulsing andib ti

118

g p gvibration-Internal and external version-Easy installation Face Gland S External Internal




35


Application

SpeedLimit

TemperatureRange *) Pressure **)

Description Seal

VarilipR has a metal or plastic casing incorporating one, twoor three seal lips in the same or reversed direction,d d h h d d f f

TurconRVarilipR

20.0 m/s65.6 ft/s

-60 to +200_C-76 to +390_F

290 psi2 MPa

or three seal lips in the same or reversed direction,depending upon the chosen design. Designed for fastrotating shafts, VarilipR characteristics are long service lifewith minimal friction combined with very good leakagecontrol.

Footseal II is an O-Ring activated slipper seal designed to fit theBACS11AA gland standard. The Footseal II is an improvement

h i i l F l d i

Footseal II

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F

6500 psi45 MPa

CS g a d s a da d. e oo sea s a p ove eover the original Footseal design.

TurconR ExcluderR is a solid ring with dual scraper lip contact,activated by an O-Ring, gives the best performance for anE l d R d i Th i li ill d d i f

TurconRExcluderRDC

15.0 m/s49.2 ft/s

-54 to +200_C-65 to +390_F -

ac va ed by a O g, g ves e bes pe o a ce o aExcluderR device. The primary lip will prevent dust and ice frompenetrating the system during the in-stroke of the rod while thesecondary lip will stop the oil film from going out of the systemduring the out-stroke.

TurconR VarisealR Scraper is a spring energized slipper sealwith optimized scraping angle. VarisealR Scraper is designed for

TurconRVarisealR Scraper

15.0 m/s49.2 ft/s

-70 to +260_C-94 to +500_F -

with optimized scraping angle. Variseal Scraper is designed forsystems with extreme working temperature, high speeds, andagressive media.

(3625-50 000 psi)

Wear rings made from polymeric materials offer manyadvantages over metallic bearings. Among these are:L f i ti l lif l t d l t

TurciteR SlydringRLuytexR SlydringR

(dependingupon

materialchoice)

-60 to +260_C-76 to +500_F

(3625-50 000 psi)

25 - 345 N/mm2

Depending onmaterial

g g gLow friction, long wear life, easy replacement and low cost.

TurconR WedgpakR Face Seal is a flange version of thestandard WedgpakR. Elastomer ring provides leaktightness,

h l d b h h R

TurconRWedgpakR Face Seal

- -54 to +200_C-65 to +390_F

5000 psi35 MPa

standard Wedgpak . Elastomer ring provides leaktightness,even with pulsing and vibration, whereas the TurconR ringprotects against extrusion.



36


Hardware Dimensions per MIL-G-5514F and AS4716, Bore

If You use AS4716 hardware dimensions, please contact Your Shamban Sales Engineer for recommendation.

GGroove width

øABore dia.

øFGroove dia.

RRadius

D/2Diametral clearance

G0

G1

G2

Break edge 0.13mm (.005 inch )+0.13-0.00

+.005-.000 0_ (typ. 0_)+5_

-0_

GGroove widths

Figure 38 Installation Drawing

Table XII Groove Dimensions, Bore

Bore Sizes per MIL-G-5514F Changesacc. to AS4716

Inch mm Inch mm

DashNo

øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.

Groove Width+0.010/-0.000

øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øFGrooveDia

øFGrooveDiaDia. Dia. Clearance

Max. G0 G1 G2Dia. Dia. Clearance

Max. G0 G1 G2Dia. Dia.

+0.001-0.000

+0.000-0.001

+0.025-0.000

+0.000-0.025

+0.000-0.001

+0.000-0.025

004005006007

008009010011012

0.1900.2210.2350.266

0.2970.3290.3600.4220.485

0.0760.1080.1230.154

0.1850.2170.2480.3100.373

0.004

4.835.615.976.76

7.548.369.1410.7212.32

1.932.743.123.91

4.705.516.307.879.47

0.100.1890.2200.2500.3120.375

4.805.596.357.929.53

+0.002-0.000

+0.000-0.002

+0.050-0.000

+0.000-0.050

+0.000-0.002

+0.000-0.050

013014015016017

018019020021022

023024025026027028

0.5500.6130.6750.7380.800

0.8630.9250.9911.0531.116

1.1781.2411.3031.3661.4281.491

0.4380.5010.5630.6260.688

0.7510.8130.8790.9411.004

1.0661.1291.1911.2541.3161.379

0.005

.015|

.005.094 .149 .207

13.9715.5717.1518.7520.32

21.9223.5025.1726.7528.35

29.9231.5233.1034.7036.2737.87

11.1312.7314.3015.9017.48

19.0820.6522.3323.9025.50

27.0828.6830.2531.8533.4335.03

0.13

0.38|

0.132.39 3.78 5.26

0.4410.5040.5660.6290.691

0.7530.8150.8810.9431.006

1.0681.1311.1931.2561.3181.381

11.2012.8014.3815.9817.55

19.1320.7022.3823.9525.55

27.1328.7330.3031.9033.4835.08

Recommended for static applications only. Metric sizes.


37



Inch mm Inch mm

DashNo

øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øFGrooveDia




+0.002-0.000

+0.000-0.002

+0.050-0.000

+0.000-0.050

+0.000-0.001

+0.000-0.025

110111112113114

115116

0.5500.6130.6750.7380.800

0.8630.925

0.3720.4350.4970.5600.622

0.6850.747

13.9715.5717.1518.7520.32

21.9223.50

9.4511.0512.6214.2215.80

17.4018.97

0.3790.4410.5020.5650.627

0.6890.751

9.6311.2012.7514.3515.93

17.5019.08

117118119

120121122123124

125126127128129

0.9911.0531.116

1.1781.2411.3031.3661.428

1.4911.5531.6161.6781.741

0.8130.8750.938

1.0001.0631.1251.1881.250

1.3131.3751.4381.5001.563

0.005

25.1726.7528.35

29.9231.5233.1034.7036.27

37.8739.4541.0542.6244.22

20.6522.2323.83

25.4027.0028.5830.1831.75

33.3534.9336.5338.1039.70

0.13

0.8170.8790.942

1.0031.0661.1281.1911.253

1.3161.3781.4411.5031.566

20.7522.3323.93

25.4827.0828.6530.2531.83

33.4335.0036.6038.1839.78

+0.002-0.000

+0.000-0.002

+0.050-0.000

+0.000-0.050

+0.000-0.002

+0.000-0.050

130131132133134

135136137138139

140

1.8051.8671.9301.9922.055

2.1182.1802.2432.3052.368

2.430

1.6271.6891.7521.8141.877

1.9402.0022.0652.1272.190

2.252

0.006.015|

.005.141 .183 .245

45.8547.4249.0250.6052.20

53.8055.3756.9758.5560.15

61.72

41.3342.9044.5046.0847.68

49.2850.8552.4554.0355.63

57.20

0.150.38|

0.133.58 4.65 6.22

1.6311.6931.7561.8181.881

1.9442.0062.0692.1312.194

2.256

41.4343.0044.6046.1847.78

49.3850.9552.5554.1355.73

57.30

141142143144145

146147148149

2.4932.5552.6182.6802.743

2.8052.8682.9302.993

2.3152.3772.4402.5022.565

2.6272.6902.7522.815

0.007

63.3264.9066.5068.0769.67

71.2572.8574.4276.02

58.8060.3861.9863.5565.15

66.7368.3369.9071.50

0.18

2.3192.3812.4442.5062.569

2.6312.6942.7562.819

58.9060.4862.0863.6565.25

66.8368.4370.0071.60

210211212213214

215216217218219

0.9911.0531.1161.1781.241

1.3031.3661.4281.4911.553

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.310

0.005.025|

.010.188 .235 .304

25.1726.7528.3529.9231.52

33.1034.7036.2737.8739.45

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.27

0.130.64|

0.254.78 5.97 7.72

0.7500.8120.8740.9360.999

1.0641.1241.1861.2491.311

19.0520.6322.2023.7725.37

27.0328.5530.1231.7233.30



38



Inch mm Inch mm

DashNo

øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øFGrooveDia




+0.002-0.000

+0.000-0.002

+0.050-0.000

+0.000-0.050

+0.000-0.002

+0.000-0.050

220221222

1.6161.6781.741

1.3731.4351.498

0.00541.0542.6244.22

34.8736.4538.05

0.131.3741.4361.499

34.9036.4738.07

223224225226227

1.8671.9922.1182.2432.368

1.6241.7491.8752.0002.125

0.006

47.4250.6053.8056.9760.15

41.2544.4247.6350.8053.98

0.15

1.6251.7501.8762.0012.126

41.2844.4547.6550.8354.00

228229230231232

233234235236237

238239240241242

2.4932.6182.7432.8682.993

3.1183.2433.3683.4933.618

3.7433.8683.9934.1184.243

2.2502.3752.5002.6252.750

2.8753.0003.1253.2503.375

3.5003.6253.7503.8754.000

0.007.025|

.010.188 .235 .304

63.3266.5069.6772.8576.02

79.2082.3785.5588.7291.90

95.0798.25101.42104.60107.77

57.1560.3363.5066.6869.85

73.0376.2079.3882.5585.73

88.9392.1095.2898.45101.63

0.180.64|

0.254.78 5.97 7.72

2.2512.3762.5012.6262.751

2.8763.0013.1263.2513.376

3.5013.6263.7513.8764.001

57.1860.3563.5366.7069.88

73.0576.2379.4082.5885.75

88.9392.1095.2898.45101.63

243244245246247

4.3684.4934.6184.7434.868

4.1254.2504.3754.5004.625

0.008

110.95114.12117.30120.47123.65

104.80107.98111.15114.33117.50

0.20

4.1264.2514.3764.5014.626

104.80107.98111.15114.33117.50

325326327328329

1.8671.9922.1182.2432.368

1.4951.6201.7461.8711.996

0.006

47.4250.6053.8056.9760.15

37.9741.1544.3547.5250.70

0.15

330331332333334

335336337338339

340341342343344345

2.4932.6182.7432.8682.993

3.1183.2433.3683.4933.618

3.7433.8683.9934.1184.2434.368

2.1212.2462.3712.4962.621

2.7462.8712.9963.1213.246

3.3713.4963.6213.7463.8713.996

0.007.035|

.020.281 .334 .424

63.3266.5069.6772.8576.02

79.2082.3785.5588.7291.90

95.0798.25101.42104.60107.77110.95

53.8757.0560.2263.4066.57

69.7572.9276.1079.2782.45

85.6288.8091.9795.1598.32101.50

0.180.89|

0.517.14 8.48 10.77

346347348349

4.4934.6184.7434.868

4.1214.2464.3714.496

0.008114.12117.30120.47123.65

104.67107.85111.02114.20

0.20



39



Inch mm Inch mm

DashNo

øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øABoreDia

øFGrooveDia

DDiam.

Clearance

RRad.


øFGrooveDia




+0.003-0.000

+0.000-0.003

+0.076-0.000

+0.000-0.076

425426427428429

430431432433434

435436437438439

440441442443444445

4.9745.0995.2245.3495.474

5.5995.7245.8495.9746.099

6.2246.3496.4746.7246.974

7.2247.4747.7247.9748.2248.474

4.4974.6224.7474.8724.997

5.1225.2475.3725.4975.622

5.7475.8725.9976.2476.497

6.7476.9977.2477.4977.7477.997

0.009 .375 .475 .579

126.34129.51132.69135.86139.04

142.21145.39148.56151.74154.91

158.09161.26164.44170.79177.14

183.49189.84196.19202.54208.89215.24

114.22117.40120.57123.75126.92

130.10133.27136.45139.62142.80

145.97149.15152.32158.67165.02

171.37177.72184.07190.42196.77203.12

0.23 9.53 12.07 14.71

446 8.974 8.497 0.010 227.94 215.82 0.25

+0.004-0.000

+0.000-0.004

+0.100-0.000

+0.000-0.100

447448449450451

452453454455456

457458459460

9.4749.97410.47410.97411.474

11.97412.47412.97413.47413.974

14.47414.97415.47415.974

8.9979.4979.99710.49710.997

11.49711.99712.49712.99713.497

13.99714.49714.99715.497

0.009.035|

.020.375 .475 .579

240.64253.34266.04278.74291.44

304.14316.84329.54342.24354.94

367.64380.34393.04405.74

228.52241.22253.92266.62279.32

292.02304.72317.42330.12342.82

355.52368.22380.92393.62

0.230.89|

0.519.53 12.07 14.71

Recommended for static applications only. Metric sizes.The above dimensions are for reference only, Shamban cannot be held responsible for printing errors etc.600 Series (3/8”) cross section AS4832 recommended for diameters above -442.Table XIII Overview of MIL-G-5514F Groove sizes

Series 000 100 200 300 400

Gland Depth 0.056 1.42 0.089 2.26 0.122 3.09 0.186 4.72 0.239 6.06

Gland WidthZero BUR *) 0.094 2.39 0.141 3.58 0.188 4.78 0.281 7.14 0.375 9.53

Gland WidthOne BUR *) 0.149 3.78 0.183 4.65 0.235 5.97 0.334 8.48 0.475 12.07

Gland WidthTwo BUR *) 0.207 5.26 0.245 6.22 0.304 7.72 0.424 10.77 0.579 14.71

Metric sizes. *) BUR = Back-up ring AS4716 has variation in groove depth and width. See spec. for detail


40


Hardware Dimensions per MIL-G-5514F and AS4716, Rod

If You use AS4716 hardware dimensions, please contact Your Shamban Sales Engineer for recommendation.

øBRod Dia.

øEGroove Dia.

GGroove width

RRadius

D/2Diametral clearance

G0

G1

G2


+.005-.000 0_ (typ. 0_)

+5_-0_

Groove widths


Table XIV Groove Dimensions, Rod

Rod Sizes per MIL-G-5514F Changesacc. to AS4716

Inch mm Inch mm

DashNo

øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øEGrooveDia.

øEGrooveDia.Dia. Dia. Clearance

Max. G0 G1 G2

Dia. Dia. ClearanceMax. G0 G1 G2

Dia. Dia.

+0.000-0.001

+0.001-0.000

+0.000-0.025

+0.025-0.000

+0.001-0.000

+0.025-0.000

004005006007

008009010011012

0.0760.1080.1230.154

0.1850.2170.2480.3100.373

0.1900.2210.2350.266

0.2970.3290.3600.4220.485

0.004

1.932.743.123.91

4.705.516.307.879.47

4.835.615.976.76

7.548.369.1410.7212.32

0.100.2940.3270.3590.4210.484

7.478.319.1210.6912.29

+0.000-0.002

+0.002-0.000

+0.00-0.05

+0.05-0.00

+0.002-0.000

+0.05-0.00

013014015016017

018019020021022

023024025026027028

0.4350.4980.5600.6230.685

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.3101.373

0.5470.6100.6720.7350.797

0.8600.9220.9851.0471.110

1.1721.2351.2971.3601.4221.485

0.005

.015|

.005.094 .149 .207

11.0512.6514.2215.8217.40

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.2734.87

13.8915.4917.0718.6720.24

21.8423.4225.0226.5928.19

29.7731.3732.9434.5436.1237.72

0.13

0.38|

0.132.39 3.78 5.26

0.5450.6080.6700.7330.795

0.8580.9200.9831.0451.108

1.1701.2331.2951.3581.4201.483

13.8415.4417.0218.6220.19

21.7923.3724.9726.5428.14

29.7231.3232.8934.4936.0737.67



41



Inch mm Inch mm

DashNo

øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øEGrooveDia.


Max. G0 G1 G2


Dia. Dia.

+0.000-0.002

+0.002-0.000

+0.00-0.05

+0.05-0.00

+0.002-0.000

+0.05-0.00

110111112113114

115116

0.3730.4350.4980.5600.623

0.6850.748

0.5510.6130.6760.7380.801

0.8630.926

9.4711.0512.6514.2215.82

17.4019.00

14.0015.5717.1718.7520.35

21.9223.52

0.5460.6090.6720.7340.797

0.8590.923

13.8715.4717.0718.6420.24

21.8223.44

117118119120121

122123124125126

0.8100.8730.9350.9981.060

1.1231.1851.2481.3101.373

0.9881.0511.1131.1761.238

1.3011.3631.4261.4881.551

0.00520.5722.1723.7525.3526.92

28.5230.1031.7033.2734.87

25.1026.7028.2729.8731.45

33.0534.6236.2237.8039.40

0.130.9851.0481.1101.1731.235

1.2981.3601.4231.4851.548

25.0226.6228.1929.7931.37

32.9734.5436.1437.7239.32

127128129

1.4351.4981.560

1.6131.6761.738

0.006.015|

.005.141 .183 .245

36.4538.0539.62

40.9742.5744.15

0.150.38|

0.133.58 4.65 6.22

1.6101.6731.735

40.8942.4944.07

130131132133134

135136137138139

140141142143144

145146147148149

1.6231.6851.7481.8101.873

1.9361.9982.0612.1232.186

2.2482.3112.3732.4362.498

2.5612.6232.6862.7482.811

1.8011.8631.9261.9882.051

2.1142.1762.2392.3012.364

2.4262.4892.5512.6142.676

2.7392.8012.8642.9262.989

0.007

41.2242.8044.4045.9747.57

49.1750.7552.3553.9255.52

57.1058.7060.2761.8763.45

65.0566.6268.2269.8071.40

45.7547.3248.9250.5052.10

53.7055.2756.8758.4560.05

61.6263.2264.8066.4067.97

69.5771.1572.7574.3275.92

0.18

1.7981.8601.9231.9842.047

2.1102.1722.2352.2972.360

2.4222.4852.5472.6102.672

2.7352.7972.8602.9222.985

45.6747.2448.8450.3951.99

53.5955.1756.7758.3459.94

61.5263.1264.6966.2967.87

69.4771.0472.6474.2275.82

210211212213214

215216217218219220221222

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.3101.3731.4351.498

0.9911.0531.1161.1781.241

1.3031.3661.4281.4911.5531.6161.6781.741

0.005.025|

.010.188 .235 .304

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.2734.8736.4538.05

25.1726.7528.3529.9231.52

33.1034.7036.2737.8739.4541.0542.6244.22

0.130.64|

0.254.78 5.97 7.72

0.9891.0511.1151.1771.240

1.3021.3651.4271.4901.5521.6151.6771.740

25.1226.7028.3229.9031.50

33.0734.6736.2537.8539.4241.0242.6044.20



42



Inch mm Inch mm

DashNo

øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øEGrooveDia.


Max. G0 G1 G2


Dia. Dia.

+0.000-0.002

+0.002-0.000

+0.00-0.05

+0.05-0.00

+0.000-0.000

+0.050-0.000

223224

1.6231.748

1.8661.991 0.006 41.22

44.4047.4050.57 0.15 1.865

1.99047.3750.55

225226227228229

230231232233234

235236237238239

240241242243244

245

1.8731.9982.1232.2482.373

2.4982.6232.7482.8732.997

3.1223.2473.3723.4973.622

3.7473.8723.9974.1224.247

4.372

2.1162.2412.3662.4912.616

2.7412.8662.9913.1163.240

3.3653.4903.6153.7403.865

3.9904.1154.2404.3654.490

4.615

0.007.025|

.010.188 .235 .304

47.5750.7553.9257.1060.27

63.4566.6269.8072.9776.12

79.3082.4785.6588.8292.00

95.1798.35101.52104.70107.87

111.05

53.7556.9260.1063.2766.45

69.6272.8075.9779.1582.30

85.4788.6591.8295.0098.17

101.35104.52107.70110.87114.05

117.22

0.180.64|

0.254.78 5.97 7.72

2.1152.2402.3652.4902.615

2.7402.8652.9903.1153.239

3.3643.4893.6143.7393.864

3.9894.1144.2394.3644.489

4.614

53.7256.9060.0763.2566.42

69.6072.7775.9579.1282.27

85.4588.6291.8094.9798.15

101.32104.50107.67110.85114.02

117.20

246247

4.4974.622

4.7404.864 0.008 114.22

117.40120.40123.57 0.20 4.739

4.864120.37123.55

325326327

1.4981.6231.748

1.8701.9952.120

0.00638.0541.2244.40

47.5050.6753.85

0.15

328329330331332

333334335336337

338339340341342

343344345

1.8731.9982.1232.2482.373

2.4982.6232.7482.8732.997

3.1223.2473.3723.4973.662

3.7473.8723.997

2.2452.3702.4952.6202.745

2.8702.9953.1203.2453.369

3.4943.6193.7443.8693.994

4.1194.2444.369

0.007.035|

.020.281 .334 .424

47.5750.7553.9257.1060.27

63.4566.6269.8072.9776.12

79.3082.4785.6588.8292.00

95.1798.35101.52

57.0260.2063.3766.5569.72

72.9076.0779.2582.4285.57

88.7591.9295.1098.27101.45

104.62107.80110.97

0.180.89|

0.517.14 8.48 10.77

346347348349

4.1224.2474.3724.497

4.4944.6194.7444.869 0.008

104.70107.87111.05114.22

114.15117.32120.50123.67 0.20



43



Inch mm Inch mm

DashNo

øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øBRodDia.

øEGrooveDia.

DDiam.

Clearance

RRad.


øEGrooveDia.


Max. G0 G1 G2


Dia. Dia.

+0.000-0.003

+0.003-0.000

+0.000-0.076

+0.076-0.000

425426427428429

430431432433434

435436437438

4.4974.6224.7474.8724.997

5.1225.2475.3725.4975.622

5.7475.8725.9976.247

4.9745.0995.2245.3495.474

5.5995.7245.8495.9746.099

6.2246.3496.4746.724

0.009

114.22117.40120.57123.75126.92

130.10133.27136.45139.62142.80

145.97149.15152.32158.67

126.34129.51132.69135.86139.04

142.21145.39148.56151.74154.91

158.09161.26164.44170.79

0.23

439440441442443

444445446

6.4976.7476.9977.2477.497

7.7477.9978.497

6.9747.2247.4747.7247.974

8.2248.4748.974

.035|

.020

.375 .475 .579

165.02171.37177.72184.07190.42

196.77203.12215.82

177.14183.49189.84196.19202.54

208.89215.24227.94

0.89|

0.519.53 12.07 14.71

+0.000-0.004

+0.004-0.000

+0.000-0.100

+0.100-0.000

447448449450451

452453454455456

457458459460

8.9979.4979.99710.49710.997

11.49711.99712.49712.99713.497

13.99714.49714.99715.497

9.4749.97410.47410.97411.474

11.97412.47412.97413.47413.974

14.47414.97415.47415.974

0.010

228.52241.22253.92266.62279.32

292.02304.72317.42330.12342.82

355.52368.22380.92393.62

240.64253.34266.04278.74291.44

304.14316.84329.54342.24354.94

367.64380.34393.04405.74

0.25

Recommended for static applications only. Metric sizes.The above dimensions are for reference only, Shamban cannot be held responsible for printing errors etc.600 Series (3/8”) cross section AS4832 recommended for diameters above -442.Table XV Overview of MIL-G-5514F Groove sizes

Series 000 100 200 300 400

Gland Depth 0.056 1.42 0.089 2.26 0.122 3.09 0.186 4.72 0.239 6.06

Gland WidthZero BUR *) 0.094 2.39 0.141 3.58 0.188 4.78 0.281 7.14 0.375 9.53

Gland WidthOne BUR *) 0.149 3.78 0.183 4.65 0.235 5.97 0.334 8.48 0.475 12.07

Gland WidthTwo BUR *) 0.207 5.26 0.245 6.22 0.304 7.72 0.424 10.77 0.579 14.71

Metric sizes. *) BUR = Back-up ring AS4716 has variation in groove depth and width. See spec. for detail

TurconRRRR VL SealRRRR

44


TurconR VL SealR*

Description

The TurconR VL SealR incorporates theoretical andempirical experience, in a new generation seal for the 21st

century.

The VL SealR has been developed over the past few yearsas a new generation unidirectional Rod seal. The designhas taken the latest empirical and theoretical experienceinto account in order to optimise performance, friction,leakage and service life. This has been achieved throughin-house testing and qualified in customer applications.See test section.

The back-pumping effect allows the seal to relievepressure trapped between tandem seals or between sealsand double-acting scrapers.

p

VL SealR Ring

O-Ring

Figure 40 TurconR VL SealR

Method of Operation

The sealingmechanism of the TurconR VL SealR (Figure40) is based on the hydrodynamic properties of the seal.The specially formed seal edge has a steep contactpressure gradient on the high pressure side and a shallowcontact pressure gradient on the low pressure side. Thisensures that the fluid film adhering to the piston rod isreturned to the high pressure chamber on the return strokeof the rod. This prevents the micro-fluid layer, that iscarried out of the high pressure chamber when the pistonrod is extended, from causing leaks.

This return delivery property prevents the build-up ofinterstage pressure normally associated with tandem sealconfigurations (Figure 41). Interstage pressure dependson the system pressure speed, the stroke length and thegroove design.

* Patent pending.(US Patent No. 6,497,415)

ppiSEF

: System pressure: Inter seal pressure: Out stroke: In stroke: Lubrication film

p

F

pi

p

E

S

Figure 41 Pressure Distribution in Tandem Installation

Advantages

Compared with current rod seals, the followingparameters have been improved:

- Seal gland: in accordance with MIL-G-5514 / AS4716.0 b/u width (not available in 000 series).

- Tighter leakage control.

- Lower friction: (reduced contact area between seal andmating surface).

- Simplicity of design, using standard size O-Ring.

- Featuring the TurconR StepsealR back pumping effect.

- The seal geometry prevents seal roll at low or shufflingpressure.

- Recommended surface finish max. Ra 0.2 µm / 8 µinch.


45


Technical Data

Operating pressure: 35 MPa (5000 psi)

Speed: up to 15.0 m/s (49.2 ft/s)with reciprocating movements

Temperature range:-54°C to +200°C(-65°F to +390°F)(depending on elastomer material)

Clearance: As per MIL-G-5514F/AS4716

Media: Mineral oil-based hydraulic fluids,flame retardant hydraulic fluids,environmentally safe hydraulic fluids(bio-oils), Phosphate Ester, water andothers, depending on the elastomermaterial (see Table IV, page 16)

Avoid combining extreme limits.

Materials

See Table I, page 12 and Table III, page 15.

Series

The VL SealR follows the series as described inMIL-G-5514F.We recommend that the guidelines for staticand dynamic sizes be followed to ensure a good servicelife for the seal.

For further information on the VL SealR in a non-standarddiameter size, please contact your Shamban salesengineer.

Scale 3:1100 Series

200 Series

300 Series

400 Series

Figure 42 Relationship Between the Profile Cross-Section


46


Ordering Example

VL SealR rod, with Notch.Series No. REL 2 from Table XVI

Dash No: 220

Material: TurconR: T05, see Table I, page 12

Order No. REL N M220 A T05

Series No.

0=No Notch (standard)**N=Notch

Seal part includesCertificate of conformance. (C.C.)

TurconR material code

Cross section*

2

MIL-G-5514F/AS4716 size

* 1=100 Series 4=400 Series2=200 Series3=300 Series

** Notching is recommended for service with highfrequency pulsating pressure, where pressure can bebuilt in the downstream upper corner. The notch willact as a draining channel.

Ordering Example

VL SealR rod, metric sizes.Series No. REL 2 from Table XVI

Rod dia.: 30.0 mm

Material: TurconR: T05, see Table I, page 12

Order No. REL 0 0300 A T05

Series No.

0=No Notch (standard)**N=Notch

Seal part includesCertificate of conformance. (C.C.)


Cross section*

2

Rod diameter in mm x 10

Note: O-Ring must be ordered seperately. Contact yourShamban sales engineer for dash-sizes.

Table XVI Installation Dimensions

Series Standard Extended Radial Clearance O RingSeries StandardR

ExtendedR

Radial Clearance O-RingC S i

Se es S a da dRange

e dedRange 1500 psi 3000 psi 5000 psi

O gCross-Section

REL 1 -110 to -149 6 to 100mm0.236”-3.937”

0.40mm0.016”

0.25mm0.010”

0.15mm0.006”

1.78mm0.070”

REL 2 -210 to -247 10 to 200mm0.394”-7.874”

0.40mm0.016”

0.25mm0.010”

0.20mm0.008”

2.62mm0.103”

REL 3 -325 to -349 20 to 400mm.787”-15.748”

0.50mm0.020”

0.30mm0.012”

0.20mm0.008”

3.53mm0.139”

REL 4 -425 to -460 35 to 999mm1.387”-39.330”

0.60mm0.024”

0.35mm0.014”

0.25mm0.010”

5.33mm0.210”

Only available in “0” Back-up groove width but can be used in 1 and 2 Back-up grooves using Spacer Rings. Not available in 000 Series.

The seal is designed for MIL-G5514F/AS4716 groovegeometries, but higher clearances can be accommodatedaccording to service conditions.

The seal is designed for 0 b/u groove width, but installationmay be faciliated by the use of a 1 b/u groove width andfilling the groove with a back-up ring, as a spacer.

Seals for 1 & 2 back-up ring groove widths can be usedwith solid b/u-rings (a scarfcut is only recommended forsmall diameters < 25 mm / 1 inch) to ease installation.Special back-up rings can be designed and supplied forunique application requirements.

The standard range can be installed in closed groove b/udown to 20 mm (-211) 0 b/u. Smaller diameters down to16mm (-114) can be installed for 1 or 2 b/u groove width.Back-up ring to be installed afterwards.


47


Test Data

Internal Test ReportTest fluid: MIL-H-83282Pressure: 0-3000 psi cyclic (0-207 bar)Stroke: 76 mm (3 inches)Rate: 1 HzTemp.: 121_C (250_F)Rod size: -214, IHCP R2 0.1-0.2 µm

(4-8 µinch)

Single Seal: 250 000 cyclesAverage wear: -0.20 %Average leakage: 0

Tandem Seal: 500 000 cyclesAverage wear: Primary: -0.42 %

Secondary: -0.11 %Average leakage: 0.11 g ~ 3 drops. (total)

Material: TurconR T19

Figure 43 Internal Test Report


48


Customer Test Report

Working Condition

Rod size: -114 (15.82 mm)hard-chrome

Pressure: 2320 psi (160 bar)Fluid: Phosphate EsterRate: 5 Hz max.Requirement: Zero leakage with friction

below 10 daN (2.2 lb)Temp.: Ambient

Table XVII Test Results

Seal Type 8,000 10,200 10,800 16,000Seal Type 8,000hours

10,200hours

10,800hours

16,000hours

TurconRT Seal

40 400

800drops40

drops400drops

Teststopped

-

TurconRVL SealR

3 4 5 403drops

4drops

5drops

40drops

TurconR VL SealR with Back-up Ring

Grooved TurconR Plus SealR II

Figure 44 Installation

Problem

Low service life, with original equipment. Hard chrome.

Solution

New design with tungsten carbide rod and sealing systemfrom Shamban.


49


VL SealR with Back-up Ring

Grooved Plus SealR IITurconR ExcluderR DC

VL SealR

Back-up Ring with O-Ring

Figure 45 Primary Flight Control

Requirement

Tandem rod seal, with pressure relieving feature.

High frequency up to 10 Hz.

Long service life with exeptional leak-free performance(30 000 flight hours).

Solution

Shamban tandemVL SealRwith excellent performance ontungsten carbide rod.

TurconR Plus SealRII

50



Description

The TurconR Plus SealRII, with a long, successful history, isan evolutionary improvement of the Double DeltaR. It is fullyinterchangeable with the Double DeltaRII in mostapplications.

Plus SealRII Cap

Elastomer

p

Figure 46 TurconR Plus SealRII

Method of Operation

The sealing effect of the Plus SealRII comes from the slightinterference of the seal cap with the rod or bore combinedwith the preload from the compressed elastomer. As thepressure increases, the system pressure joins forces with theelastomer and increases the loading of the seal capsignificantly.

The substitution of the proprietary lemon shapedelastomer under the Plus SealRII cap instead of atraditional O-Ring allows the cap to be thicker forincreased wear life. The new elastomer element alsoactivates the seal cap over awider area providing a lowerunit loading.

p p

Double DeltaRII Plus SealRII

Figure 47 Pressure Distribution

The Plus SealRII elastomer is carefully profiled to fit insidethe cap and supports the corners to prevent them fromsinking away from the sealing surface. This reduces the oilfilm under the seal to an absolute minimum.

Free cross-section Installed cross-section

Figure 48 TurconR Plus SealRII Cross-Section

By choosing the grooved version, a further decrease in thefilm thickness can be achieved. The grooves increase thenumber of pressure peaks that the oil filmmust pass under.Another advantage of the grooved seal is that the groovesserve as an oil reservoir when the seal is static. When theseal starts to move, the oil film is quickly re-establishedunder the sliding surface to lubricate the seal. This isespecially important in applications where the stroke isshorter than the seal width and it provides a generalimprovement in wear life. Ask for Shamban test reportR1069.

grooves

GroovedPlus SealRII Cap

Elastomer

p


The zero back-up width of the seal is generally preferredeven if a wider groove is available in smaller diameters.The extra space in a wider groove is used more efficientlywhen filled with back-up rings. This increases the seal lifewithout notably changing the friction.


51


0 b/u 1 b/u 2 b/u

Preferred solution

Figure 50 Use of Back-up Rings (BUR) with Plus SealRII

Where the Plus SealRII is subjected to pressure from bothsides alternately, it should always be equipped withsidewall notches, which allow the pressure to properlyactivate the elastomer (Fig. 51). The Plus SealRII for pistonuse is equipped with notches as standard whereas the rodversion must be specified with notches if they are deemednecessary.

A seal without notches can allow ”blow-by”

A seal with notches prevents ”blow-by”

p

p

p

p

Figure 51 Plus SealRII with Notches

Using a seal without notches may allow ”blow-by”, whichis a situation where the pressure shoots over the top of thePlus SealRII cap and forces the seal down into the groove.See also SAE document AIR 1243.

Advantages

- Good static and dynamic sealing effect- High abrasion resistance- Long life- Low friction, high efficiency- Stick-slip free starting- No vulcanization even during long static periods- Easy installation - foolproof- Available for all MIL-G-5514F/AS4716 sizes.

Technical Data

Operating pressure: 35 MPa (5000 psi) (up to 70 MPa(10 000 psi) with StakbaksR).


Temperature range: -54°C to +200°C(-65°F to +390°F)(depending on elastomer material)

Clearance: As per MIL-G-5514F/AS4716,larger with StakbaksR


Avoid combining extreme limits.

Materials


Series

The Plus SealRII follows the series as described inMIL-G-5514F/AS4716. We recommend that theguidelines for static and dynamic sizes be followed toensure a good service life for the seal.

For further information on the Plus SealRII in anon-standard diameter size, please contact your Shambansales engineer.

Scale 3:1 000 Series

100 Series

200 Series

300 Series

400 Series



52


Back-up Rings (BUR) for Plus SealRll

The following Back-up Rings are especially designed for usewith the Plus SealRll. The same BUR is used for both rod andbore.

For installation in closed grooves with rod/piston diametersmaller than 18 mm (3/4 inch), we recommend cutBack-up Rings.

1 b/u groove

2 b/u groove

Part No.:BUS1

(S33861)BGS1

(S33861)

BUS7(S33157)BGS7

(S33157)

Uncut

Cut

Uncut

Cut

Figure 53 Plus SealRII with Back-up Rings

For pressures above 35 MPa (5000 psi), we recommendusing one or two StakbakR Back-up Rings with the PlusSealRII.

1 b/u groove

2 b/u groove

Part No.:PP61

(S37061)RP51

(S37051)

PP62(S37062)RP52

(S37052)

Piston

Rod

Piston

Rod

Figure 54 Plus SealRII Set with StakbaksR

The StakbakR Back-up Ring for piston seals has a rigidHiModR anti-extrusion outer ring bonded to a TurconR

inner ring. A wide range of tests at 55 MPa (8000 psi)shows that the StakbakR efficiently protects the seal capfrom extrusion and improves the lifetime of the seal atlower pressures.

The use of StakbakR Back-up Rings is recommended whenthe Plus SealRII is used with increased diametral clearance,high pressure or temperature exceeding 135_C (275_F).

Ordering Example

Grooved Plus SealRII piston, 1 b/u width, Notch.1)

Series No. PP21 from Table XVIII, page 53.

Dash No: 220

Material: TurconR: T05, see Table I, page 12TurelR: NE, see Table III, Page 15

Order No. PP21 M220 A T05 NE

Series No.

MIL-G-5514F/AS4716 sizeSeal part includesCertificate of conformance. (C.C.)


Elastomer material code

0 = Notch (standard)W = No notch

0

1) Please see note page 53

Ordering Example

Back-up Ring for a one back-up width groove, for usewith Plus SealR IISeries No. BUS1

Dash No: 220

Material: T19

Order No. BUS1 M220 A T19

Series No.

MIL-G-5514F/AS4716 sizeSeal part includesCertificate of conformance (C.C.)


0 = standard

0

Please Note that Back-up Rings must be orderedseparately!

This example is for ordering the Back-up Ring as shownin Fig. 53.


53


Table XVIII TurconR Plus SealRII Types

Seal Groove Type: MIL-G-5514F / AS4716 Comments

Type Width Dia. SizeRange

0 b/u 1 b/u 2 b/u

RangeStandard

dash numbers

PistonPlus SealRII 1)

Foolproof design. 0 b/u width Plus SealRIIwith Back-up Ring recommended for lowfPP50

(S34750)PP81

(S34581)PP82

(S34582) 004 to 460

with Back up Ring recommended for lowfriction.Installable even in small closed grooves, butcare must be taken.

Pistongrooved Plus SealRII 1) PP52

(S30852) 4)

Grooves in surface cap increase wear life andleakage control. Friction is reduced due to thed d f ll b tt(S30852) 4)

PP60(S34760)

PP21(S34721)

PP22(S34722) 004 to 460

gdecreased surface area as well as betterlubrication of the surface.Ask for Shamban test report R1069.

RodPlus SealRII 1)

Foolproof design. 0 b/u width Plus SealRIIwith Back-up Ring recommended for lowf i tiRP75

(S30775)RP71

(S34571)RP72

(S34572) 004 to 460

p gfriction.Installable even in small closed grooves, butcare must be taken.

Rodgrooved Plus SealRII 1)

Grooves in surface cap increase wear life andleakage control. Friction is reduced due to thed d f ll b ttRP55

(S30855)RP11

(S34711)RP12

(S34712) 004 to 460

gdecreased surface area as well as betterlubrication of the surface.Ask for Shamban test report R1069.

PistonPlus SealRII StakbakR Set

)

For pressure above 35 MPa (5000 psi)For long service life. For high temperatureprotection of seal up to +260°C (500°F) 1 b/u

Not available PP61 2)

(S37061)PP62

(S37062) 020 to 460protection of seal up to +260°C (500°F).1 b/uconfiguration incorporates only 1 BUR. Availablealso for size -020 to -028 and -118 to -149even though this is static range!For more on StakbaksR, see BUR section.

RodPlus SealRII StakbakR Set

)

For pressure above 35 MPa (5000 psi)For long service life. For high temperatureprotection of seal up to +260°C (500°F) 1 b/u

Not available RP51 2)

(S37051)RP52

(S37052) 020 to 460protection of seal up to +260°C (500°F).1 b/uconfiguration incorporates only 1 BUR. Availablealso for size -019 to -028 and -117 to -149even though this is static range!For more on StakbaksR, see BUR section.

RodPlus SealRPR Set

Pressure relieving Plus SealRII, used as primaryseal in tandem rod seal concept. Care must bek f ll

Not available RP81 3)

(S38671)RP82

(S38672) 110 to 460

seal in tandem rod seal concept. Care must betaken for correct installation.1 b/u width incorporate only upstream.Also available for piston applications.

1) Notching Options: Piston seals are always delivered as standard with notch. To omit, change 5th character to ”W”. Ex. PP50W.Rod seals are always delivered as standard without notch. To include notch, change 5th character to ”N”. Ex. RP75N.Notches are not possible in 000 series, 0 b/u.

2) Supplied with back-up ring for the downstream side only.

3) Supplied with spacer ring for the upstream side only.

4) Used in North America.

TurconR Double DeltaRII

54



Description

The TurconR Double DeltaRII is the original seal designthat was developed to improve the performance of theO-Ring and Back-up Rings that were used in theMIL-G-5514F/AS4716 and older versions of that standard.

The TurconR Double DeltaRII represents a balancebetween the cap thickness and the squeeze of the O-Ringwithin the MIL-standard groove.

Double DeltaR

Capp

Figure 55 TurconR Double DeltaRII

Method of Operation

The O-Ring preloads the seal cap in the thin, flexiblemiddle section and provides good leakage control evenat low pressures.

In addition to the O-Ring preload, when the systempressure is added the oil film under the seal is furtherreduced. Double DeltaRII will always allow an oil film tobe dragged across the sealing surface. This oil film isnecessary to ensure a long service life for the DoubleDeltaR.

For use of notches and grooves, please see the sectionPlus SealRII, pages 50 - 53.

Groove

GroovedDouble DeltaR Cap

Notch

Figure 56 Grooved Double DeltaRII with Notch

Advantages

- Good static sealing effect- Low friction, high efficiency- Stick-slip-free starting- No adhesion to hardware even during long static periods- Available for all MIL-G-5514F/AS4716 sizes.- Can be made for all O-Ring sizes.

Technical Data


Speed: 15.0 m/s (49,2 ft/s)




Materials


Ordering Example

Grooved Double DeltaRII for rod, 1 b/u width,Series No. RD51 from Table XIX, page 55

Dash No: 212

Material: T99

Order No. RD51 M212 A T99

Series No.



0 = No notch (standard)N = Notch

0

Note: O-Ring must be ordered separately. Sizes followdash number.


55


Series

000 Series

100 Series

200 Series

300 Series

400 Series

Scale 3:1grooves not available

Figure 57 Relationship between the Profile Cross-Section

The Double DeltaRII follows the series as laid out inMIL-G-5514F/AS4716. We recommend that theguidelines for static and dynamic sizes be followed toensure a good service life for the seal.

The Double DeltaRII is also available for the (British Std.)B.S.4518 O-Ring grooves.

For further information on the Double DeltaR II in non-standard size, please contact your Shamban salesengineer.

Table XIX TurconR Double DeltaRII Types

Seal Groove Type: MIL-G-5514F/ AS4716 Comments


Co e s

0 b/u 1 b/u 2 b/u (2)Range

Standarddash numbers

PistonDouble DeltaRII (1)

PD60 PD61 PD62 S d d

Foolproof design.Zero back-up width version preferred.C t ff ti l tiPD60

(S30660)PD61

(S30661)PD62

(S30662)Standarddash sizes

p pCost-effective solution.

RodDouble DeltaRII (1)

Foolproof design.Zero back-up width version preferred.C t ff ti l tiRD50

(S30650)RD51

(S30651)RD52


p pCost-effective solution.

Pistongrooved Double DeltaRII (1)

Grooves in the surface of the cap increasewear life and leakage control.F 000 i l il bl i 2 b/PD80

(S32860)PD81

(S32861)PD82


gFor 000 serie grooves only available in 2 b/uwidth.

Rodgrooved Double DeltaRII (1)

Grooves in the surface of the cap increasewear life and leakage control.F 000 i l il bl i 2 b/RD80

(S32850)RD81

(S32851)RD82


gFor 000 serie grooves only available in 2 b/uwidth.

(1) Option Notches: Piston seals are always delivered as standard with notch. To omit, change 5th character to ”W”. Ex. PD60W.Rod seals are always delivered as standard without notch. To include notch, change 5th character to ”N”. Ex. RD81N.Notches are not available in 100 series, 0 + 1 b/u for grooved version.

(2) Seal width: For 2 b/u groove width, 0 or 1 b/u Double DeltaR II recommended with Back-up Rings.

TurconR WedgpakR

56


TurconR WedgpakR

Description

The TurconR WedgpakR consists of a proprietarytriangular elastomer supported by two Delta shapedBack-up Rings that prevent the elastomer from spiralingor rolling under severe working conditions.

DeltaBack-up Ring

elastomer

p

Figure 58 TurconR WedgpakR

Method of OperationThe small elastomer contact area of the WedgpakR

design results in a slipper seal-like performance with lowstatic and dynamic friction. At the same time, theelastomer wipes the surface efficiently providing excellentleakage control. The WedgpakR Back-up Rings providesupport and extrusion protection for the elastomer.

Originally designed as a static seal, theWedgpakRhasnow proved to be an excellent seal for dynamicapplications typically demanded in flight controlactuators. The WedgpakR is also used in gas/oilseparators both at high and low pressures.

For further information on WedgpakR dynamicperformance, please contact your Shamban salesengineer and ask for Test Report R1059.

Advantages

- Excellent static and dynamic sealing effect- Low friction, high efficiency- Available for all MIL-G-5514F/AS4716 sizes- Foolproof installation

Technical Data


Speed: 3.0 m/s (9.8 ft/s)




MaterialsSee Table I, page 12 and Table III, page 15.

SeriesThe WedgpakR follows the series as described inMIL-G-5514F/AS4716. We recommend that theguidelines for static and dynamic sizes be followed toensure a good service life for the seal.

000 Series

100 Series

200 Series

300 Series

400 Series

Scale 3:1

Figure 59 Relationship between the Profile Cross-Sectionfor one Back-up Groove Width

TurconR WedgpakR

57


Table XX WedgpakR Types



Co e s

0 b/u 1 b/u 2 b/uRange

Standarddash size

PistonWedgpakR PA81 PA82

Foolproof design. Excellent static and dynamic leakage control.Cut Back-up Rings are not recommended or available by standard

t b f th f ll i d h iPA80(S34780)

PA81(S34781)

preferred

PA82(S34782)

preferred

004 to 460

p g ypart number for the following dash sizes:0 b/u: Greater than -019, -131, -230 and -3411 b/u: Greater than -028, -142, -235, -349 and -4402 b/u: Greater than -028, -149, -244, -349 and -447

RodWedgpakR RA71 RA72

Foolproof design. Excellent static and dynamic leakage control.Cut Back-up Rings are not recommended or available by standardpart number for the following dash sizes:RA70

(S34770)

RA71(S34771)

preferred

RA72(S34772)

preferred

004 to 460part number for the following dash sizes:0 b/u: Greater than -020, -132, -230 and -3421 b/u: Greater than -028, -142, -236, -349 and -4402 b/u: Greater than -028, -149, -244, -349 and -447

PistonWedgpakREP

For pressure > 35 MPa (5000 psi) and increased extrusion gap.Cut Back-up Rings are not recommended or available by standard

t b f th f ll i d h iN.A. PA1

(S38621)PA2

(S38622) 004 to 460


RodWedgpakREP

For pressure > 35 MPa (5000 psi) and increased extrusion gap.Cut Back-up Rings are not recommended or available by standard

t b f th f ll i d h iN.A. RA1

(S38611)RA2

(S38612) 004 to 460


Ordering Example

WedgpakR for piston, 1 b/u width,Series No. PA81 from Table XX

Dash No: 212Material: T99 (standard recommendation)

see Table I, Page 12

Order No. PA81 M212 A T99 NE

Series No.




C

0 = Uncut delta RingC = Cut delta Ring

Note! For small installation in closed grooves withrod/piston diameter smaller than 18 mm (3/4 inch), werecommend cut Back-up Rings. This is specified by adding”C” in the 5th character of the part no.Example: PA81CM212AT99NE.(EP extrusion rings are always delivered with cut.)

Ordering Example

For the WedgpakREP we have the following options:

Order No. M212 A T99 NE

0 = Uncut delta RingC = Cut delta Ring


Seal part includesCertificate of conformance (C.C.)



051PA

5 = HiModR Z43 outer ring6 = HiModR Z60 outer ring*

1 = 1 b/u width2 = 2 b/u width

RA = RodPA = Piston

*) Note! Other Compounds are available for the outerring. Contact your Shamban sales engineer.

TurconR WedgpakR

58


Case Story

TurconR

WedgpakRTurciteR

SlydringR

TurconR ExcluderRDC

TurconR

WedgpakRTurconR

GroovedPlus SealRII

TurconR

GroovedPlus SealRII

TurconR

Dual Piston Ring

Figure 60 Main Rotor Damper, Helicopter

Problem

Low service life with original equipment.

Solution

New design with tungsten carbide rod and sealing systemfrom Shamban.

Conditions on coated rod

Pressure: Max.30 bar (435 psi)Speed: 400 mm/sec.Temperature: -54_C - +135_C

(-65_F - +275_F)Media: MIL-H-5606Frequency: 6 Hz

Other Application Successes

- ADCAPPS fuel pump swashplate- A330/A340, B747, L1011, DC10Engine driven hydraulic pumps

- C17 OBIGGS constant speed motor- V22 swashplate actuator- RJ hydraulic pump- B757/ B767 ram air turbine- C130 gun elevation actuator- B727 brake valve- Space shuttle payload damper- CH-53 nose landing gear strut- A310 control drive shaft- MD-80 nose gear retract actuator

TurconR HatsealRII

59


TurconR HatsealRII

Description

The TurconR HatsealRII is one of the original highperformance seals Shamban developed for the aircraftindustry. It combines the advantages of the elastomercontact seal with those of the slipper seal.

The HatsealRII was designed for demanding aerospaceapplications and is operating successfully in both militaryand commercial hydraulic components. The HatsealRIIcombines the low leakage advantages of an elastomercontact seal and the long life characteristics of TurconR

contact seals.

elastomer

Seal Ringp

Figure 61 TurconR HatsealRII

Method of Operation

The HatsealRII can be divided into 3 zones each with aspecific function, (Figure 62).

Zone 3Zone 2Zone 1

p

Figure 62 HatsealRII, 3 Zone Specific Function

Zone 1 Elastomer contact area

The elastomer has a small but well-defined contact areawhere the oil film on the rod is reduced almost to zero.Dueto the minimal elastomer contact, the friction of the sealis low. This ensures long life performance of the seal.

Zone 2 Slipper Seal area

In this area the TurconR platform is energized by themainbody of the elastomer to work like a slipper seal. Thissection will often run dry but since the TurconR materialshave very low coefficients of friction, this will not damagethe seal. In the unlikely event of a damaged elastomer lipin Zone 1, the slipper seal part will continue to work andgive a leakage performance like a slipper seal.

Zone 3 Back-up Ring area

The built-in Back-up Ring protects the seal from extrusioneven at high operating pressures or speeds. For increasedextrusion gaps and higher temperatures, a number ofspecial versions have been developed (see Figure 67).

Advantages

- Built-in redundancy- Zero leakage- Stick-slip free operation- High frequency applications

Technical Data


Speed: 3.0 m/s (9.8 ft/s)


Clearance: As per MIL-G-5514F/AS4716,higher with corner reinforcement.


Materials


TurconR HatsealRII

60


Table XXI TurconR HatsealRII Types

Seal Groove Type: Rod MIL-G-5514F/ AS4716 Comments

Type Width Dia. SizeR

Co e s

ype

1 b/u 2 b/u

a. S eRange

3 piece HatsealRIITo be used for easier installation with rod diameters below31.75 mm (1 1/4”).F di i b l 20 0 (0 787”) lit l d iRH31

(S34831)RH32

(S34832) -110 to -330

( )For dimensions below 20.0 mm (0.787”) a split gland isrecommended.

2 piece HatsealRIIFor dimensions below 31.75 mm (1 1/4”) a split gland isrecommended.I t ll ti i d i b h ti th T R t

RH51(S34851)

RH52(S34852) -110 to -460

Installation is made easier by heating up the TurconR part.

Ordering ExampleHatsealRll, 2 b/u width, 3 pieces. Series No. RH32 fromTable XXI

Dash No: 212

Material: T99 (standard recommendation)see Table I, page 12

Notes:

The HatsealRII can only be ordered in sizes from -110and up. Only available in rod seal configurations. Forsimilar performance on pistons seal, see the section onWedgpakR.

Order No. RH32 M212 A T99 NG

Series No.





0

Standard

Series

The HatsealRII is designed to fit the MIL-G-5514F/AS4716gland specification. We recommend that the guidelines forstatic and dynamic sizes be followed to ensure a good servicelife.

For further information on the HatsealRII in non-standardsizes, please contact your Shamban sales engineer.

100 Series

200 Series

300 Series

400 Series

Scale 3:1


TurconR HatsealRII

61


Application Examples

p

TurconR

HatsealRII(primary seal)

TurconR

WedgpakR(spare seal)

Figure 64 A320 Shock Absorber HatsealRII

HatsealRII installed as primary rod seal and with aWedgpakR as spare seal. The seals are kept lubricatedall the time and have shown remarkably long lifetimes.

p

TurconR

ScraperRing

TurconR

GroovedPlus SealRII

TurconR

HatsealRII(3 pcs.)

Figure 65 A320 Rudder Actuator HatsealRIIGrooved Plus SealRII and Scraper

HatsealRII installed as primary rod seal (single seal) toprevent leakage at both high and low pressure as well astemperature. Qualification test: 5.5 mill. cycles.

p

TurconR

StepsealRKTurconR

HatsealRII

Figure 66 EH 101 Rotor Control HatsealRII andStepsealRK

HatsealRII positioned as secondary rod seal to preventleakage at low pressure. Primary seal takes the peak of thesystem pressure, thereby protecting the HatsealRII. Seepage 8.

Alternative HatsealRII Designs

Over the years, a number of special versions of theHatsealRII have been designed to meet specific Customerdemands such as large extrusion gap, or the ability towithstand hardware deflection under load. These designsare still available, but we recommend that they only bespecified after a Shamban engineer has been consulted.

Corner reinforced HatsealRII

Chamfered HatsealRII

Cammed HatsealRII

Figure 67 Alternative HatsealRII Designs

TurconR T-Seal

62


TurconR T-Seal

Description

The TurconR T-Seal consists of a T-shaped elastomericsealing element supported by a TurconR Back-up Ring onboth sides.

The T-Seal is available for zero, one and two Back-up Ringwidths and all sizes of rod and piston glands as perMIL-G-5514F/AS4716.

Back-up Ring

elastomer

p

Figure 68 TurconR T-Seal

Method of Operation

The T-Seal utilizes an optimally designed elastomercomponent to maximize leakage control while offeringexcellent extrusion protection in a symmetric design.

The large elastomer footprint makes the T-Seal a goodstatic seal. The one and two Back-up Ring widths offerespecially good protection against extrusion.

Although the T-Seal is satisfactory in light duty dynamicapplications, the WedgpakR design is preferred for moredemanding dynamic applications. Ask for test report R1059.

Zero back-up width

One back-up width

Two back-up width

Figure 69 Comparison Between T-Seal and O-Ringwith Back-up Rings

Advantages- Good static sealing effect- Cost-effective- Available for all sizes of MIL-G-5514F/AS4716- Approved for a large number ofNational Stock Numbers

- Provides bi-directional sealing

Technical DataOperating pressure: 35 MPa (5000 psi) static

21 MPa (3000 psi) dynamic

Speed: 1 m/s (3.3ft/s)




Materials


TurconR T-Seal

63


Series

The T-Seal follows the series as described inMIL-G-5514F/AS4716. We recommend that theguidelines for static and dynamic sizes be followed toensure a good service life for the seal.

For more information on the T-Seal in non-standard sizes,please contact your Shamban sales engineer.

1 b/u 2 b/u0 b/u

Scale 3:1000 series

100 Series

200 Series

300 Series

400 Series

Figure 70 Relationship Between the Profile Cross-Sections

Table XXII T-Seal Types



Co e s

0 b/u 1 b/u 2 b/uRange

Standarddash size

PistonT-Seal

Good static sealing effect.WedgpakR preferred for all dynamic

li tiPB20(S38420)

PB21(S38421)

PB22(S38422) 006 to 460

gp p yapplications.

RodT-Seal

Good static sealing effect.WedgpakR preferred for all dynamic

li tiRB10

(S38410)RB11

(338411)RB12

(S38412) 005 to 460

gp p yapplications.

TurconR T-Seal

64


Ordering Example

T-Seal 2 b/u width,Series No. RB12 from Table XXII, page 63

Dash No: 210

Material: T99, see Table I, page 12

Order No. RB12 M212 A T99 NG

Series No.




0 = Uncut Back-up RingC = Cut Back-up Ring

C

Note! For small installation in closed grooves withrod/piston diameter smaller than 18 mm (3/4 inch), werecommend cut Back-up Rings. This is specified by adding”C” in the 5th character of the part no.Example: PB21CM212AT99NG.

T-Seal References

- F/A-18 - NLG shock strut- F/A-18 - Nose wheel steering actuator- F/A-18 - Horizontal stabilizer actuator- F-16 - MLG strut- F-16 - Integrated servoactuator- F-16 - Rudder actuator- F-15 - Ratio changer actuator- F-15 - Yaw ratio controller- UH60 - Tail rotor actuator- B737/B757 - Main and nose landing gear

TurconR AQ-SealR5

65


TurconR AQ-SealR5* (For use in MIL-Standard Grooves)

Description

The TurconR AQ-SealR5 is a patented development of theproven standard AQ-SealR.

The AQ-SealR5 is a double-acting piston seal designedfor reciprocating or helical movements.

The AQ-SealR5 is comprised of a dynamic sealingelement in TurconR with a limited footprint elastomericQUAD-RINGR1) Seal inset centrally into its sealing face. Theseal ring is energized by two elastomeric O-Rings.

p QUAD-RINGR Seal

TurconR Seal ring

Figure 71 TurconR AQ-SealR5

Method of Operation

The AQ-SealR5 combines the benefits of a low-frictionTurconR slipper seal with the high sealing characteristicsof an elastomeric seal by incorporating a limited foot printQUAD-RINGR Seal in the dynamic sealing face. Thisoptimizes leakage control while minimizing friction.

The unique characteristics of the AQ-SealR5 are thespecial seal profile with a defined seal edge and the useof two O-Rings as energizing elements to optimize thepressure profile.

Diametral Clearance

The AQ-SealR5 can be installed in MIL-G-5514 F/AS4716(-300 and -400 sizes only) glands using the standarddiametral clearance. If a larger clearance is needed or if thehardware deflects excessively during operation, the diametralclearance will increase. In this case we recommend the useof SlydringR bearing rings with the AQ-SealR5. Please seesection ”TurciteR SlydringR/LuytexR SlydringR”, page 114.

* Patent-No. EP 0 424 372

1) Reg. trade mark of Minnesota rubber

Advantages

- High sealing effect in applications requiring mediaseparation, e.g. fluid/fluid or fluid/gas

- Double security through the combination of low-frictionspecial materials with elastomer seals

- Low gas permeation rate- Higher pressure application limit, higher sliding speedcompared to the T-Seal

- Outstanding sliding properties, no stick-slip effect- Designed for zero back-up ring width groove

Technical Data




Clearance: As per MIL-G-5514F/AS4716,higher with StakbaksR

Media: For all common hydraulic fluids,including bio-oils and gases(see Table IV, page 16)

Materials


Series

The AQ-SealR5 follows the 300 and 400 Series describedin the MIL-G-5514F/AS4716.

For more information on the AQ-SealR5 in non-standardsizes, please contact your Shamban sales engineer.

Scale 3:1

300 Series 400 Series


TurconR AQ-SealR5

66


Application Example

Figure 73 Bootstrap Reservoir with TurconR AQ-SealR5

Case Story

The AQ-SealR5 is used in the Jetstream 31 propeller pitchadjuster mechanism with the following working conditions:Temperature: -50_C to +120_C (-58_F to +248_F)Pressure: 0.35 MPa to 5.5 MPa

(50 to 800 psi)Fluid: MIL-L-23699CService life: 7500 hours

Propeller hubSpring

Adjuster piston

Figure 74 Jetstream 31 Propellers(by courtesy of Dowty Aerospace Propellers)

Ordering Example

AQ-SealR5,Series No. PQ20 (Old Series No. S38620)

Dash No: 330

Material: T99 (standard), see Table I, Page 12

Order No. PQ20 M330 A T99 NG

Series No.



Elastomer material code for QUAD-RINGR

Standard

0

Note: O-Ring must be ordered seperately. Sizes can befound in Table XXIII, page 67.

TurconR AQ-SealR5

67


Installation AQ-SealR5, Series No. PQ20 (Old Series No. S38620)

GøB


+.005-.000 0_ (typ. 0_)

+5_-0_

D/2Diametral Clearance(see page 65)

RRadius Groove width

Groove Dia.

Bore Dia.øA


Table XXIII Groove Dimensions

D h

øABore Dia.

øBGroove Dia. G R O-

RingDash

QUAD-RINGRDashDash

No Inch mm Inch mm Inch Inch

gDashNo

DashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mmAS

568 AAS

568 A

325326327328329

330331332333334

335336337338339

340341342343344

345346347348349

1.8671.9922.1182.2432.368

2.4932.6182.7432.8682.993

3.1183.2433.3683.4933.618

3.7433.8683.9934.1184.243

4.3684.4934.6194.7434.868

47.4250.6053.8056.9760.15

63.3266.5069.6772.8576.02

79.2082.3785.5588.7291.90

95.0798.25101.42104.60107.77

110.95114.12117.32120.47123.65

1.4951.6201.7461.8711.996

2.1212.2462.3712.4962.621

2.7462.8712.9963.1213.246

3.3713.4963.6213.7463.871

3.9964.1214.2464.3714.496

37.9741.1544.3547.5250.70

53.8757.0560.2263.4066.57

69.7572.9276.1079.2782.45

85.6288.8091.9795.1598.32

101.50104.67107.85111.02114.20

.281|

.291

7.14|

7.39

.020|

.035

0.51|

0.89

128130132133135

137139141143145

147149151151152

152153153154154

155155156156157

031032033034035

036037038039040

041041042042043

043044044045045

046046047047048

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

.375|

425426427428429430

4.9745.0995.2245.3495.4745.599

126.34129.51132.69135.86139.04142.21

4.4974.6224.7474.8724.9975.122

114.22117.40120.57123.75126.92130.10

|.385

9.53|

9.78

245246247248249250

158158159159160160

D h

øABore Dia.

øBGroove Dia. G R O-

RingDash

QUAD-RINGRDashDash

No Inch mm Inch mm Inch/

Inch/

DashNo

DashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm AS568 A

AS568 A

431432433434

435436437438439

440441442443444

445446

5.7245.8495.9746.099

6.2246.3496.4746.7246.974

7.2247.4747.7247.9748.224

8.4748.974

145.39148.56151.74154.91

158.09161.26164.44170.79177.14

183.49189.84196.19202.54208.89

215.24227.94

5.2475.3725.4975.622

5.7475.8725.9976.2476.497

6.7476.9977.2477.4977.747

7.9978.497

133.27136.45139.62142.80

145.97149.15152.32158.67165.02

171.37177.72184.07190.42196.77

203.12215.82

.375|

.385

9.53|

9.78

.020|

.035

0.51|

0.89

251252253254

255256257259259

260261262263264

265267

161161162162

163163164165166

167168169170171

172174

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

447448449

450451452453454

455456457458459460

9.4749.97410.474

10.97411.47411.97412.47412.974

13.47413.97414.47414.97415.47415.974

240.64253.34266.04

278.74291.44304.14316.84329.54

342.24354.94367.64380.34393.04405.74

8.9979.4979.997

10.49710.99711.49711.99712.497

12.99713.49713.99714.49714.99715.497

228.52241.22253.92

266.62279.32292.02304.72317.42

330.12342.82355.52368.22380.92393.62

269271273

275276277278278

279279280280281281

176178179

180181182183184

185186187188189190

Metric sizes.

TurconR VarisealR

68


TurconR VarisealR

Design Concept

VarisealR is a spring-energized seal. The VarisealR

performs reliably in a wide range of applications whereconventional elastomeric seals fail due to chemical attack,extreme heat or cold, extrusion, friction or compressionset. The basic VarisealR design has two elements:

1. A pressure-actuated, ”U-shaped” jacket.

2. A metal spring.

The U-shaped jacket allows the system pressure toenergize the sealing lips, forcing them against the matinghardware with higher load as the system pressure rises.

The VarisealR is machined to very close tolerances,using only premium-grade materials. Each design isavailable in imperial and metric dimensions. Thestandard size range includes diameters from 3 mm(0.12 in) to 2500*) mm (8 ft).

System pressure

Figure 76 TurconR VarisealR Energized bythe System Pressure

Spring Load

The VarisealR is energized by a spring made fromstainless steel, HastelloyR, or ElgiloyR. The springprovides the load required for sealing when the systempressure is too low to fully actuate the lips. The springalso compensates for variations in gland tolerancesandnormal wear of the seal. As a seal loading device, ametal spring is more accurate for the control of frictionthan other devices, such as O-Rings.

See Spring Types, Table XXIV, page 70 for spring selection.

*) with extended size capability available.

Spring force

Figure 77 Spring Force

Jacket Material

VarisealR jackets are made from a variety ofhigh-performance polymers. There are two categories ofmaterial available:

1. TurconR Engineered-polymer compounds,based on low-friction TurconR resins, are foundin the majority of VarisealR applications.

2. ZurconR Compounds have outstandingabrasion-resistance.

See TurconR and ZurconR Seal Materials, pages 12 and13 for material selection.

High Performance

The unique design andmaterial properties of the VarisealR

provide design engineers with an assortment of solutionsfor difficult applications. Some of the outstandingcapabilities of the VarisealR include:

- Very low friction.

- High speed service.

- Universal chemical compatibility.

- Cryogenic service to -273°C (-459.67°F).

- High-temperature service to +260°C (+500°F).Higher peak temperatures are possible.

- Permanent elasticity with immunity to aging,embrittlement and compression set.

- No lubrication required.

TurconR VarisealR

69


Spring Types

A metal spring is incorporated in the design to provideelasticity to the seal. The spring makes the sealpermanently elastic despite changes in operatingtemperature, pressure or chemicals. Each of the springtypes found in the VarisealR has unique properties thataffect seal performance. The two most importantproperties of the spring - besides the corrosion resistanceof the metal - are its load value and deflection range. Thespring load has influence on the sealing ability, friction,and wear rate of the seal. The deflection rangedetermines the ability of the VarisealR to take up wearand compensate for variations in gland dimensions dueto hardware tolerances or eccentricity.

V-Spring (Cantilever)

This spring, used in the VarisealRM types and the RotoVarisealR, operates as a set of ”cantilever beams”extending from an arc at the bottom of the spring. Theshape of the spring causes the load to be focused on thefront edge of the sealing lip, contributing to the positive

wiping action of the seal. A Cantilever-beam spring has amoderate load and deflection range.

Helical Spring

Helical spring, used in the VarisealRH types, has a muchhigher unit load and a shorter deflection range than theother spring types. It is therefore excellent for staticapplications or very slow speeds where friction andwear arenot the primary concerns. The high spring load makes theVarisealRH suitable for applications with low temperatures.Under these conditions the 200 Series or larger is prefered.

SlantcoilR Spring

The patented SlantcoilR Spring, used in the VarisealRW,types consists of round wire formed into slanted coils. Thecoils load the seal radially.The SlantcoilR Spring provides a unique spring-loadingcharacteristic. The spring gives a relatively constant loadover a wide deflection range. This allows more accuratecontrol of friction during the working life of the seal.

Helical spring

V-spring

Percent deflection from free height

Springforce

Slantcoil SpringR

25 50

Figure 78 The Graph Represents a General Comparison of Load Curves for the Three Spring Types.The ”O” Indicates the Load Point when Installed in the Gland.

TurconR VarisealR

70


The 3 standard spring types can be found in the following table:

Table XXIV Spring Material Selection Guide

Media Spring Materials Spring Code

For general use with:OilGreaseAirWater, SteamSolventsFood, DrugsGas

Stainless steel

DIN mat. No. 1.4310(X12CrNi177)

AISI 301S

For use in corrosive media with:AcidsCausticsSea water

HastelloyR alloy C-276

Ni-Cr-Mo alloyDIN mat. No. 2.4819

UNS N10276

H

For petrochemical use with:Crude oilSour gas

ElgiloyR 1) 2)

Co-Ni alloyUNSR30003

E

1) NACE - approved

2) Not available as SlantcoilR springHastelloyR is a registered Trade Mark of Cabot CorporationElgiloyR is a registered Trade Mark of Elgiloy Company

Special TurconR VarisealRHi-Clean

All VarisealR with V-shaped springs are available with thespring groove filled with silicone.The silicone prevents entrapment of biological contaminantsin the seal, making the seal easier to clean.

The VarisealRHi-Clean is also used in applicationsworking in dirty environment such as mud, slurry or sandwhere the silicone maintains the flexibility of the springand seal lips by keeping media out of the spring groove.

VarisealRHi-Clean is ordered by adding a (D) after thematerial code.

Example:RVC200350AT40SD

RTurcon

V-shaped spring

Silicone

p

Ring

Figure 79 TurconR VarisealRHi-Clean

TurconR VarisealR

71


Installation Recommendations for Rod, MIL-G-5514F/AS4716 SizesTypes M14, W14 and H14

L1

r1

D/2

Split groove

Type

Cross section

M14 W14 H14

Series No. RV93 RV95 RV91

For installation in stepped groovesee page 76

øAøB


Table XXV Groove Dimensions

Series Rod DiameterøB h9

Groove Diameter2) GrooveWidth

Radius Radial Clearance3)D/2 max.

StandardRange

Extended1)Range øA H9 L1 +.010 r1

<2 MPa(300 psi)

<10 MPa(1500 psi)

<20 MPa(2900 psi)

<40 MPa(5800 psi)

000 .123 - 1.373 .123 - 3.997 øB + .112 .094 .010 .008 .004 .003 .002

100 .373 - 2.811 .185 - 5.497 øB + .178 .141 .015 .010 .006 .004 .003

200 .748 - 4.622 .248 - 8.997 øB + .244 .188 .015 .014 .008 .006 .003

300 1.498 - 4.497 .873 - 10.497 øB + .370 .281 .015 .020 .010 .008 .004

400 4.497 - 15.497 1.498 - 15.497 øB + .478 .375 .020 .024 .012 .010 .005

1) Available on request2) By diameters larger than ”Recommended Range”: The tolerance onøB and øA is changed from h9/H9 to h8/H8

3) For temperatures≥ 80_C (176_F) we recommend reducing theradial clearance. At pressures > 40 MPa (5800 psi):D/2 max. use H8/h8.In both cases we recommend that you contact your local Shambanrepresentative.

Ordering ExampleTurconR VarisealRH, Series RV91.Rod diameter: øB = 1.623 (MIL-G-5514F-326)Part No: RV910M326

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers areappended to the Part No. Together these form the ordernumber.

The order number for all intermediate sizes not shown inTable XXV can be determined following the example opposite.

Note that the series or cross section of the seal is automaticallygiven by the sizes suitable for the selected dash number ofMIL-G-5514F-326.

M326 T40 SRV91

Material Code - TurconR Ring

Series No.

Order No.

Material Code - spring


(D)

Hi-Clean - option

A0

Standard

TurconR VarisealR

72


Installation Recommendations for Bore, MIL-G-5514F/AS4716 SizesTypes M14, W14 and H14

Split groove

Type

Cross section

M14 W14 H14

Series No. PV93 PV95 PV91


D/2

L1r1

øA

øB


Table XXVI Groove Dimensions

Series Bore DiameterøA H9

Groove Diameter2) GrooveWidth


StandardRange

Extended1)Range øB h9 L1 +.010 r1

<2 MPa(300 psi)

<10 MPa(1500 psi)

<20 MPa(2900 psi)

<40 MPa(5800 psi)

000 .235 - 1.491 .235 - 4.118 øA - .112 .094 .010 .008 .004 .003 .002

100 .550 - 2.993 .360 - 5.680 øA - .178 .141 .015 .010 .006 .004 .003

200 .991 - 4.868 .485 - 9.243 øA - .244 .188 .015 .014 .008 .006 .003

300 1.867 - 4.868 1.241 - 10.868 øA - .370 .281 .015 .020 .010 .008 .004

400 4.974 - 15.974 1.974 - 15.974 øA - .478 .375 .020 .024 .012 .010 .005

1) Available on request2) By diameters larger than ”Recommended Range”: The tolerance onøA and øB is changed from h9/H9 to h8/H8

3) At pressures > 40 MPa (5800 psi): D/2 max. use H8/h8.We recommend that you contact your local Shamban sales engineer.

Ordering ExampleTurconR VarisealRM, Series PV93.Bore diameter: øA = 1.366 (MIL-G-5514F-216)Part No: PV930M216

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers areappended to the Part No. Together these form the ordernumber.The order number for all intermediate sizes not shown inTable XXVI can be determined following the exampleopposite.

Note that the series or cross section of the seal is automaticallyfollowing the sizes suitable for the selected dash number ofMIL-G-5514/AS4716.

M216 T40 SPV93


Series No.

Order No.



(D)

Hi-Clean - option

A0

Standard

TurconR VarisealR

73


Installation Recommendations for Rod, Metric SizesTypes M2, W and H

L1

r1

D/2

Split groove

Type

Cross section

M2 W H

Series No. RVA RVW RVE


øAøB


Table XXVII Groove Dimensions

Series Series No. Rod DiameterøB h9

GrooveDiameter

GrooveWidth


M2 W H StandardRange

Extended1)Range øA H9 L1 +0.2 r1

<2 MPa(300 psi)

<10 MPa(1500 psi)

<21 MPa(3000 psi)

<40 MPa(5800 psi)

000 RVA0 RVW0 RVE0 3.0 - 9.9 3.0 - 40.03) øB + 2.9 2.4 0.4 0.20 0.10 0.08 0.05

100 RVA1 RVW1 RVE1 10.0 - 19.9 6.0 - 200.02) øB + 4.5 3.6 0.4 0.25 0.15 0.10 0.07

200 RVA2 RVW2 RVE2 20.0 - 39.9 10.0 - 400.02) øB + 6.2 4.8 0.6 0.35 0.20 0.15 0.08

300 RVA3 RVW3 RVE3 40.0 - 119.9 20.0 - 700.02) øB + 9.4 7.1 0.8 0.50 0.25 0.20 0.10

400 RVA4 RVW4 RVE4 120.0 - 999.9 35.0 - 999.92) øB + 12.2 9.5 0.8 0.60 0.30 0.25 0.12

500 - - RVE5 1000.0 - 2500.9 80.0 -2500.02) øB + 19.0 15.0 0.8 0.90 0.50 0.40 0.20

1) Available on request2) By diameters larger than ”Recommended Range”: The tolerance onøB and øA is changed from h9/H9 to h8/H8

3) For temperatures≥ 80_C (176_F) we recommend reducing the radialclearance. At pressures > 40 MPa (5800 psi): D/2 max. use H8/h8.In both cases we recommend that you contact your local Shambanrepresentative.

Ordering Example

TurconR VarisealRH, Series RVE3.Rod diameter: øB = 80.0 mm (3.150 in)Part No: RVE300800

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers are appendedto the Part No. Together these form the order number.

The order number for all intermediate sizes not shown inTable XXVII can be determined by following the exampleshown opposite here.

0800 T40 SRVE3


Series No.

Order No.


Rod diameter x 10Seal part includesCertificate of conformance (C.C.)

(D)

Hi-Clean - option

A0

Standard

TurconR VarisealR

74


Installation Recommendations for Bore, Metric SizesTypes M2, W and H

Split groove

Type

Cross section

M2 W H

Series No. PVA PVW PVE

D/2

L1r1


øA

øB


Table XXVIII Groove Dimensions

Series Series No. Bore DiameterøA H9

GrooveDia.

GrooveWidth

Radius Radial Clearance3)D/2 max.*

M2 W H RecommendedRange

Extended1)Range øB h9 L1 +0.2 r1

<2 MPa(300 psi)

<10 MPa(1500 psi)

<21 MPa(3000 psi)

<40 MPa(5800 psi)

000 PVA0 PVW0 PVE0 6.0 - 13.9 6.0 - 40.0 øA - 2.9 2.4 0.4 0.20 0.10 0.08 0.05

100 PVA1 PVW1 PVE1 14.0 - 24.9 10.0 -200.02) øA - 4.5 3.6 0.4 0.25 0.15 0.10 0.07

200 PVA2 PVW2 PVE2 25.0 - 45.9 16.0 -400.02) øA - 6.2 4.8 0.6 0.35 0.20 0.15 0.08

300 PVA3 PVW3 PVE3 46.0 -124.9 28.0 -700.02) øA - 9.4 7.1 0.8 0.50 0.25 0.20 0.10

400 PVA4 PVW4 PVE4 125.0 -999.9 45.0 -999.92) øA - 12.2 9.5 0.8 0.60 0.30 0.25 0.12

500 - - PVE5 1000.0 -2500.0 100.0 -2500.02) øA - 19.0 15.0 0.8 0.90 0.50 0.40 0.20

1) Available on request2) By diameters larger than ”Recommended Range”:The tolerance onøA and øB is changed from h9/H9 to h8/H8

3) For temperatures≥ 80_C (176_F) we recommend reducing the radialclearance. At pressures > 40 MPa (5800 psi): D/2 max. use H8/h8.In both cases we recommend that you contact your local Shambanrepresentative.

Ordering Example

TurconR VarisealRM2, Series PVA3.Bore diameter: øA = 80.0 mm (3.150 in)Part No: PVA300800

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers areappended to the Part No. Together these form the ordernumber.The order number for all intermediate sizes not shown inTable XXVIII can be determined by following the exampleshown opposite here.

0800 T40 SPVA3


Series No.

Order No.


Bore diameter x 10Seal part includesCertificate of conformance (C.C.)

(D)

Hi-Clean - option

A0

Standard

TurconR VarisealR

75


Installation in Closed Grooves

Installation in split or lipped grooves is recommended.Installation in closed grooves is possible for rod and borediameters according to the following tables.

Rod Seals

Break corner R 0.2 max.

øB

Figure 84 Installation in Closed Groove

Table XXIX Installation of VarisealRM Typesinto Closed Grooves

Series No.R d S l

øBmin. øBmin.Se es o.Rod Seals

Inch mm

000 RVA0 1.250 30.0

100 RVA1 2.750 70.0

200 RVA2 4.375 110.0

300 RVA3 11.750 300.0

400 RVA4 19.500 500.0

Table XXX Installation ofVarisealRH and VarisealRW Typesinto Closed Grooves

Series No.R d S l

øBmin. øBmin.Se es o.Rod Seals

Inch mm

000 RVE0 and RVW0 1.000 30.0

100 RVE1 and RVW1 2.500 70.0

200 RVE2 and RVW2 4.250 110.0

300 RVE3 and RVW3 9.000 230.0

400 RVE4 and RVW4 15.250 400.0

500 RVE5 27.560 700.0

Metric sizes.

Piston Seals

Break corner R 0.2 max.

øA

Figure 85 Installation in Closed Groove

Table XXXI Installation of VarisealRM Typesinto Closed Grooves

Series No.Pi S l

øAmin. øAmin.Se es o.Piston Seals

Inch mm

000 PVA0 1.375 35.0

100 PVA1 2.000 50.0

200 PVA2 2.750 70.0

300 PVA3 4.125 105.0

400 PVA4 5.500 140.0

Table XXXII Installation ofVarisealRH and VarisealRW Typesinto Closed Grooves

Series No.Pi S l

øAmin. øAmin.Se es o.Piston Seals

Inch mm

000 PVE0 and PVW0 .750 20.0

100 PVE1 and PVW1 1.125 35.0

200 PVE2 and PVW2 1.750 48.0

300 PVE3 and PVW3 2.375 75.0

400 PVE4 and PVW4 3.750 95.0

500 PVE5 11.800 300.0

TurconR VarisealR

76


Installation in Stepped Grooves

Rod Seals

L1

r1

X

D/2

ZøA

øB

Figure 86 Stepped Grooves, Rod

Table XXXIII Groove Dimensions, Inch Sizes

Series Lip X Max.Radius

Min.Chamfer Z

Min.Seal ID

000 .008/.012 .005 .098 .250

100 .010/.015 .005 .138 .375

200 .015/.020 .007 .138 .750

300 .017/.023 .010 .177 1.000

400 .022/.028 .010 .295 2.000

Table XXXIV Groove Dimensions, mm Sizes

Series Rod SealTypes

LipHeight

ChamferLength

Radiusmax.

M2 W H X1) Zmin r1

000 RVA0 RVW0 RVE0 0.4 2.5 0.4

100 RVA1 RVW1 RVE1 0.6 3.5 0.4

200 RVA2 RVW2 RVE2 0.7 3.5 0.6

300 RVA3 RVW3 RVE3 0.8 4.5 0.8

400 RVA4 RVW4 RVE4 0.9 7.5 0.8

500 - - RVE5 1.5 7.5 0.8

1) X max = 0.02 x øB

Piston Seals

L1 r1

Y

D/2

ZøA

øB

Figure 87 Stepped Grooves, Piston

Table XXXV Groove Dimensions, Inch Sizes

Series Lip Y Max.Radius

Min.Chamfer Z

Min.Seal ID

000 .008/.012 .005 .098 .375

100 .010/.015 .005 .138 .562

200 .015/.020 .007 .138 1.000

300 .017/.023 .010 .177 1.375

400 .022/.028 .010 .295 2.500

Table XXXVI Groove Dimensions, mm Sizes

Series Piston SealTypes

LipHeight

ChamferLength

Radiusmax.

M2 W H Y1) Zmin r1

000 PVA0 PVW0 PVE0 0.4 2.5 0.4

100 PVA1 PVW1 PVE1 0.6 3.5 0.4

200 PVA2 PVW2 PVE2 0.7 3.5 0.6

300 PVA3 PVW3 PVE3 0.8 4.5 0.8

400 PVA4 PVW4 PVE4 0.9 7.5 0.8

500 - - PVE5 1.5 7.5 0.8

1) Y max = 0.035 x øANote: The recommended dimensions for ”Y”, ”X” and ”Z” cannot always be achieved. Please contact your Shamban sales engineer.

TurconR VarisealR

77


Special TurconR VarisealR

TurconR VarisealR with extended heel

All VarisealR are available in extended heel versions to fita one Back-up Ring groove.

The VarisealR with an extended heel is often used in highpressure applications, or when the extrusion gap is slightlylarger than recommended.

L3

L1

Pressure

Pressure

Figure 88 Standard TurconR VarisealR andTurconR VarisealR with Extended Heel

Table XXXVII Groove Width

Series Groove WidthSeriesNo. L1 L3

000 .094 .149

100 .141 .183

200 .188 .235

300 .281 .334

400 .375 .475

Groove width for standard (L1) and for 1 Back-up Ringgroove (L3) according to MIL-G-5514F/AS4716.

It is possible to order VarisealR with extended heel byusing the standard part number, but change the thirdcharacter as shown in table XXXVIII.

Table XXXVIII Part Numbers

VarisealR TypeStandardRod/Piston

Extended HeelRod/Piston

VarisealRM2 RVA/PVA RVB/PVB

VarisealRH RVE/PVE RVF/PVF

VarisealRW RVW/PVW RVX/PVX

TurconR VarisealR

78


Case Story

TurconR VarisealRHi-Clean

Figure 89 Wing Gear Aft Trunnion Bearing, Boeing 747

Problem

B747 operators have experienced migration of BoeingScraper from the spherical bearing gland.

Boeing requested that Shamban provides improvement toexisting scraper design.

Solution

Shamban VarisealRHi-Clean.

TurconR VarisealR Scraper easier to install than existingseal.

Notches allow grease to relieve if overpressured duringservicing.

Scraper lip energized by cantilever spring.

Boeing approved Shamban as preferred scraper option.

TurconR Back-up Ring

79


TurconR Back-up Ring (BUR)

Description

Shamban developed the TurconR BUR as an improvementto the original leather rings. Military standards were set upfor spiral ring type, scarfcut (single turn type) and solidring (uncut type). The BUR is a rectangular size crosssection ring, installed for seal extrusion protection.

p Back-up Ring

Figure 90 TurconR Back-up Ring

Method of Operation

The BUR is installed between the O-Ring and the groovewall, separating the O-Ring from the clearance gap.

p p

p

Single acting

Double acting

Figure 91 Single Acting Compared to Double ActingSealing System

Advantages

- Extrusion protection- Extending seal life- Low cost

Technical Data

Operating pressure: 21 Mpa (3000 psi) Standard design(TurconR T01)35 MPa (5000 psi) Standard designTurconR with fillers55 MPa (8000 psi) special version(Stakbaks).

Speed: 15 m/s (49.2 ft/s)

Temperature range: -70°C to +200°C(-94°F to +390°F)


Media: Practically all fluids, chemicals andgases

Materials

Standardmaterial for Back-up Ring is TurconR T01, VirginPTFE. Back-up Rings are available in stronger materials inorder to cope with specific applications, e.g. high pressure> 35 MPa (5000 psi).

Please contact your Shamban sales engineer for furtherinformation.


80


Series

The BUR follows the series described in MIL-G-5514F/AS4716. We recommend that the guidelines for static anddynamic sizes be followed to ensure a good service life.

For further information on the Back-up Rings innon-standard diameter sizes, please contact yourShamban sales engineer.

Scale 3:1 000 Series

100 Series

200 Series

300 Series

400 Series


Ordering Example

Back-up Ring, solid ring.Series No. BU95 from Table XLI, page 81.

Dash No: 230

Material: T01 (standard)

Order No. BU95 M230 A T01

Series No.

MIL-G-5514F/AS4716 size*Seal part includesCertificate of conformance (C.C.)


Standard

0

Note: O-Ring must be ordered separately.

Regarding AS4716 Back-up rings, see page 81

Guidelines for gap, pressure and size

Back-up Rings must be used if the pressure in Tables XXXIXand XL are exceeded.

Max. D/2p

Extrusion Gap

Figure 93 Extrusion Gap

Table XXXIX Extrusion gap size D for70 Shore Hardness

Series

O-RingCrosssection

Extrusion Gap DmminchSeries section

mminch

3.5 MPa(500 psi)

7 MPa(1000 psi)

10.5 MPa(1500 psi)

000 1.780.070

0.150.006

0.100.004

0.050.002

100 2.620.103

0.180.007

0.130.005

0.080.003

200 3.530.139

0.200.008

0.150.006

0.100.004

300 5.330.210

0.250.010

0.180.007

0.130.005

400 7.000.276

0.300.012

0.200.008

0.150.006

Table XL Extrusion gap size D for80 Shore Hardness

O-RingCross

Extrusion Gap Dmminch

SeriesCrosssectionmminch

3.5MPa(500psi)

7MPa(1000psi)

10.5MPa(1500psi)

14MPa(2000psi)

17.5MPa(2500psi)

000 1.780.070

0.200.008

0.150.006

0.100.004

0.050.002

0.030.001

100 2.620.103

0.250.010

0.180.007

0.130.005

0.080.003

0.040.002

200 3.530.139

0.300.012

0.200.008

0.150.006

0.100.004

0.050.002

300 5.330.210

0.350.014

0.250.010

0.180.007

0.130.005

0.060.002

400 7.000.276

0.400.016

0.300.012

0.200.008

0.150.006

0.070.003


81


Table XLI TurconR Back-up Ring TypesBack-up Ring Groove Type: MIL-G-5514F / AS4716 Comments

Type Part No. Gland Standard Dia. Size Range Std. dash size

Co e s

Cut Back-up Ring Former MS28774, now calledMIL R 8791/1 d f f AMS

BG91(MIL-R-8791/1)

MIL-G-5514F/AS4716(ID/OD)

004 to 460

o e MS 877 , ow ca edMIL-R-8791/1 and for future AMS.

Uncut Back-up Ring The MS27595 will have a futured i i AMS

BU95(MS27595)

MIL-G-5514F/AS4716(ID/OD)

004 to 460

e MS 7595 w ave a u u edesignation as AMS.

Cut Back-up Ring BG440G New gland standard AS 4716, designed tofi i di id l di i N

BG440G(S38544)

BG450G(S38545)

AS4716 (ID)

AS4716 (OD)004 to 460

New g a d s a da d S 7 6, des g ed ofit individual groove dimension. NoteID/OD differences.

Uncut Back-up Ring BU190G New gland standard AS 4716, designed tofi i di id l di i N

BU190G(S38619)

BU180G(S38618)

AS4716 (ID)

AS4716 (OD)004 to 460

New g a d s a da d S 7 6, des g ed ofit individual groove dimension. NoteID/OD differences.

StakbakR(Static Seal, Piston)

BG41

For greater extrusion resistance andincreased gap.

BG41(S37241)

MIL-G-5514F/AS4716 020 to 460

increased gap.

For use in 1 b/u gland

StakbakR(Static Seal, Piston) BG61

(S37261)


(S37261)

BG42(S37242)

MIL-G-5514F/AS4716 020 to 460

increased gap.

BG61: For 1 b/u groove width only


StakbakR(Static Seal, Rod)


BG51(S37251)

MIL-G-5514F/AS4716 020 to 460

increased gap.

For use in 1 b/u gland

StakbakR(Static Seal, Rod) BG71

(S37271)


(S37271)

BG52(S37252)

MIL-G-5514FAS4716 020 to 460 BG71: For 1 b/u groove width only



82



Description

The Dual Piston Ring Set consists of two TurconR ringseach with a step-cut. These rings are activated by a waveshaped stainless steel expander. On the inside of theTurconR rings there is a small notch into which a tab onthe spring fits. This prevents the rings from rotating relativeto each other. When installed correctly the step-cuts of thetwo rings will be separated by 180_.

TurconR

Piston Ring

Spring

Figure 94 TurconR Dual Piston Ring Set

Method of Operation

With zero or low system pressure, the two piston rings arekept in contact with the bore by the spring force. As thepressure increases it will act on the side and innerdiameter of the rings forcing them up against the bore.

The tolerances on the groove width and the width of therings are very tight which means that the Dual Piston Ringcan be made to fit the groove closely. This results in a sealthat reacts to pressure changes very quickly, a feature thatis used to the full extent in modern fly-by-wire flightcontrols where minimum hysteresis is important.

The narrow seal design provides a low friction incomparison to seals in a MIL-G-5514F/AS4716 groovewidth. The use of metallic expanders allows for a broadertemperature range and improves the chemical resistanceof the assembly.

Advantages

- Very low friction- Wide temperature range- Narrow groove- Controlled leakage- Excellent chemical resistance- Low hysteresis- MIL-G-5514F/AS4716 diameters from -112 and up

Technical Data

Operating pressure: 35 MPa (5000 psi) standard designFor higher pressures, special versionsare available

Speed: 15.0 m/s (49.2 ft/s)

Temperature range: -70°C to +260°C(-94°F to +500°F)Extended temp. capability withspecial Dual Piston Ring

Clearance: See Table XLII, page 83

Media: Practically all fluids, chemicals andgases(See Table IV, page 16)

Note: At high temperature and pressure, speed must bereduced. Consult your Shamban sales engineer.

Materials

See Table I, page 12 and Table III, page 15.TurconR T05 is standard material.

Materials, Spring

The standard springmaterial PH is 17-7 PH Stainless steelcondition CH900. This will also be supplied if the springcode is omitted. Other available materials are:

CC 17-7 PH condition CSS 301 per AMS 5519 full hard


83


Installation TurconR Dual Piston Ring Set, Series No. PF52 (Old Series No. S32152)

GR

D/2

øB

øA


Table XLII Groove Dimensions

D h

øABore Dia.

øBGroove Dia. G R D

Max.DashNo Inch mm Inch mm Inch Inch InchNo

+0.002-0.000

+0.05-0.00 ±0.004 ±0.10

Inch/

mm

Inch/

mm

Inch/

mm

112113114115116

0.6750.7380.8000.8630.925

17.1518.7520.3221.9223.50

0.4290.4280.4900.5530.615

10.9010.8712.4514.0515.62

210211212213214

215216217218219

220221222

0.9911.0531.1161.1781.241

1.3031.3661.4281.4911.553

1.6161.6781.741

25.1726.7528.3529.9231.52

33.1034.7036.2737.8739.45

41.0542.6244.22

0.6810.7430.8060.8680.931

0.9931.0560.9941.0571.119

1.1821.2441.307

17.3018.8720.4722.0523.65

25.2226.8225.2526.8528.42

30.0231.6033.20

.125|

.127

.010|

.020

.005

0.13

325326327328329

330331332333334

1.8671.9922.1182.2432.368

2.4932.6182.7432.8682.993

47.4250.6053.8056.9760.15

63.3266.5069.6772.8576.02

1.4331.5581.6841.8091.934

2.0592.1842.3092.4342.559

36.4039.5742.7745.9549.12

52.3055.4758.6561.8265.00

3.18|

3.23

0.25|

0.50

335336337338339

340

3.1183.2433.3683.4933.618

3.743

79.2082.3785.5588.7291.90

95.07

2.6842.8092.9343.0593.184

3.309

68.1771.3574.5277.7080.87

84.05

.006

0.15

D h

øABore Dia.

øBGroove Dia. G R D

Max.DashNo Inch mm Inch mm Inch Inch InchNo

+0.002-0.000

+0.05-0.00 ±0.004 ±0.10

Inch/

mm

Inch/

mm

Inch/

mm

341342

3.8683.993

98.25101.42

3.4343.559

87.2290.40 .125 .010

.0060.15

343344

345346347348349

4.1184.243

4.3684.4934.6184.7434.868

104.60107.77

110.95114.12117.30120.47123.65

3.5583.683

3.8083.9334.0584.1834.308

90.3793.55

96.7299.90103.07106.25109.42

.125|

.127

3.18|

3.23

.010|

.020

0.25|

0.50

.007

0.18

+0.003-0.000

+0.076-0.000 ±0.004 ±0.10

425426427428429

430431432433434

435436437438439

440441442443444

445446447

4.9745.0995.2245.3495.474

5.5995.7245.8495.9746.099

6.2246.3496.4746.7246.974

7.2247.4747.7247.9748.224

8.4748.9749.474

126.34129.51132.69135.86139.04

142.21145.39148.56151.74154.91

158.09161.26164.44170.79177.14

183.49189.84196.19202.54208.89

215.24227.94240.64

4.4144.5394.6644.7894.914

5.0395.1645.2895.4145.539

5.6645.7895.9146.1646.414

6.6646.9147.1647.4147.664

7.9148.4148.914

112.12115.29118.47121.64124.82

127.99131.17134.34137.52140.69

143.87147.04150.22156.57162.92

169.27175.62181.67188.32194.67

201.02213.72226.42

.188|

.190

4.78|

4.83

.010|

.020

0.25|

0.50

.008

0.20

Metric sizes.


84


Series

Dash 343 - 349

Dash 425 - 447

Dash 112

Dash 113 - 216

Dash 217 - 342

Scale 3:1


Ordering Example

Dual Piston Ring Series No. PF52

Dash No: 214

Material: T05


Order No. PF52 T05A

Dash No.

Series No.

214


S

Standard Expander material

0

0 = StandardK = a.r.t. (see note)

Groove standard

B

Note! For demanding dynamic applications an insert canbe added to the anti-rotation tab (a.r.t.) to provide greaterstrength. This option can be ordered by inserting a ”K” inthe 5th character of the part number.

Application Example

TurconR

Dual Piston RingTurconR

Scraper Ring

TurconR

Grooved Plus SealRIITurconR

HatsealRII

p

Figure 97 Rudder Actuator (Fly-By-Wire), Airbus A320

TurconR Glyd RingR

85


TurconR Glyd RingR for use withMIL-G-5514F/AS4716 Rod/Bore

Description

The TurconR Glyd RingR is a simple and reliable sealconsisting of a TurconR seal cap activated by an O-Ring.

TurconR

Glyd RingR

Figure 98 TurconR Glyd RingR

Method of Operation

A true slipper seal, the Glyd RingR relies on the O-Ringenergization to provide the sealing force at zero or lowpressure. As the pressure increases the Glyd RingR isenergized by the hydraulic pressure and is force againstthe sealing surface.

The Glyd RingR is made with a slight interference fit whichensures initial contact with the mating surface.

The geometry of the Glyd RingR allows the formation ofa lubricating hydro-dynamic oil film under the seal inreciprocating applications.

All piston versions of the Glyd RingR are supplied withnotches to prevent blow-by (see also Plus SealRII,page 50). In the case of rod versions, notches are anoption andmust be specified in the part number. See page86 ”Option Notches”.

Advantages

- Low friction- Low cost- Narrow groove- Design flexibility - adaptable for almost allgroove sizes

- Long service life- High operational reliability- Stick-slip free operation- Easy installation- Available for all diameters

Technical Data

Operatingpressure: 35 MPa (5000 psi)

Speed: up to 15 m/s (49.2 ft/s) withreciprocating movements

Temperaturerange: -54°C to +200°C

(-65°F to +390°F)(depending on elastomer material)

Clearance: As indicated on the enclosed datasheets

Media: Mineral oil-based hydraulic fluids,flame retardant hydraulic fluids,environmentally safe hydraulic fluids(bio-oils), Phosphate ester, water andothers, depending on the elastomermaterial (see Table IV, page 16)

Materials


TurconR Glyd RingR

86


Series

The Glyd RingR is designed to mate with standardMIL-G-5514F/AS4716 rod or bore sizes, however thegroove dimensions are a Shamban design standard.

Scale 3:1Dash 007 - 010

Dash 011 - 028

Dash 110 - 149

Dash 210 - 247

Dash 325 - 352

Dash 428 - 460

Figure 99 Relationship Between the ProfileCross-Section Series No. PG28 and RG27

Ordering Example

TurconR Glyd RingR Series No. PG28 with notch

Dash No: 214

Material: T05 (standard), see Table I, page 12.

Seal part includescertificate of conformance (C.C.)

Order No. PG28 T05A

Dash No.

Series No.

214


0

Groove standard

B

0 = Notch (standard)W = No notch

Note: O-Rings are ordered separately. Sizes can befound in Table XLIII, page 87 and Table XLIV, page 89.

Option Notches: Piston seals are always delivered asstandard with notch. To omit notch, change 5th characterto ”W”. Ex. PG28W.Rod seals are always delivered as standard withoutnotch. To include notch, change 5th character to ”N”.Ex. RG27N

Application Example

Figure 100 Typical Spool Valve

The Glyd RingR offers space savings and easy assemblyin spool valves.

TurconR Glyd RingR

87


Installation TurconR Glyd RingR Bore, Series No. PG28 (Old Series No. S32928)

G

D/2 max

R øB

øA


Table XLIII Groove Dimensions

D h

øABore Dia.

øBGroove Dia. G R D O-

RingD hDash

No Inch mm Inch mm Inch Inch Inch

gDashNoNo

+0.001-0.000

+0.025-0.000

+0.000-0.001

+0.000-0.025

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

007008009

010011012

0.2660.2970.329

0.3600.4220.485

6.767.548.36

9.1410.7212.32

0.1240.1550.187

0.2180.2480.311

3.153.944.75

5.546.307.90

.004

0.10

006007008

009010011

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

013014

015016017018019

020021022023024

025026027028

0.5500.613

0.6750.7380.8000.8630.925

0.9911.0531.1161.1781.241

1.3031.3661.4281.491

13.9715.57

17.1518.7520.3221.9223.50

25.1726.7528.3529.9231.52

33.1034.7036.2737.87

0.3760.439

0.5010.5640.6260.6890.751

0.8170.8790.9421.0041.067

1.1291.1921.2541.317

9.5511.15

12.7314.3315.9017.5019.08

20.7522.3323.9325.5027.10

28.6830.2831.8533.45

.081|

.086

2.06|

2.19

.005|

.015

0.13|

0.38

.005

0.13

012013

014015016017018

019020021022023

024025026027

110111112113114

0.5500.6130.6750.7380.800

13.9715.5717.1518.7520.32

0.3000.3630.4250.4880.550

7.629.2210.8012.4013.97

↓

109110111112113

D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

115116117118119

120121122123124

125126127128129

130131132133134

135136137138139

140141142143144

0.8630.9250.9911.0531.116

1.1781.2411.3031.3661.428

1.4911.5531.6161.6781.741

1.8051.8671.9301.9922.055

2.1182.1802.2432.3052.368

2.4302.4932.5552.6182.680

21.9223.5025.1726.7528.35

29.9231.5233.1034.7036.27

37.8739.4541.0542.6244.22

45.8547.4249.0250.6052.20

53.8055.3756.9758.5560.15

61.7263.3264.9066.5068.07

0.6130.6750.7410.8030.866

0.9280.9911.0531.1161.178

1.2411.3031.3661.4281.491

1.5551.6171.6801.7421.805

1.8681.9301.9932.0552.118

2.1802.2432.3052.3682.430

15.5717.1518.8220.4022.00

23.5725.1726.7528.3529.92

31.5233.1034.7036.2737.87

39.5041.0742.6744.4545.85

47.4549.0250.6252.2053.80

55.3756.9758.5560.1561.72

.126|

.131

3.20|

3.33

.005|

.015

0.13|

0.38

.005

0.13

114115116117118

119120121122123

124125126127128

129130131132133

134135136137138

139140141142143

Metric sizes.

TurconR Glyd RingR

88


D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

145146147148149

2.7432.8052.8682.9302.993

69.6771.2572.8574.4276.02

2.4932.5552.6182.6802.743

63.3264.9066.5068.0769.67

↑ ↑ ↑

144145146147148

210211212213214

215216217218219

220221222223224

225226227228229

230231232233234

235236237238239

240241242243244

245246247

0.9911.0531.1161.1781.241

1.3031.3661.4281.4911.553

1.6161.6781.7411.8671.992

2.1182.2432.3682.4932.618

2.7432.8682.9933.1183.243

3.3683.4933.6183.7433.868

3.9934.1184.2434.3684.493

4.6184.7434.868

25.1726.7528.3529.9231.52

33.1034.7036.2737.8739.45

41.0542.6244.2247.4250.60

53.8056.9760.1563.3266.50

69.6772.8576.0279.2082.37

85.5588.7291.9095.0798.25

101.42104.60107.77110.95114.12

117.30120.47123.65

0.6170.6790.7420.8040.867

0.9290.9921.0541.1171.179

1.2421.3041.3671.4931.618

1.7441.8691.9942.1192.244

2.3692.4942.6192.7442.869

2.9943.1193.2443.3693.494

3.6193.7443.8693.9944.119

4.2444.3694.494

15.6717.2518.8520.4222.02

23.6025.2026.7728.3729.95

31.5533.1234.7237.9241.10

44.3047.4750.6553.8253.82

60.1763.3566.5269.7072.87

76.0579.2282.4085.5788.75

91.9295.1098.27101.45104.62

107.80110.97114.15

.166|

.171

4.22|

4.35

.010|

.025

0.25|

0.64

.006

0.15

208209210211212

213214215216217

218219220222223

224225226227228

229230231232233

234235236237238

239240241242243

244245246

325326327328329

330331332333334

335336

1.8671.9922.1182.2432.368

2.4932.6182.7432.8682.993

3.1183.243

47.4250.6053.8056.9760.15

63.3266.5069.6772.8576.02

79.2082.37

1.3131.4381.5641.6891.814

1.9392.0642.1892.3142.439

2.5642.689

33.3536.5339.7342.9046.08

49.2552.4355.6058.7861.95

65.1368.30

.247|

.252

6.27|

6.40

.020|

.035

0.50|

0.73

.007

0.18

323324325326327

328329330331332

333334

D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

337338339

340341342343344

345346347348349

3.3683.4933.618

3.7433.8683.9934.1184.243

4.3684.4934.6184.7434.868

85.5588.7291.90

95.0798.25101.42104.60107.77

110.95114.12117.30120.47123.65

2.8142.9393.064

3.1893.3143.4393.5643.689

3.8143.9394.0644.1894.314

71.4874.6577.83

81.0084.1887.3590.5393.70

96.88100.05103.23106.40109.58

.247|

.252

6.27|

6.40

.020|

.035

0.50|

0.73

.007

0.18

335336337

338339340341342

343344345346347

+0.003-0.000

+0.076-0.000

+0.000-0.003

+0.000-0.076

350351352

4.9745.0995.224

126.34129.51132.69

4.4204.5454.670

112.27115.44118.62

348349350

428429

430431432433434

435436437438439

440441442443444

445446

5.3495.474

5.5995.7245.8495.9746.099

6.2246.3496.4746.7246.974

7.2247.4747.7247.9748.224

8.4748.974

135.86139.04

142.21145.39148.56151.74154.91

158.09161.26164.44170.79177.14

183.49189.84196.19202.54208.89

215.24227.94

4.5994.724

4.8494.9745.0995.2245.349

5.4745.5995.7245.9746.224

6.4746.7246.9747.2247.474

7.7248.224

116.81119.99

123.16126.34129.51132.69135.86

139.04142.21145.39151.74158.09

164.44170.79177.14183.49189.84

196.19208.89

.320|

.325

8.13|

.020|

.035

0.50|

.010

0.25

425426

427428429430431

432433434436437

438439440441443

443445

+0.004-0.000

+0.10-0.00

+0.000-0.003

+0.000-0.076

|8.26

|0.73

447448449

450451452453454

455456457458459460

9.4749.97410.474

10.97411.47411.97412.47412.974

13.47413.97414.47414.97415.47415.974

240.64253.34266.04

278.74291.44304.14316.84329.54

342.24354.94367.64380.34393.04405.74

8.7249.2249.724

10.22410.72411.22411.72412.224

12.72413.22413.72414.22414.72415.224

221.59234.29246.99

259.69272.39285.09297.79310.49

323.19335.89348.59361.29373.99386.69

446447448

449450451452453

454455456457458459

Metric sizes.

TurconR Glyd RingR

89


Installation TurconR Glyd RingR Rod, Series No. RG27 (Old Series No. S32927)

GR

D/2 max

øA

øB


Table XLIV Groove Dimensions

D h

øBRod Dia.

øAGroove Dia. G R D O-

RingD hDash

No Inch mm Inch mm Inch Inch InchDashNoNo

+0.000-0.001

+0.000-0.025

+0.001-0.000

+0.025-0.000

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

006007008009

010011012

0.1230.1540.1850.217

0.2480.3100.373

3.123.914.705.51

6.307.879.47

0.2590.2900.3210.353

0.4220.4840.547

6.587.378.158.97

10.7212.2913.89

.004

0.10

007008009010

011012013

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

013014

015016017018019

020021022023024

025026027028

0.4350.498

0.5600.6230.6850.7480.810

0.8730.9350.9981.0601.123

1.1851.2481.3101.373

11.0512.65

14.2215.8217.4019.0020.57

22.1723.7525.3526.9228.52

30.1031.7033.2734.87

0.6090.672

0.7340.7970.8590.9220.984

1.0471.1091.1721.2341.297

1.3591.4221.4841.547

15.4717.07

18.6420.2421.8223.4224.99

26.5928.1729.7731.3432.94

34.5236.1237.6939.29

.081|

.086

2.06|

2.19

.005|

.015

0.13|

0.38

.005

0.13

014015

016017018019020

021022023024025

026027028028

110111112113

0.3730.4350.4980.560

9.4711.0512.6514.22

0.6230.6850.7480.810

15.8217.4019.0020.57

↓

111112113114

D h

øBRod Dia.


RingD hDash

No Inch mm Inch mm Inch Inch InchDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

114

115116117118119

120121122123124

125126127128129

130131132133134

135136137138139

140141142

0.623

0.6850.7480.8100.8730.935

0.9981.0601.1231.1851.248

1.3101.3731.4351.4981.560

1.6231.6851.7481.8101.873

1.9301.9982.0612.1232.186

2.2482.3112.373

15.82

17.4019.0020.5722.1723.75

25.3526.9228.5230.1031.70

33.2734.8736.4538.0539.62

41.2242.8044.4045.9747.57

49.1750.7552.3553.9255.52

57.1058.7060.27

0.873

0.9350.9981.0601.1231.185

1.2481.3101.3731.4351.498

1.5601.6231.6851.7481.810

1.8731.9351.9982.0602.123

2.1862.2482.3112.3732.436

2.4982.5612.623

22.17

23.7525.3526.9228.5230.10

31.7033.2734.8736.4538.05

39.6241.2242.8044.4045.97

47.5749.1550.7552.3253.92

55.5257.1058.7060.2761.87

63.4565.0566.62

.126|

.131

3.20|

3.33

.005|

.015

0.13|

0.38

.005

0.13

115

116117118119120

121122123124125

126127128129130

131132133134135

136137138139140

141142143

Metric sizes.

TurconR Glyd RingR

90


D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

143144

145146147148149

2.4362.498

2.5612.6232.6862.7482.811

61.8763.45

65.0566.6268.2269.8071.40

2.6862.748

2.8112.8732.9362.9983.061

68.2269.80

71.4072.9774.5776.1577.75

↑ ↑ ↑

144145

146147148149150

210211212213214

215216217218219

220221222223224

225226227228229

230231232233234

235236237238239

240241242243244

245246247

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.310

1.3731.4351.4981.6231.748

1.8731.9982.1232.2482.373

2.4982.6232.7482.8732.997

3.1223.2473.3723.4973.622

3.7473.8723.9974.1224.247

4.3724.4974.622

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.27

34.8736.4538.0541.2244.40

47.5750.7553.9257.1060.27

63.4566.6269.8072.9776.12

79.3082.4785.6588.8292.00

95.1798.35101.52104.70107.87

111.05114.22117.40

1.1221.1841.2471.3091.372

1.4341.4971.5591.6221.684

1.7471.8091.8721.9972.122

2.2472.3722.4972.6222.747

2.8722.9973.1223.2473.371

3.4963.6213.7463.8713.996

4.1214.2464.3714.4964.621

4.7464.8714.996

28.5030.0731.6733.2534.85

36.4238.0239.6041.2042.77

44.3745.9547.5550.7253.90

57.0760.2563.4266.6069.77

72.9576.1279.3082.4785.62

88.8091.9795.1598.32101.50

104.67107.85111.02114.20117.37

120.55123.72126.90

.166|

.171

4.22|

4.35

.010|

.025

0.25|

0.64

.006

0.15

212213214215216

217218219220221

222222223224225

226227228229230

231232233234235

236237238239240

241242243244245

246247248

325326327328329

330331332333334

1.4981.6231.7481.8731.998

2.1232.2482.3732.4982.623

38.0541.2244.4047.5750.75

53.9257.1060.2763.4566.62

2.0522.1772.3022.4272.552

2.6772.8022.9273.0523.177

51.1255.3058.4761.6564.82

68.0071.1774.3577.5280.70

.247|

.252

6.27|

6.40

.020|

.035

0.50|

0.73

.007

0.18

326327328329330

331332333334335

D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

335336337338339

340341342343344

345346347348349

2.7482.8732.9973.1223.247

3.3723.4973.6223.7473.872

3.9974.1224.2474.3724.497

69.8072.9776.1279.3082.47

85.6588.8292.0095.1798.35

101.52104.70107.87111.05114.22

3.3023.4273.5513.6763.801

3.9264.0514.1764.3014.426

4.5514.6764.8014.9265.051

83.8787.0590.2093.3796.55

99.72102.90106.07109.25112.42

115.60118.77121.95125.12128.30

.247|

.252

6.27|

6.40

.007

0.18

336337338339340

341342343344345

346347348349350

+0.000-0.003

+0.000-0.076

+0.003-0.000

+0.076-0.000

425426427428429

430431432433434

435436437438439

440441442443444

445446

4.4974.6224.7474.8724.997

5.1225.2475.3725.4975.622

5.7475.8725.9976.2476.497

6.7476.9977.2477.4977.747

7.9978.497

114.22117.40120.57123.75126.92

130.10133.27136.45139.62142.80

145.97149.15152.32158.67165.02

171.37177.72184.07190.42196.77

203.12215.82

5.2475.3725.4975.6225.747

5.8725.9976.1226.2476.372

6.4976.6226.7476.9977.247

7.4977.7477.9978.2478.497

8.7479.247

133.27136.45139.62142.80145.97

149.15152.32155.50158.67161.85

165.02168.20171.37177.72184.07

190.42196.77203.12209.47215.82

222.17234.87

.320|

.325

8.13|

8.26

.020|

.035

0.50|

0.73

.010

0.25

427428429430431

432433434435436

437437438439440

441442443444445

445446

+0.000-0.003

+0.000-0.076

+0.004-0.000

+0.100-0.000

447448449

450451452453454

455456457458459460

8.9979.4979.997

10.49710.99711.49711.99712.497

12.99713.49713.99714.49714.99715.497

228.52241.22253.92

266.62279.32292.02304.72317.42

330.12342.82355.52368.22380.92393.62

9.74710.24710.747

11.24711.74712.24712.74713.247

13.74714.24714.74715.24715.74716.247

247.57260.27272.97

285.67298.37311.07323.77336.47

349.17361.87374.57387.27399.97412.67

447448449

450451452453454

455456457458459460

Metric sizes.

TurconR StepsealRK

91


TurconR StepsealRK*For use with MIL-Standard Rod/Bore

Description

The sealing of piston rods places the highest demands onoperational safety and environmental protection inhydraulic engineering.

Rod sealing systems must exhibit no dynamic leakage tothe atmosphere under all operating conditions and mustbe completely leak tight when the machine is in a staticcondition.

Furthermore, they should achieve a high degree ofmechanical efficiency through low friction and be easy toinstall in small grooves. Costs and service life must meetthe high expectations of the operator.

The piston rod seal, TurconR StepsealRK, developed byShamban comes closest to satisfying these idealdemands. Already in use for several decades, this seal isstill a technically outstanding seal element due to thecontinuous innovative development of the design and ofthe TurconR materials.

With the introduction of the StepsealRK it became possibleto arrange several seals one behind the other, thusallowing tandem seal configurations to be created withoutany build-up of intermediate pressure.

The single-acting seal element is made of high-gradeTurconR materials with outstanding sliding and wearresistance properties. It is installed in grooves to Shambanstandards using an O-Ring as the energizing element.

p

TurconR

StepsealRK

Figure 103 TurconR StepsealRK

* Patent-No. P 32 25 906

Method of Operation

The sealing mechanism of the StepsealRK (Figure 103)is based on the hydrodynamic properties of the seal. Thespecially formed seal edge has a steep contact pressuregradient on the high pressure side and a shallow contactpressure gradient on the low pressure side. This ensuresthat the fluid film adhering to the piston rod is returned tothe high pressure chamber on the return stroke of the rod.This prevents themicro-fluid layer, that is carried out of thehigh pressure chamber when the piston rod is extended,from causing leaks.

This return delivery property prevents the build-up ofinterstage pressure normally associated with tandem sealconfigurations (Figure 104). Interstage pressure dependson the system pressure speed, the stroke length and thegroove design.

ppiSEF

: System pressure: Inter seal pressure: Out stroke: In stroke: Lubrication film

p

F

pi

p

E

S

Figure 104 Pressure Distribution in Tandem Installation

TurconR StepsealRK

92


Design Instructions

In many applications, tandem unvented sealing systemsare required. Figure 105 shows such a tandemconfiguration utilizing the StepsealRK. The use of tandemStepsealR increases functional reliability.

p

TurconR StepsealR KTurconR

ExcluderRDC

Figure 105 TurconR StepsealRK in TandemConfiguration

In this configuration it must be noted that a sufficientlylarge space is designed between the seals to take thehydraulic fluid, as shown in Figure 123, page 104.

Depending on the application and the operating conditions,the combination of different materials offers an improvementin the sealing efficiency and the service life of the system, e.g.in hydraulic cylinders subject to high loads and under roughoperating conditions.

StepsealR K elements should always be used in combinationwith a double acting scraper to provide an optimum sealingeffect. The ExcluderR DC is well suited for suchapplications. For further details, please see ExcluderR andScraper section on page 104.

Advantages

- High static and dynamic sealing effect- Low friction, and high efficiency- Stick-slip free operation- High abrasion resistance, high operational reliability- Simple groove design- Wide range of application temperatures and highresistance to chemicals, depending on the choice ofelastomer material

- Available for all diameters up to 3000 mm (10 ft.)

Technical DataOperating pressure: up to 35 MPa (5000 psi)Speed: up to 15 m/s (49.2 ft/s) with

reciprocating movements,frequency up to 5 Hz

Temperature: -54°C to +200°C(-65°F to +390°F)(depending on elastomermaterial)

Media: Mineral oil-based hydraulic fluids,flame retardant hydraulic fluids,environmentally safe hydraulicfluids (bio-oils), water and others,depending on the elastomermaterial(see Table IV, page 16)

Gap width: The maximum permissible radialgap D/2max is shown in Table XLVand XLVI, pages 94 - 97,as a function of the operatingpressure and functional diameter.

Materials

See Table I, page 12.

TurconR StepsealRK

93


Series

The StepsealRK is available in most MIL-G-5514F/AS4716 bore or rod dimensions, and also for a numberof non-MIL spec. grooves. Please consult your Shambansales engineer for non-standard sizes.

000 Series

100 Series

200 Series

300 Series

400 Series

Scale 3:1

Figure 106 Relationship Between the ProfileCross-Sections

Ordering Example

TurconR StepsealRK,Rod Seal, Series No. RSA7

Dash No: 214

Material: T05see Table I, Page 12

Seal part includescertificate of conformance (C.C.)

Order No. RSA7 T05A

Dash No.

Series No.

214


0

Groove standard

B

0 = standard

Note: O-Rings must be ordered separately. Sizes can befound in Table XLV and Table XLVI, pages 94 - 97.

Case Story

p

TurconR

StepsealRKTurconR

HatsealRII

Figure 107 EH 101 Rotor Control TurconR HatsealRIIand TurconR StepsealRK

Problem

Limited life resulting from pressure impulsing.

Solution

A sealing system combining the StepsealRK andHatsealRII has optimized seal life.

TurconR StepsealRK

94


Installation TurconR StepsealRK Bore, Series No. PSA8 (Old Series No. S34768)

G

D/2 max

R øB

øA


Table XLV Groove Dimensions

D h

øABore Dia.


RingD hDash


gDashNoNo

+0.001-0.000

+0.025-0.000

+0.000-0.001

+0.000-0.025

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

011012

0.4220.485

10.7212.32

0.2480.311

6.307.90

.0040.10

010011

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

013014

015016017018019

020021022023024

025026027028

0.5500.613

0.6750.7380.8000.8630.925

0.9911.0531.1161.1781.241

1.3031.3661.4281.491

13.9715.57

17.1518.7520.3221.9223.50

25.1726.7528.3529.9231.52

33.1034.7036.2737.87

0.3760.439

0.5010.5640.6260.6890.751

0.8170.8790.9421.0041.067

1.1291.1921.2541.317

9.5511.15

12.7314.3315.9017.5019.08

20.7522.3323.9325.5027.10

28.6830.2831.8533.45

.081|

.086

2.06|

2.19.005|

.015

0.13|

0.38

.005

0.13

012013

014015016017018

019020021022023

024025026027

110111112113114

115116117118119

0.5500.6130.6750.7380.800

0.8630.9250.9911.0531.116

13.9715.5717.1518.7520.32

21.9223.5025.1726.7528.35

0.3000.3630.4250.4880.550

0.6130.6750.7410.8030.866

7.629.2210.8012.4013.97

15.5717.1518.8220.4022.00

.126|

.131

3.20|

3.33

109110111112113

114115116117118

Metric sizes.

D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

120121122123124

125126127128129

1.1781.2411.3031.3661.428

1.4911.5531.6161.6781.741

29.9231.5233.1034.7036.27

37.8739.4541.0542.6244.22

0.9280.9911.0531.1161.178

1.2411.3031.3661.4281.491

23.5725.1726.7528.3529.92

31.5233.1034.7036.2737.87

.005

0.13

119120121122123

124125126127128

130131132133134

135136137138139

140

1.8051.8671.9301.9922.055

2.1182.1802.2432.3052.368

2.430

45.8547.4249.0250.6052.20

53.8055.3756.9758.5560.15

61.72

1.5551.6171.6801.7421.805

1.8681.9301.9932.0552.118

2.180

39.5041.0742.6744.4545.85

47.4549.0250.6252.2053.80

55.37

.126|

.131

3.20|

3.33

.005|

.015

0.13|

0.38

.006

0.15

129130131132133

134135136137138

139

141142143144

145146147148149

2.4932.5552.6182.680

2.7432.8052.8682.9302.993

63.3264.9066.5068.07

69.6771.2572.8574.4276.02

2.2432.3052.3682.430

2.4932.5552.6182.6802.743

56.9758.5560.1561.72

63.3264.9066.5068.0769.67

.007

0.18

140141142143

144145146147148

TurconR StepsealRK

95


D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

210211212213214

215216217218219

220221222

0.9911.0531.1161.1781.241

1.3031.3661.4281.4911.553

1.6161.6781.741

25.1726.7528.3529.9231.52

33.1034.7036.2737.8739.45

41.0542.6244.22

0.6170.6790.7420.8040.867

0.9290.9921.0541.1171.179

1.2421.3041.367

15.6717.2518.8520.4222.02

23.6025.2026.7728.3729.95

31.5533.1234.72

.005

0.13

208209210211212

213214215216217

218219220

223224

225226227

1.8671.992

2.1182.2432.368

47.4250.60

53.8056.9760.15

1.4931.618

1.7441.8691.994

37.9241.10

44.3047.4750.65

.166|

171

.010|

025

.006

0.15

222223

224225226

228229

230231232233234

235236237238239

240241242243

2.4932.618

2.7432.8682.9933.1183.243

3.3683.4933.6183.7433.868

3.9934.1184.2434.368

63.3266.50

69.6772.8576.0279.2082.37

85.5588.7291.9095.0798.25

101.42104.60107.77110.95

2.1192.244

2.3692.4942.6192.7442.869

2.9943.1193.2443.3693.494

3.6193.7443.8693.994

53.8257.00

60.1763.3566.5269.7072.87

76.0579.2282.4085.5788.75

91.9295.1098.27101.45

.171

4.22|

4.35

.025

0.25|

0.64

.007

0.18

227228

229230231232233

234235236237238

239240241242

244

245246247

4.493

4.6184.7434.868

114.12

117.30120.47123.65

4.119

4.2444.3694.494

104.62

107.80110.97114.15

.008

0.20

243

244245246

325326327328329

1.8671.9922.1182.2432.368

47.4250.6053.8056.9760.15

1.3131.4381.5641.6891.814

33.3536.5339.7342.9046.08

.006

0.15

323324325326327

330331332333334

335336337338339

340

2.4932.6182.7432.8682.993

3.1183.2433.3683.4933.618

3.743

63.3266.5069.6772.8576.02

79.2082.3785.5588.7291.90

95.07

1.9392.0642.1892.3142.439

2.5642.6892.8142.9393.064

3.189

49.2552.4355.6058.7861.95

65.1368.3071.4874.6577.83

81.00

.247|

.252

6.27|

6.40

.020|

.035

0.50|

0.73

.007

0.18

328329330331332

333334335336337

338

D h

øABore Dia.


RingD hDash


gDashNoNo

+0.002-0.000

+0.05-0.00

+0.000-0.002

+0.00-0.05

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

341342343344

345

3.8683.9934.1184.243

4.368

98.25101.42104.60107.77

110.95

3.3143.4393.5643.689

3.814

84.1887.3590.5393.70

96.88 .247|

.020|

.007

0.18

339340341342

343

346347348349

4.4934.6184.7434.868

114.12117.30120.47123.65

3.9394.0644.1894.314

100.05103.23106.40109.58

|.252

6.27|

|.035

0.50|

.008

344345346347

+0.003-0.000

+0.076-0.000

+0.000-0.003

+0.000-0.076

|6.40

|0.73

008

0.20350351352

4.9745.0995.224

126.34129.51132.69

4.4204.5454.670

112.27115.44118.62

0.20348349350

428429

430431432433434

435436437438439

440441442443444

445

5.3495.474

5.5995.7245.8495.9746.099

6.2246.3496.4746.7246.974

7.2247.4747.7247.9748.224

8.474

135.86139.04

142.21145.39148.56151.74154.91

158.09161.26164.44170.79177.14

183.49189.84196.19202.54208.89

215.24

4.5994.724

4.8494.9745.0995.2245.349

5.4745.5995.7245.9746.224

6.4746.7246.9747.2247.474

7.724

116.81119.99

123.16126.34129.51132.69135.86

139.04142.21145.39151.74158.09

164.44170.79177.14183.49189.84

196.19

.320|

.325

.020|

.035

.009

0.23

425426

427428429430431

432433434436437

438439440441443

443

446 8.974 227.94 8.224 208.89.325

8.13|

8 26

.035

0.50|

0 73

.010

0.25

445

+0.004-0.000

+0.10-0.00

+0.000-0.003

+0.000-0.076

8.26 0.73

447448449

450451452453454

455456457458459

460

9.4749.97410.474

10.97411.47411.97412.47412.974

13.47413.97414.47414.97415.474

15.974

240.64253.34266.04

278.74291.44304.14316.84329.54

342.24354.94367.64380.34393.04

405.74

8.7249.2249.724

10.22410.72411.22411.72412.224

12.72413.22413.72414.22414.724

15.224

221.59234.29246.99

259.69272.39285.09297.79310.49

323.19335.89348.59361.29373.99

386.69

.011

0.28

446447448

449450451452453

454455456457458

459

Metric sizes.

TurconR StepsealRK

96


Installation TurconR StepsealRK Rod, Series No. RSA7 (Old Series No. S34767)

GR

D/2 max

øA

øB


Table XLVI Groove Dimensions

D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.001

+0.000-0.025

+0.001-0.000

+0.025-0.000

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

010011012

0.2480.3100.373

6.307.879.47

0.4220.4840.547

10.7212.2913.89

.004

0.10

011012013

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

013014

015016017018019

020021022023024

025026027028

0.4350.498

0.5600.6230.6850.7480.810

0.8730.9350.9981.0601.123

1.1851.2481.3101.373

11.0512.65

14.2215.8217.4019.0020.57

22.1723.7525.3526.9228.52

30.1031.7033.2734.87

0.6090.672

0.7340.7970.8590.9220.984

1.0471.1091.1721.2341.297

1.3591.4221.4841.547

15.4717.07

18.6420.2421.8223.4224.99

26.5928.1729.7731.3432.94

34.5236.1237.6939.29

.081|

.086

2.06|

2.19.005|

.015

0.13|

0.38

.005

0.13

014015

016017018019020

021022023024025

026027028028

110111112113114

115116117118119

0.3730.4350.4980.5600.623

0.6850.7480.8100.8730.935

9.4711.0512.6514.2215.82

17.4019.0020.5222.1723.75

0.6230.6850.7480.8100.873

0.9350.9981.0601.1231.185

15.8217.4019.0020.5722.17

23.7525.3526.9228.5230.10

.126|

.131

3.20|

3.33

111112113114115

116117118119120

D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

120121122123124

125126

0.9981.0601.1231.1851.248

1.3101.373

25.3526.9228.5230.1031.70

33.2734.87

1.2481.3101.3731.4351.498

1.5601.623

31.7033.2734.8736.4538.05

39.6241.22

.005

0.13

121122123124125

126127

127128129

130131132

1.4351.4981.560

1.6231.6851.748

36.4538.0539.62

41.2242.8044.40

1.6851.7481.810

1.8731.9351.998

42.8044.4045.97

47.5749.1550.75 .126

|.005|

.006

0.15

128129130

131132133

133134

135136137138139

140141142143144

145146147148149

1.8101.873

1.9361.9982.0612.1232.186

2.2482.3112.3732.4362.498

2.5612.6232.6862.7482.811

45.9747.57

49.1750.7552.3553.9255.52

57.1058.7060.2761.8763.45

65.0566.6268.2269.8071.40

2.0602.123

2.1862.2482.3112.3732.436

2.4982.5612.6232.6862.748

2.8112.8732.9362.9983.061

52.3253.92

55.5257.1058.7060.2761.87

63.4565.0566.6268.2269.80

71.4072.9774.5776.1577.75

|.131

3.20|

3.33

|.015

0.13|

0.38

.007

0.18

134135

136137138139140

141142143144145

146147148149150

Metric sizes.

TurconR StepsealRK

97


D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

210211212213214

215216217218219

220221222

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.310

1.3731.4351.498

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.27

34.8736.4538.05

1.1221.1841.2471.3091.372

1.4341.4971.5591.6221.684

1.7471.8091.872

28.5030.0731.6733.2534.85

36.4238.0239.6041.2042.77

44.3745.9547.55

.005

0.13

212213214215216

217218219220221

222222223

223224

1.6231.748

41.2244.40

1.9972.122

50.7253.90

.006

0.15

224225

225226227228229

230231232233234

235236237238239

240241242243244

245

1.8731.9982.1232.2482.373

2.4982.6232.7482.8732.997

3.1223.2473.3723.4973.622

3.7473.8723.9974.1224.247

4.372

47.5750.7553.9257.1060.27

63.4566.6269.8072.9776.12

79.3082.4785.6588.8292.00

95.1798.35101.52104.70107.87

111.05

2.2472.3722.4972.6222.747

2.8722.9973.1223.2473.371

3.4963.6213.7463.8713.996

4.1214.2464.3714.4964.621

4.746

57.0760.2563.4266.6069.77

72.9576.1279.3082.4785.62

88.8091.9795.1598.32101.50

104.67107.85111.02114.20117.37

120.55

.166|

.171

4.22|

4.35

.010|

.025

0.25|

0.64

.007

0.18

226227228229230

231232233234235

236237238239240

241242243244245

246

246247

4.4974.622

114.22117.40

4.8714.996

123.72126.90

.008

0.20

247248

325326327

1.4981.6231.748

38.0541.2244.40

2.0522.1772.302

51.1255.3058.47

247 020

.006

0.15

326327328

328329

330331332333334

335336

1.8731.998

2.1232.2482.3732.4982.623

2.7482.873

47.5750.75

53.9257.1060.2763.4566.62

69.8072.97

2.4272.552

2.6772.8022.9273.0523.177

3.3023.427

61.6564.82

68.0071.1774.3577.5280.70

83.8787.05

.247|

.252

6.27|

6.40

.020|

.035

0.50|

0.73

.007

0.18

329330

331332333334335

336337

D h

øBRod Dia.


RingD hDash


gDashNoNo

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

Inch/

mm

Inch/

mm

Inch/

mm

NoAS

568A

337338339

340341342343344

345346347348349

2.9973.1223.247

3.3723.4973.6223.7473.872

3.9974.1224.2474.3724.497

76.1279.3082.47

85.6588.8292.0095.1798.35

101.52104.70107.87111.05114.22

3.5513.6763.801

3.9264.0514.1764.3014.426

4.5514.6764.8014.9265.051

90.2093.3796.55

99.72102.90106.07109.25112.42

115.60118.77121.95125.12128.30

.247|

.252

6.27|

6.40

.007

0.18

338339340

341342343344345

346347348349350

+0.000-0.003

+0.000-0.076

+0.003-0.000

+0.076-0.000

425426427428429

430431432433434

435436437438

4.4974.6224.7474.8724.997

5.1225.2475.3725.4975.622

5.7475.8725.9976.247

114.22117.40120.57123.75126.92

130.10133.27136.45139.62142.80

145.97149.15152.32158.67

5.2475.3725.4975.6225.747

5.8725.9976.1226.2476.372

6.4976.6226.7476.997

133.27136.45139.62142.80145.97

149.15152.32155.50158.67161.85

165.02168.20171.37177.72

.020|

.035

0.50

.009

0.23

427428429430431

432433434435436

437437438439

439

440441442443444

445446

6.497

6.7476.9977.2477.4977.747

7.9978.497

165.02

171.37177.72184.07190.42196.77

203.12215.82

7.247

7.4977.7477.9978.2478.497

8.7479.247

184.07

190.42196.77203.12209.47215.82

222.17234.87

.320|

.325

8.13|

8.26

0.50|

0.73440

441442443444445

445446

+0.000-0.003

+0.000-0.076

+0.004-0.000

+0.100-0.000

447448449

450451452453454

455456457458459

460

8.9979.4979.997

10.49710.99711.49711.99712.497

12.99713.49713.99714.49714.997

15.497

228.52241.22253.92

266.62279.32292.02304.72317.42

330.12342.82355.52368.22380.92

393.62

9.74710.24710.747

11.24711.74712.24712.74713.247

13.74714.24714.74715.24715.747

16.247

247.57260.27272.97

285.67298.37311.07323.77336.47

349.17361.87374.57387.27399.97

412.67

.010

0.25

447448449

450451452453454

455456457458459

460

Metric sizes.

TurconR Roto Glyd RingR

98



For use with MIL-G-5514F/AS4716 Rod/Bore

DescriptionThe TurconR Roto Glyd RingR is used to seal rods, axles,rotary swivel, steering units, with rotary, helical oroscillating movement.

Notches

TurconR

Roto Glyd RingRp p

Grooves

Figure 110 TurconR Roto Glyd RingR

The Roto Glyd RingR consists of a seal ring of high-gradeTurconR material activated by an O-Ring as an elasticenergizing element.

The contact surface profile of the seal ring is specificallydesigned for use under high pressures and at low slidingspeeds.

Depending on the profile cross-section of the seal, thecontact surface has one or two continuous machinedgrooves. These have the following functions:

- Improved seal efficiency by increasing the specificsurface load pressure against the sealed surface.

- Formation of lubricant reservoir and reduction infriction.

In order to improve the pressure activation of the O-Ring,the Roto Glyd RingR has notched end faces as standard.

The geometry which holds the O-Ring has a concaveform. This increases the contact surface and prevents theseal from turning with the shaft.

Availability

A large number of sizes are available both for inch andmetric sizes.

Please inquire about sizes and availability early in yourdesign phase.

For ordering examples please consult the separate TurconR

Rotary Seals catalog or contact your Shamban salesengineer.

Application Limits

The maximum values for temperature, pressure andspeed given in this catalog have an accumulative effectand thus cannot be used simultaneously.

Seal performance is influenced by such factors as fluidlubrication and the ability of the hardware to dissipate heat.Testing should be conducted to confirm performance.

Technical DataOperatingpressure: up to 30 MPa (4350 psi)

Speed: up to 2 m/s (6.37 ft/s) continuous

Temperature: -54 °C to + 200 °C(-65°F to + 500 °F)(depending on O-Ring material)

Frictional Power

Guiding values for the frictional power can be determinedfrom the graph below. They are shown as a function of thesliding speed and operating pressure for a shaft diameter of50 mm with an oil temperature of 60° C (140° F). At highertemperatures, these application limits must be reduced.

dp' p50 x 50 mm( ) [W]Formular for other dia. :

Frictionalpow

er(W

)

Pressure (MPa)

400

300

200

100

0

0 10 20 30

0.15 m/s

0.25 m/s

1 m/s

0.5 m/s

Shaft dia. 50 mm

Figure 111 Friction for TurconR Roto Glyd RingR


99


Case Story


Figure 112 Nose Landing Gear

ProblemFriction and leakage control.

SolutionTurconR Roto Glyd RingR.

TurconR VarilipR

100


TurconR VarilipR

Description

Due to their elastomer sealing lip, standard radial shaftseals have only a limited application range with respect topressure, temperature, media and loads.

VarilipR shaft seals from Shamban extend this applicationrange by using modern TurconR materials developedspecially for rotational applications.

The VarilipR is characterized in particular by their lowfriction, which reduces heat build-up and permits higherrotary speeds, and therefore longer life.

The VarilipR shaft seal is dimensionally interchangeablewith the shaft seals to DIN 3760 and ISO 6194/1. Inchsizes are also available.

The minimal groove size required for VarilipR allows its useas a pressurized seal where the installation of a mechanicalshaft seal would not be possible due to space envelope limits.

Metal casing

Elastomer gasket

p

SealingTurconR lip

Figure 113 TurconR VarilipR, Type A

Method of Operation

In contrast to conventional shaft seals, the VarilipR sealrequires no metallic spring to energize the sealing lip.

As can be seen from Figure 113, dynamic sealing isaffected by the radial load of the sealing lip against theshaft. Static sealing is affected by a press fit of themetalliccasing in the housing bore, and by an elastomeric flatgasket between metallic housing and TurconR sealing lip.

Technical Data

Operating pressure: up to 2 MPa (290 psi)

Speed: 40 m/s (131 ft/s)

Temperature range: -60°C to +200°C(-76°F to +390°F)

Media: Practically all fluids, chemicals andgases.

Application Limits

The limits for temperature, pressure and speed given inthis catalog cannot be fully exploited at the same time.

Furthermore, the lubrication properties of the media, heatdissipation of the hardware, and the condition of the shaftsurface, affects the application limits.

The following p x v values can be used as general guidelines:For shaft diameter from 30 mm (1.2 in) to 170 mm (6.7 in):up to 3 (MPa x m/s) with good lubricationup to 1.5 (MPa x m/s) with poor lubricationup to 10 (MPa x m/s) with very good cooling

For smaller shaft diameters, the values must be reduced.

TurconR VarilipR, Type A

Type A (Fig. 114) is a one-lip seal suitable for use instandard applications up to pmax = 0.5 MPa (73 psi)where a radial shaft seal would be unable to withstand thetemperature, friction, medium or poor lubrication. Type Aallows high- speed shafts with peripheral speeds of up to40 m/s (131 ft/s) to be sealed.

Metal casing

Elastomer gasket

SealingTurconR lip

Figure 114 TurconR VarilipR, Type A

TurconR VarilipR

101


TurconR VarilipR, Type B

Type B (Fig. 115) is the preferred choice for applicationsrequiring high leakage control or where contaminatedmedia are to be sealed. This two-lip type offers greatersafety than the Type A.

Metal casing

Elastomer gasket

Support ring

SealingTurconR lip

Figure 115 TurconR VarilipR, Type B

TurconR VarilipR, Type C

The VarilipR Type C can be used for applications involvinghigher pressures for which a simple elastomer radial shaftseal can no longer be considered. Due to a reinforcementof the sealing lip, pressures of up to 2 MPa (290 psi) arepossible, e.g. as pump, shaft or rotor seals.

Metal casing

Elastomer gasket

SealingTurconR lip

Figure 116 TurconR VarilipR, Type C

Propeller drive for Zeppelin NT →

Working conditions:Temperaure: -30_C to +120_C (-22_F to 250_F)Pressure: Max. 5 barSpeed: Max. 3.4 m/sec.

Solution

Shamban TurconR VarilipR, Type D (special).

TurconR VarilipR, Type D

While Types A to C can be used to seal against pressuresfrom only one side, Type D can be subjected to pressurefrom both sides. Pressures of up to 0.1 MPa (14.5 psi) arepermissible. The separation of two different media usinga single seal is possible. The second lip can also take onthe function of a wiper or dust lip. A grease packingbetween the sealing lips is recommended.

Metal casing

Elastomer gasket

SealingTurconR lip

Figure 117 TurconR VarilipR, Type D

Availability

A large number of sizes are available both for inch andmetric sizes.

Please inquire about sizes and availability early in yourdesign phase.

For ordering examples please consult the separateVarilipR catalog or contact your Shamban sales engineer.

Case Story

Figure 118 Propeller Drive for Zeppelin NT


102


Seals for Boeing Gland Standard BACS11AA

Description

The Boeing Footseal gland/seal specification BACS11AAwas intended for use in hydraulic systems to providemaximum O-Ring life with minimum friction.

Standard two back-up groovewidth per MIL-G-5514F at outeredge of groove only

Clearance0.13 mm max.(.005 inch)

Rod

29.5_ - 30.0_

Per MIL-G-5514F

Figure 119 Groove Geometry

Application Example

TurconR

Footseal IITurconR

ExcluderRDC

P

Figure 120 B777 Flight Controls

Alternative Seal Designs

The following Shamban seals are available in modifiedform to fit the BACS11AA gland:

Footseal II Part no. RF21 (S33121)Plus SealRII Part no. RP47 (S38647)WedgpakR Part no. RA49 (S38649)HatsealRII Part no. RH53 (S34853) *)

*) Only from 100 Series and up.

TurconR

Plus SealRIIRP47

TurconR

WedgpakRRA49

TurconR

HatsealRIIRH53

TurconR

Footseal IIRF21

Figure 121 Alternative Seal Design

The alternative designs should only be used afterconsulting your Shamban sales engineer.

Footseal II

103


Footseal II *)

Description

The Footseal II rod seal was developed as animprovement to the original Footseal designed to fit theexisting Boeing BACS11AA rod gland standard.

pFootseal II

Figure 122 Footseal II

Method of Operation

Similar to other slipper seal designs, the Footseal II utilizesan O-Ring to preload the seal ring.

When the system pressure is increased, the oil film underthe seal is further reduced. Improvements in the FootsealII result in increased low pressure leakage performanceand longer life when compared to the standard Footseal.

The Footseal II also utilizes circumferential grooves toimprove leakage performance and provide longer lifesealing.

Advantages

- Good static sealing effect- Low friction- Fits BACS11AA gland standard

Technical Data


Speed: 15.0 m/s (49.2 ft/s)


Clearance: As per BACS11AA gland design

Media: Phosphate Ester,Mineral oil-based hydraulic fluids,Flame retardant hydraulic fluids,Environmentally safe hydraulic fluidsand others, depending on theelastomer material(see Table IV, page 16)

Materials


Series

The Footseal II follows the series as described in BACS11AA.

Ordering Example

Footseal II for BACS11AA gland, standard series,Series No. RF21

Dash No.: 214

Material: T99

Order No. RF21 214 A T99

Series No.

BACS11AA size



0

Groove Standard (Boeing)

Standard

B

Note: O-Ring must be ordered seperately.

*) Shamban is the only authorized manufacturer of the Footseal II

TurconR ExcluderR and Scraper

104


Selection of the Scraper Element

Scraper is a general term applied to those configurationsinstalled in hydraulic cylinders for the purpose of scrapingcontamination from rods, or excluding contaminationfrom the hydraulic system. The term scraper is generallyused in reference to those geometries that, although theyprovide a scraping function, do not prevent ingression ofsmall particles into the system. Excluders, in addition toproviding a scraping function, also minimize theingression of small particles into the system, and act as asecondary seal.

It is important to consider the scraper selection as anelement of a sealing system. Despite the proper selectionof primary and secondary seals, if a scraper appropriatefor the application is not selected, the resulting migrationof contamination into a system can cause damage to wearrings, seals, and hardware components. Scrapers thusform part of a functional system, and therefore must beviewed in combination with seals.

In order to satisfy a variety of technical and economicdemands, Shamban has developed a complete range ofscrapers with optimized geometries made fromhigh-quality materials.

An axial notch can be added to the inner scraping lip ofa double-acting scraper thereby providing a path to ventany interstage pressure to the outside while still retainingthe double-acting scraping effect. (See Fig. 128)

For systems with extreme working conditions, a springenergized scraper like the VarisealRM2S ensures a widetemperature range and optimal chemical resistance.

The final choice of scraper type and material must alsotake account of the detailed information on the individualscraper type elements.

Please do not hesitate to contact your sales engineer forfurther information on specific applications and specialtechnical questions.

Note on Ordering

All multi-element standard seals in this catalog whichcontain a proprietary elastomer part such as the Plus SealR

are always supplied as complete seal sets. The supplyincludes the seal and matching elastomer energizingelement.

O-Ring activated seals and scrapers are normallysupplied without the elastomer in order to increase theflexibility of delivery and stocking.

Exceptions to the above may be determined with yourlocal Shamban sales engineer to find the most suitablesolution.

Older designs no longer contained in this catalognaturally continue to be available. For all new applicationswe recommend the use of the types and preferred sizeslisted in this catalog.

Other combinations of TurconR materials and specialdesigns can be developed and supplied for specialapplications in intermediate sizes up to 3000 mm (10 ft)diameter, provided there is sufficient demand. Sizes over3000 mm (10 ft) are available for specific designs.

Groove Distance

When installing scrapers in conjunction with rod sealswhere interstage pressure is a concern, we recommendthe following positioning:

- Distance between seal groove and scraper groove Lshould exceed groove depth x

- Oil reservoir to collect the oil to be returned as shownin Figure 123.

ca. 3 mmL

x

øBøB+1.5 mm

Figure 123 Recommendations for Groove Distance


105


TurconR DC Scraper Ring

Description

The TurconR DC Scraper Ring replaces the old S11065Series designed for the MS33675 military gland standard.This design utilizes a dual scraping lip TurconR elementwhich is scarf cut and energized by a garter spring.

Garter Spring

TurconR Ring

Figure 124 TurconR DC-Scraper Ring

Method of Operation

This design provides a good scraping effect and alsooffers a much more improved stability under linearactuation than the old S11065 design. Two possible pathsfor the ingression of contamination exist with this design:Through the scarf cut in the TurconR scraping element,and through the garter spring. This design should not beused in environments where severe contamination exists.

Advantages- Fits the MS33675 groove + BACS34A- Low friction- Easy installation- Can be installed in closed grooves- Two scraping lips- Good stability in the groove- Excellent chemical resistance due to the stainless steelspring activation

Technical Data

Speed: 15 m/s (49.2 ft/s)Temperature range:-200°C to +200°C

(-328°F to +390°F)Media: Practically all fluids, chemicals and

gases

Materials

TurconR T05 is standard. For other materials please seeTable I, page 12.

Series

The sizes in Table XLVIII, Installation Dimensions, page109 are the recommended standard sizes. Please consultyour Shamban sales engineer.

Ordering Example

DC Scraper, standard series,Series No. WM82

MS33675 Dash No: 012CorrespondingMIL-G-5514F Dash No: 217



Order No. WM82 T05A

0 = No notch (standard)

Series No.


012S

Dash No. (MS33675)

0

Groove Standard

Ordering Example

TurconR ExcluderRDC, Series E, standard series, withoutaxial notch, Series No. WE65, see page 106.




Order No. WE65 T05A

0 = No notch (standard)

Series No.


017S

Dash No.(MS33675)

0

Groove Standard

Note: O-Ring must be ordered seperately. Sizes can befound in Table XLVIII, page 109.


106


TurconR ExcluderRDC, Series E

Description

The TurconR ExcluderRDC, Series E consists of an uncut,dual scraping lip TurconR element energized by astandard O-Ring. This design is offered as a retrofit to theMS33675 military gland standard which previouslyutilized a cut, spring energized scraper design.

TurconR ExcluderR

Figure 125 TurconR ExcluderRDC, Series E

Method of Operation

This design addresses the two contamination pathsinherent in the DC Scraper Ring design. The scarf cut iseliminated, and the garter spring is replaced with anO-Ring. In effect, these two changes create a secondarysealing element. The outboard scraping lip minimizes theingression of water and contaminates, and equallyimportant, the inboard scraping lip will contain any fluidleakage that may pass the primary seal. This fluid willprovide lubrication for the sealing system, reducingfriction and extending the life of the sealing system.

Note, for diameters smaller than 25 mm (1 inch) a splitgroove is recommended.

Shamban offers other ExcluderR designs that have betterperformance under the above mentioned conditions. Forbest performance results, the MS33675 gland standardis not recommended. Also see the section ExcluderRDC,page 107.

Please contact your Shamban sales engineer for furtherinformation.

Advantages

- Fits the MS33675 groove- Acts as a secondary seal- Two scraping lips- Good stability in the groove

Scale 3:1Dash 1/4 - 7/16, 1 - 5

Dash 6 -13

Dash 14 - 25

Dash 26 - 36

Dash 37 - 49

Dash 50 - 67 Dash 68 - 71


Technical Data

Speed: 15 m/s

Temperature range: -54°C to +200°C(-65°F to +390°F)(depending on O-Ring material)

Media: Mineral oil-based hydraulic fluids,flame retardant hydraulic fluids,environmentally safe hydraulic fluids(bio-oils), Phosphate Ester, water andothers, depending on the O-Ringmaterial (see Tab. IV, page 16)

Materials

TurconR T05 is standard. For other materials please seeTable I, page 12.

Series

The sizes in Table XLVIII, Installation Dimensions, page109 are the recommended standard sizes. Larger andsmaller cross-sections are also available, please consultyour Shamban sales engineer.


107


TurconR ExcluderRDC

Description

The design of the TurconR ExcluderRDC optimizes thedevice’s ability to exclude contamination without therestrictions and limitations of the MS33675 glanddimensions. The gland has been altered to accommodatea larger cross section O-Ring for better activation of thescraping lips.

TurconR ExcluderR

Figure 127 TurconR ExcluderRDC

Method of Operation

The wider groove, combined with a better support on thedownstream side of the ExcluderRDC, has resulted in a farmore reliable exclusion device than those utilizing theMS33675 gland standard. These changes have led towidespread acceptance of the ExcluderRDC as thestate-of-the-art exclusion device for aerospace applications.

Due to the heavy cross-section of the TurconR element onthe downstream side, the ExcluderRDC will accept asignificant back-pressure without being extruded out ofthe groove. If high back-pressure is expected, werecommend use of the ExcluderRDC with the axial notch.

Axial notch

Figure 128 Axial Notch (see page 105)

Open/split grooves are recommended for diameterssmaller than 35 mm (1.4 in).

Advantages

- Very efficient scraping lips- Capable of scraping light ice covering rods- Very stable and reliable design- Acts as a secondary seal.

Technical Data

Speed: 15 m/s (49 ft/s)

Temperature range: -54°C to +260°C(-65°F to +500°F)(depending on O-Ring material)

Media: Mineral oil-based hydraulic fluids,flame retardant hydraulic fluids,environmentally safe hydraulic fluids(bio-oils), Phosphate Ester, water andothers, depending on the O-Ringmaterial (see Table IV, page 16)

Materials

TurconR T05 is standard. For other materials, please seeTable I, page 12.

Design and Installation Recommendations

Scrapers and excluders can be installed either in split or inclosed grooves, depending upon cross-section and roddiameter. See below for our recommendations:

Table XLVII Installation in Closed Grooves

MS33675 Size P/N Rod

1/4 B100

5/16 B200 open grooves3/8 B300

open groovesrecommended

7/16 B400

001 -∞ B001 closed groovespossible

Ordering Example

TurconR ExcluderRDC for MS33675, rod

Dash size.: 5/16

Part No.: WE250B200AT05NG


108


Series

The sizes in Table XLVIII, Installation Dimensions, page109 are the recommended standard sizes. Larger andsmaller cross sections are also available. Please consultyour Shamban sales engineer. Please note that theExcluderR size follows the dash numbering system as perMS33675 andmust be ordered with this dashNo. and notthe MIL-G-5514F/AS4716 dash No.

Dash 1/4 - 7/16

Dash 1 - 25

Dash 26 - 71

Scale 3:1


Ordering Example

TurconR ExcluderRDC, standard series, without axial notch,Series No. WE25



Seal part includes Certificate ofconformance (C.C.)

Order No. WE25 T05A

0 = No Notch (standard)N = Notch

Series No.


005B

Dash No. (MS33675)

0

Groove Standard

Ordering Example

TurconR ExcluderRDC, standard series, with axial notchSeries No. WE25 from Table XLVIII, page 109

MS 33675 Dash No: 005CorrespondingMIL-G-5514F Dash No: 210



Order No. WE25 T05A

0 = No Notch (standard)N = Notch

Series No.


005B

Dash No. (MS33675)

N

Groove Standard

DC Excluder, light series w, smaller cross section isavailable. Consult Your Shamban Sales Engineer.

Notes:

TurconR T05 is the standard material for theExcluderRDC due to its flexible properties. Othermaterials may be chosen. For example TurconR T42 ispreferred to scrape sticky deposits off the rod.

For the WE25 series, both an over- and under-sizeExcluderRDC is available for hard and light workingconditions. Please contact your Shamban salesengineer for details.

Please note that O-Rings must be orderedseparately ! Sizes can be found in Table XLVIII, page 109.Without the O-Ring the ExcluderRDC has unlimitedshelf life.

ExcluderR to fit larger and smaller grooves thanmentioned in Table XLVIII are available upon request.


109


Installation TurconR ExcluderRDC, Series No. WE25 (Old Series No. S32925),TurconR ExcluderRDC, Series E, Series No. WE65 (Old Series No S33865) andTurconR DC Scraper, Series No. WM82 (Old Series No. S34382)

G1 0.4 mm0.015 inch

45_

min.G2

øDøA2

øB

(WE25_B) (WE65_S)øA1

øB

F/2

Figure 130 Installation DrawingTable XLVIII Groove DimensionsRod Size Rod Dia. øB Shamban Size WE25 MS33675, WE65 and WM82

MS-3367

Inch mm Groove Dia.

øA1

Width

G1

Dia.Cl.F

(max)

O-Ringsize

AS568A

Groove Dia.

øA2

Dia.Clearance

øD

Width

G2

O-RingsizeonlyWE65

675

Inch mm Inch/

mm

Inch/

mm

568AInch mm Inch mm Inch

/mm

WE65

AS568A

+0.000-0.001

+0.00-0.03

+0.002-0.000

+0.05-0.00

144

+0.004-0.000

+0.10-0.00

+0.005-0.000

+0.13-0.00

1/45/163/87/16

0.2480.3100.3730.435

6.307.879.4711.05

0.4360.4980.5610.623

11.0712.6514.2515.82

.144+.005/-0

|3.66

+0.13/-0

011012013014

0.5100.5720.6360.697

12.9514.5316.1517.70

0.3980.4600.5230.585

10.1111.6813.2814.86

012013014015

+0.000-0.002

+0.00-0.05

001002003004

0.4980.5600.6230.685

12.6514.2215.8217.40

0.7660.8280.8910.953

19.4621.0322.6324.21

113114115116

0.7600.8230.8850.948

19.3020.9022.4824.08

0.6470.7100.7720.834

16.4318.0319.6121.18

016017018019

005006007008009

010011012013014

015016

0.7480.8100.8730.9350.998

1.0601.1231.1851.2481.310

1.3731.435

19.0020.5722.1723.7525.35

26.9228.5230.1031.7033.27

34.8736.45

1.0161.0781.1411.2031.266

1.3281.3911.4531.5161.578

1.6411.703

25.8127.3828.9830.5632.16

33.7335.3336.9138.5140.08

41.6843.26

.195+.005/-0

|4.95

+0.13/-0

.042|

1.07

117118119120121

122123124125126

127128

1.0101.0861.1481.2101.273

1.3351.3981.4601.5231.614

1.6771.739

25.6527.5829.1630.7332.33

33.9135.5137.0838.6841.00

42.6044.17

0.8970.9491.0121.0741.136

1.1991.2621.3241.3861.480

1.5421.605

22.7824.1025.7027.2828.85

30.4532.0533.6335.2037.59

39.1740.77

.104+.005/-0

|2.64

+0.13/-0

020021022023024

025026027028029

029030

017018019

1.4981.6231.748

38.0541.2244.40

1.7661.8912.016

44.8648.0351.21

129131133

1.8021.9272.052

45.7748.9552.12

1.6681.7931.918

42.3745.5448.72

030031032

Metric sizes.


110


Rod Size Rod Dia. øB Shamban Size WE25 MS33675, WE65 and WM82

MS3367

Inch mm Groove Dia.

øA1

Width

G1

Dia.Cl., F(max)

O-Ringsize

AS

Groove Dia.

øA2

Dia.Clearance

øD

Width

G2

O-RingsizeonlyWE65

675

Inch mm Inch/

mm

Inch/

mm

AS568A Inch mm Inch mm Inch

/mm

yWE65

AS568A

+0.000-0.002

+0.00-0.05

+0.002-0.000

+0.05-0.00

+0.004-0.000

+0.10-0.00

+0.005-0.000

+0.13-0.00

020021022023024025

1.8731.9982.1232.2482.3732.498

47.5750.7553.9257.1060.2763.45

2.1412.2662.3912.5162.6412.766

54.3857.5660.7363.9167.0870.26

.195+.005/-0

|4.95

+0.13/-0

135137139141143145

2.1772.3022.4272.5522.6772.802

55.3058.4761.6564.8268.0071.17

2.0432.1782.3032.4282.5532.678

51.8955.3258.5061.6764.8568.02

.104+.005/-0

|2.64

+0.13/-0

033034035036037038

026027028029030

031032033034035036

2.6232.7482.8732.9973.122

3.2473.3723.4973.6223.7473.872

66.6269.8072.9776.1279.30

82.4785.6588.8292.0095.1798.35

2.9713.0963.2213.3453.470

3.5953.7203.8453.9704.0954.220

75.4678.6481.8184.9688.14

91.3194.4997.66100.84104.01107.19

232233234235236

237238239240241242

2.9893.1143.2393.3643.489

3.6143.7393.8643.9894.1144.239

75.9279.1082.2785.4588.62

91.8094.9798.15101.32104.50107.67

2.8342.9593.0843.2093.334

3.4593.5843.7093.8343.9594.084

71.9875.1678.3381.5184.68

87.8691.0394.2197.38100.56103.73

.119+.005/-0

|3.02

+0.13/-0

039040041041042

042043043044044045

037038039040

3.9974.1224.2474.372

101.52104.70107.87111.05

4.3454.4704.5954.720

110.36113.54116.71119.89

243244245246

4.4274.5524.6774.802

112.45115.62118.80121.97

4.2404.3654.4904.615

107.70110.87114.05117.22

156156157157

+0.000-0.003

+0.00-0.08

+0.003-0.000

+0.08-0.00

+0.005-0.000

+0.13-0.00

041042043044045

046047048049

4.4974.6224.7474.8724.997

5.1225.2475.3725.497

114.22117.40120.57123.75126.92

130.10133.27136.45139.62

4.8454.9705.0955.2205.345

5.4705.5955.7205.845

123.06126.24129.41132.59135.76

138.94142.11145.29148.46

.240+.005/-0

|6.10

+0.13/-0

.042|

1.07

247248249250251

252253254255

4.9275.0525.1775.3025.427

5.5525.6775.8025.927

125.15128.32131.50134.67137.85

141.02144.20147.37150.55

4.7404.8654.9905.1155.240

5.3655.4905.6155.740

120.40123.57126.75129.92133.10

136.27139.45142.62145.80

.135+.005/-0

|3.43

+0.13/-0

158158159159160

160161161162

050051052053054

055056057058059

5.6225.7475.8725.9976.247

6.4976.7476.9977.2477.497

142.80145.97149.15152.32158.67

165.02171.37177.72184.07190.42

5.9706.0956.2206.3456.595

6.8457.0957.3457.5957.845

151.64154.81157.99161.16167.51

173.86180.21186.56192.91199.26

256257258258259

260261262263264

6.1146.2396.3646.4896.739

6.9897.2397.4897.7397.989

155.30158.47161.65164.82171.17

177.52183.87190.22196.57202.92

5.8966.0226.1466.2726.522

6.7727.0227.2727.5227.772

149.76152.96156.11159.31165.66

172.01178.36184.71191.82197.41

.151+.005/-0

|3.84

162163163164165

166167168169170

060 7.747 196.77 8.095 205.61 265 8.239 209.27 8.022 203.763.84

+0.13/-0 171+0.005-0.000

+0.13-0.00

061062063064065

066067

7.9978.4978.9979.4979.997

10.49710.997

203.12215.82228.52241.22253.92

266.62279.32

8.3458.8459.3459.84510.345

10.84511.345

211.96224.66237.36250.06262.76

275.46288.16

266268270272274

275276

8.4898.9899.4899.98910.489

10.98911.489

215.62228.32241.02253.72266.42

279.12291.82

8.2728.7729.2729.77210.272

10.77211.272

210.11222.81235.51248.21260.91

273.61286.31

172174176178

068069070071

11.49711.99712.49712.997

292.02304.72317.42330.12

11.84512.34512.84513.345

300.86313.56326.26338.96

277278278279

11.98912.48912.98913.489

304.52317.22329.92342.62

11.77212.27212.77213.272

299.01311.71324.41337.11

.166+.005/-0

|4.22

+0.13/-0

278278279279

Metric sizes.

TurconR VarisealRM2S

111


TurconR VarisealRM2S Scraper

Description

The TurconR VarisealRM2S is a single-acting seal/scraperconsisting of a U-shaped seal jacket and a V-shapedcorrosion resistant spring.

The most unique characteristic of the VarisealRM2S is thenewly developed asymmetric seal profile, where thedynamic lip has an optimized heavy profile, and offerslong service life and a good scraping effect, even in highlyviscous media.

TurconR Ring

V-shaped spring

Figure 131 TurconR VarisealRM2S

The VarisealRM2S can be sterilized and is available in aspecial Hi-Clean version where the spring cavity is filledwith silicone to prevent contaminants from beingentrapped in the seal. This design also works well inapplications involving mud, slurries, ice, and prevents gritfrom packing into the seal cavity and inhibiting the springaction.

VarisealRM2S can be installed in grooves to MIL-G-5514F/AS4716 and ISO 3771. The seal can only be installed toa limited extent in closed grooves. Installation instructions,see page 75. Utilize Table XXIX and Table XXXI.

Advantages

- Excellent scraping effect

- Reciprocating and turning movement

- Low friction characteristics for precise control

- High abrasion resistance and dimensional stability

- Can handle rapid changes in temperature

- Suitable for use in a variety of caustic media

- Can be sterilized

- Unlimited shelf life.

Technical Data

Speed: Reciprocating up to 15 m/s (49.8 ft.)Turning up to 0.5 m/s (1.65 ft/s)

Temperature: -70°C to +260°C(-94°F to +500°F)

For specific applications at lowertemperatures, please ask yourShamban sales engineer

Media: Typically fluids with medium to highviscocity and media containinghard particles

Materials

For spring and material selection, see Table XXIV, page 70.


112


Installation VarisealRM2S Scraper, Series No. RVC, Rod

L1

r1X

D/2

L1

r1

D/2

RVC

Stepped groove Split grooveøA

øB

øA

øB


Table XLIX Groove Dimensions (metric)

SeriesNo.

Rod DiameterøB h9

GrooveDiameter

GrooveWidth

Radius Step2)

HeightRadial Clearance

D/2 max.*

RecommendedRange

Extended1)Range øA H9 L1 +0.2 r1 X

<2 MPa(300 psi)

<10 MPa(1500 psi)

<21 MPa(3000 psi)

<40 MPa(5800 psi)

RVC0 3.0 - 9.9 3.0 - 40.03) øB + 2.9 2.4 0.4 0.4 0.20 0.10 0.08 0.05

RVC1 10.0 - 19.9 6.0 - 200.03) øB + 4.5 3.6 0.4 0.6 0.25 0.15 0.10 0.07

RVC2 20.0 - 39.9 10.0 - 400.03) øB + 6.2 4.8 0.6 0.7 0.35 0.20 0.15 0.08

RVC3 40.0 - 119.9 20.0 - 700.03) øB + 9.4 7.1 0.8 0.8 0.50 0.25 0.20 0.10

RVC4 120.0 - 999.9 35.0 - 999.93) øB + 12.2 9.5 0.8 0.9 0.60 0.30 0.25 0.12

* At pressures > 40 MPa: D/2 max. use H8/f81) Available on request2) Maximum X = 0.02 x øB

3) For diameters larger than ”Recommended Range”: the tolerance on øAis changed from H9 to H8. For pressure above 40 MPa (5000 psi),please contact your Shamban sales engineer.

Ordering ExampleTurconR VarisealRM2S, Series RVC3.Rod diameter: øB = 80.0 mmPart No: RVC300800

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers areappended to the Part No. Together these form the ordernumber.The order number for all intermediate sizes not shown inTable XLIX can be determined by following the exampleopposite.

0800 T40 SRVC3


Series No.

Order No.


Rod diameter x 10Seal part includesCertificate of conformance (C.C.)

D

Hi-Clean - option

A

Standard

0


113


Installation VarisealRM2S Scraper, Series No. PVC, Bore

L1 r1

Y

D/2

L1r1

PVC

Stepped groove Split groove

D/2

øA

øB

øA

øB


Table L Groove Dimensions (metric)

SeriesNo.

Bore DiameterøA H9

GrooveDiameter

GrooveWidth Radius Step2)

HeightRadial Clearance

D/2 max*

RecommendedRange

Extended1)

Range øB h9 L1 +0.2 r1 Y<2 MPa(300 psi)

<10 MPa(1500 psi)

<21 MPa(3000 psi)

<40 MPa(5800 psi)

PVC0 6.0 - 13.9 6.0 - 40.03) øA-2.9 2.4 0.4 0.4 0.20 0.10 0.08 0.05

PVC1 14.0 - 24.9 10.0 - 200.03) øA-4.5 3.6 0.4 0.6 0.25 0.15 0.10 0.07

PVC2 25.0 - 45.9 16.0 - 400.03) øA-6.2 4.8 0.6 0.7 0.35 0.20 0.15 0.08

PVC3 46.0 - 124.9 28.0 - 700.03) øA-9.4 7.1 0.8 0.8 0.50 0.25 0.20 0.10

PVC4 125.0 - 999.9 45.0 - 999.93) øA-12.2 9.5 0.8 0.9 0.60 0.30 0.25 0.12

*At pressures > 40 MPa D/2max use H8/f81) Available on request.2) Maximum Y = 0.035 x øA

3) For diameters larger than ”Recommended Range”: the tolerance onøB is changed fromh9 to h8. For pressure above 40MPa (5000 PSI),please contact your Shamban sales engineer.

Ordering exampleTurconR VarisealRM2S, Series PVC3.Bore diameter: øA = 80.0 mmPart No.: PVC300800

Select the materials from Table I, page 12 and Table XXIV,page 70. The corresponding code numbers areappended to the Part No. Together these form the ordernumber.For all intermediate sizes not shown in Table L, the OrderNo. can be determined from the example shown opposite.

0800 T40 SPVC3


Series No.

Order No.


Bore diameter x 10Seal part includesCertificate of conformance (C.C.)

D

Hi-Clean - option

A

Standard

0

TurciteR SlydringR / LuytexR SlydringR

114



The purpose of the rings is to guide the piston and rod ofa working cylinder and to absorb the transverse forceswhich may occur. Metallic contact between the slidingparts of the cylinder must be prevented. Non-metallicSlydringR offer major benefits compared with thetraditional metallic bearings:

- Cost efficient.

- High load bearing capacity.

- Eliminates local stress concentrations.

- Very wear-resistant, long service life.

- Eliminates galling.

- Good friction characteristics.

- Damping of mechanical vibrations.

- Protection of the seal against ”dieseling”.

- Eliminates hydrodynamic problems in the guide system.

- Easy installation.

- Low maintenance costs.

Designs

Three different types of SlydringR materials are availabledepending upon application demands:

- Highly wear-resistant, low friction, specially modifiedTurciteRmaterials for low to medium loads - SlydringR.

- LuytexR fabric composite materials for high loads andtransverse forces - SlydringR.

- ZurconR. High modulus thermoplastics for high loads,temperature with long service life.

SlydringR for Aerospace Applications

In the past, due to the imposed limitations ofMIL-G-5514F/AS4716 and the minimum requiredclearance gaps necessary to minimize seal extrusion,SlydringR use has been limited. The use of SlydringR oftenrequires larger clearance gaps.

With the trend toward higher hydraulic system pressures,resulting in higher sideloads, the use of SlydringR becomesnecessary in order to protect primary seals and hardware.

Since no industry standard has been developed forSlydringR, we have a wide range of sizes available inpreformed rings.

SlydringR are provided as cut rings with an angle cut asstandard. For special applications, other cut types areavailable; consult your Shamban sales engineer.

Table LI Selection Criteria for TurciteR SlydringR / LuytexR SlydringR

Material Filler Technical Data Application

MaterialD i i

Temperature Velocitya e aDesignation

e pe a u e e oc y

C_/F_ m/s(ft/s)

TurconR T08 High filled bronze

TurconR T10 2) Carbon / Graphite -80 to +200(-112 to +392)

15(99) Standard bearing for low to medium load

TurconR T29 Carbon fiber

( ) ( )

LuytexR C380 Polyesther resin + PTFE -60 to +130(-76 to +266)

1(3.3) High sideload 1)

ZurconR Z43High modulus thermoplasticand PTFE + Carbon

-80 to +200(-112 to +392)

15(99)

High speed, temperature and pressure.Excellent for PFC

1) Consult your Shamban sales engineer prior to applying LuytexR.2) TurconR T11, used in North America is equivalent to TurconR T10.


115


Installation Recommendations, TurciteR SlydringR / LuytexR SlydringR for PistonSeries No. GP0 (Old Series No. S34545, S34546 and S34547)

W

G

D/2

R max.

øA

øF


Table LII Groove Dimensions

SeriesNo.

BoreDiameter

GrooveDiameter

GrooveWidth

RadialClearance

Inch mm Inch mm Inch mm Inch mm

øA øA øF h8 øF h8 G +0.010 G +0.25 D/2max. D/2max.

GP02X 0.235 - 1.491 5.97 - 37.87 øA - 0.064 øA - 1.63 0.135 3.43 0.007 0.18

GP04X 0.235 - 1.491 5.97 - 37.87 øA - 0.064 øA - 1.63 0.260 6.60 0.007 0.18

GP06X 0.235 - 1.491 5.97 - 37.87 øA - 0.064 øA - 1.63 0.385 9.78 0.007 0.18

GP08X 0.235 - 1.491 5.97 - 37.87 øA - 0.064 øA - 1.63 0.510 12.95 0.007 0.18

GP02W 0.550 - 4.468 13.97 - 113.49 øA - 0.126 øA - 3.20 0.135 3.43 0.009 0.23

GP04W 0.550 - 4.468 13.97 - 113.49 øA - 0.126 øA - 3.20 0.260 6.60 0.009 0.23

GP06W 0.550 - 4.468 13.97 - 113.49 øA - 0.126 øA - 3.20 0.385 9.78 0.009 0.23

GP08W 0.550 - 4.468 13.97 - 113.49 øA - 0.126 øA - 3.20 0.510 12.95 0.009 0.23

GP02Y 2.993 - 10.474 76.02 - 266.04 øA - 0.188 øA - 4.78 0.135 3.43 0.011 0.28

GP04Y 2.993 - 10.474 76.02 - 266.04 øA - 0.188 øA - 4.78 0.260 6.60 0.011 0.28

GP06Y 2.993 - 10.474 76.02 - 266.04 øA - 0.188 øA - 4.78 0.385 9.78 0.011 0.28

GP08Y 2.993 - 10.474 76.02 - 266.04 øA - 0.188 øA - 4.78 0.510 12.95 0.011 0.28

Metric sizes.

Table LIII Recommended Radius for Groove Dia.

Bore Diameter Rmax.

Inch mm Inch mm

< 9.842 < 250.0 0.008 0.2

> 9.842 > 250.0 0.015 0.4

Metric sizes.


116


Installation Recommendations, TurciteR SlydringR / LuytexR SlydringR for RodSeries No. GR0 (Old Series No. S34548, S34549 and S34550)

R max.

W

D/2

G

øEøB


Table LIV Groove Dimensions

SeriesNo.

RodDiameter

GrooveDiameter

GrooveWidth

RadialClearance

Inch mm Inch mm Inch mm Inch mm

øB øB øE h8 øE h8 G +0.010 G +0.25 D/2max. D/2max.

GR02X 0.123 - 1.498 3.12 - 38.05 øB + 0.064 øB + 1.63 0.135 3.43 0.007 0.18

GR04X 0.123 - 1.498 3.12 - 38.05 øB + 0.064 øB + 1.63 0.260 6.60 0.007 0.18

GR06X 0.123 - 1.498 3.12 - 38.05 øB + 0.064 øB + 1.63 0.385 9.78 0.007 0.18

GR08X 0.123 - 1.498 3.12 - 38.05 øB + 0.064 øB + 1.63 0.510 12.95 0.007 0.18

GR02W 0.373 - 4.497 9.47 - 114.22 øB + 0.126 øB + 3.20 0.135 3.43 0.009 0.23

GR04W 0.373 - 4.497 9.47 - 114.22 øB + 0.126 øB + 3.20 0.260 6.60 0.009 0.23

GR06W 0.373 - 4.497 9.47 - 114.22 øB + 0.126 øB + 3.20 0.385 9.78 0.009 0.23

GR08W 0.373 - 4.497 9.47 - 114.22 øB + 0.126 øB + 3.20 0.510 12.95 0.009 0.23

GR02Y 2.997 - 9.997 76.12 - 253.92 øB + 0.188 øB + 4.78 0.135 3.43 0.011 0.28

GR04Y 2.997 - 9.997 76.12 - 253.92 øB + 0.188 øB + 4.78 0.260 6.60 0.011 0.28

GR06Y 2.997 - 9.997 76.12 - 253.92 øB + 0.188 øB + 4.78 0.385 9.78 0.011 0.28

GR08Y 2.997 - 9.997 76.12 - 253.92 øB + 0.188 øB + 4.78 0.510 12.95 0.011 0.28

Metric sizes.

Table LV Recommended Radius for Groove Dia.

Bore Diameter Rmax.

Inch mm Inch mm

< 9.842 < 250.0 0.008 0.2

> 9.842 > 250.0 0.015 0.4

Metric sizes.


117


Ordering example - Piston

SlydringR for bore diameter A: 91.90 mm (3.618 inch)Dash No. per MIL-G-5514F: -339Series GP0 from Table LII, page 115

Groove width: 9.78 mm (0.385 inch)Groove depth: 2.39 mm (0.094 inch)

Material: TurconR T10see Table I, page 12.

Order No. GP T10*AB339Y06



Dash No.

Groove Depth

Groove Width

Series No.

* TurconR T11, used in North America is equivalent toTurconR T10

Ordering example - Rod

SlydringR for rod diameter B: 38.05 mm (1.498 inch)Dash No. per MIL-G-5514F: -325Series GR0 from Table LIV, page 116

Groove width: 6.60 mm (0.260 inch)Groove depth: 1.60 mm (0.063 inch)

Material: TurconR T29see Table I, page 12

Order No. GR T29AB325W04



Dash No.

Groove Depth

Groove Width

Series No.

Note: SlydringR in material LuytexR and ZurconR willuse special Part No. due to tolerance and temperaturevariations. For other sizes, (width/depth) and special PartNo. consult your Shamban sales engineer.

TurconR WedgpakR Face Seal

118



Description

The TurconRWedgpakR Face Seal is an adaptation of thetraditional WedgpakR design to maximize performancein face seal applications. It utilizes a triangular shapedTurconR delta ring energized by a uniquely shapedelastomer designed to maximize extrusion protectionunder abnormal clearance gap conditions.

TurconR delta ring

elastomer

p

Figure 136 TurconR WedgpakR Face Seal

Method of OperationIt is typical for face seal applications to experience impulsepressures and therefore abnormally high ”breathing”conditions in mating hardware. The TurconR delta ringuses the full depth of the seal groove to optimize theamount of material available and maximize extrusionprotection under worst case conditions. The specialshaped geometry of the elastomer provides a preloadunder low pressure conditions, and constantly forces theTurconR delta ring up against the clearance gap toprevent extrusion of the elastomer.

Advantages

- Excellent static sealing effect- Good extrusion protection- Easy installation

Technical Data


Speed: Not applicable


Clearance: Can exceed recommendations ofMIL-G-5514F/AS4716 dependentupon the combination of pressuresand clearance gaps


MaterialsSee Table I, page 12 and Table III, page 15.

SeriesThe WedgpakR Face Seal follows the series as described infollowing pages. Special sizes are available upon request.Please contact your Shamban sales engineer.

000 Series

100 Series

200 Series

300 Series

Scale 3:1


Case Story

TurconR

WedgpakR Face Seal

Figure 138 Engine Driven Hydraulic Pump Flange SealRetrofit

Problem

Operators of wide bodied aircraft have experiencedleakage of engine driven pumps, between adaptor blockand housing.

Solution

TurconR WedgpakR Face Seal eliminated leakagefailures.


119


Installation TurconR WedgpakR Face Seal, Series No. DW00 (Old Series No. S38000), Internal

øAG

R

L


Table LVI Groove Dimensions

D h

øADia.

GGroove Width.

LGroove Depth

R

DashNo Inch mm Inch mm Inch mm InchNo

+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

008009010

011012013014015

016017018019020

021022023024025

026027028

0.3160.3480.379

0.4410.5040.5660.6290.691

0.7540.8160.8790.9411.004

1.0661.1291.1911.2541.316

1.3791.4411.504

8.038.949.63

11.2012.8014.3815.9817.55

19.1520.7322.3323.9025.50

27.0828.6830.2531.8533.43

35.0336.6038.20

0.094 2.39 0.057 1.45

0.005|

0.015

0.13|

0.38

110111112113114115

116117118119120

0.5680.6300.6930.7550.8180.880

0.9431.0051.0681.1301.193

14.4316.0017.6019.1820.7822.35

23.9525.5327.1328.7030.30

0.141 3.58 0.090 2.29

D h

øADia.

GGroove Width.

LGroove Depth

R


+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

121122123124125

126127128129130

131132133134135

1.2551.3181.3801.4431.505

1.5681.6301.6931.7551.818

1.8801.9432.0052.0682.131

31.1233.4835.0536.6538.23

39.8341.4043.0044.5846.18

47.7549.3550.8352.5354.13

0.141 3.58 0.090 2.29

0.005|

0.015

0.13|

0.38

210211212213214215

216217218219220

221222223224225

226

1.0121.0741.1371.1991.2621.324

1.3871.4491.5121.5741.637

1.6991.7621.8872.0122.137

2.262

25.7027.2828.8830.4532.0533.63

35.2336.8038.4039.9841.58

43.1544.7547.9351.1054.28

57.45

0.188 4.78 0.122 3.10

0.010|

0.025

0.25|

0.63

Metric sizes.


120


D h

øADia.

GGroove Width.

LGroove Depth R


+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

227228229230

231232233234235

236237238239240

241242243244245

246247

2.3872.5122.6372.762

2.8873.0123.1373.2623.387

3.5123.6373.7623.8874.012

4.1374.2624.3874.5124.637

4.7624.887

60.6363.8066.9870.15

73.3376.5079.6882.8586.03

89.2089.8495.5598.73101.90

105.08108.25111.43114.60117.78

120.95124.13

0.188 4.76 0.122 3.10

0.010|

0.025

0.25|

0.63

325326327328329330

331332333334335

336337338339340

341342343344345

346347348349

1.8952.0202.1452.2702.3952.520

2.6452.7702.8953.0203.145

3.2703.3953.5203.6453.770

3.8954.0204.1454.2704.395

4.5204.6454.7704.895

48.1351.3154.4857.6660.8364.01

67.1870.3673.5376.7179.88

83.0686.2389.4192.5895.76

98.93102.11105.28108.46111.63

114.81117.98121.16124.33

0.281 7.14 0.187 4.75

0.020|

0.035

0.51|

0.89

Metric sizes.

Ordering Example

WedgpakR Face Seal for internal useSeries No. DW00

Dash No: 115

Material: T29 EH

Order No. DW00 115 A T29 EH

Series No.

Shamban gland specification




0

0 = Standard

Groove standard

B


121


Installation TurconR WedgpakR Face Seal, Series No. DW01 (Old Series No. S38001), External

øB G

R

L


Table LVII Groove Dimensions

D h

øBDia.

GGroove Width.

LGroove Depth R


+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

008009010

011012013014015

016017018019020

021022023024025

026027028

0.1760.2080.239

0.3010.3640.4260.4890.551

0.6140.6760.7390.8010.864

0.9260.9891.0511.1141.176

1.2391.3011.364

4.475.286.07

7.659.2510.8212.4214.00

15.6017.1718.7720.3521.95

23.5225.1226.7028.3029.87

31.4733.0534.65

0.094 2.39 0.057 1.45

0.005|

0.015

0.13|

0.38

110111112113114115

116117118119120

0.3620.4240.4870.5490.6120.674

0.7370.7990.8620.9240.987

9.1910.7712.3713.9415.5417.12

18.7220.2921.8923.4725.07

0.141 3.58 0.090 2.29

D h

øBDia.

GGroove Width.

LGroove Depth R


+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

121122123124125

126127128129130

131132133134135

1.0491.1121.1741.2371.299

1.3621.4241.4871.5491.612

1.6741.7371.7991.8621.925

26.6428.2429.8231.4232.99

34.5936.1737.7739.3440.94

42.5244.1245.6947.2948.90

0.141 3.58 0.090 2.29

0.005|

0.015

0.13|

0.38

210211212213214215

216217218219220

221222223224225

226

0.7340.7960.8590.9210.9841.046

1.1091.1711.2341.2961.359

1.4211.4841.6091.7341.859

1.984

18.6420.2221.8223.3924.9926.57

28.1729.7431.3432.9234.52

36.0937.6940.8744.0447.22

50.39

0.188 4.76 0.122 3.10

0.010|

0.025

0.25|

0.63

Metric sizes.


122


D h

øBDia.

GGroove Width.

LGroove Depth R


+0.000-0.005

+0.00-0.13

+0.010-0.000

+0.25-0.00 ±0.001 ±0.03

Inch/

mm

227228229230

231232233234235

236237238239240

241242243244245

246247

2.1092.2342.3592.484

2.6092.7342.8592.9843.109

3.2343.3593.4843.6093.734

3.8593.9844.1094.2344.359

4.4844.609

53.5756.7459.9263.09

66.2769.4472.6275.7978.97

82.1485.3288.4991.6794.84

98.02101.19104.37107.54110.72

113.89117.07

0.188 4.76 0.122 3.10

0.010|

0.025

0.25|

0.63

325326327328329330

331332333334335

336337338339340

341342343344345

346347348349

1.4751.6001.7251.8501.9752.100

2.2252.3502.4752.6002.725

2.8502.9753.1003.2253.350

3.4753.6003.7253.8503.975

4.1004.2254.3504.475

37.4740.6443.8246.9950.1753.34

56.5259.6962.8766.0469.22

72.3975.5778.7481.9285.09

88.2791.4494.6297.79100.97

104.14107.32110.49113.67

0.281 7.14 0.187 4.75

0.020|

0.035

0.51|

0.89

Metric sizes.

Ordering Example

WedgpakR Face Seal for external useSeries No. DW01

Dash No: 236

Material: T05 NG

Order No. DW01 236 A T05 NG

Series No.

Shamban gland specification




0

0 = Standard

Groove standard

B


123


Installation Instructions

General Comments

After choosing the right seal design, the second mostimportant issue is to install the seal without damaging it.

The following hardware characteristics should beconsidered at an early hardware design stage in order toensure damage free installation of seals.

Rod lead inchamfer

Seal groove radiusRounded to 0.3 mm max.

Bevelled ports Bore lead-in chamfer

Installationpath free fromnicks andburrs

Installation tool to cover thread etc.Preferably made of plastic

Figure 141 Methods of Hardware Design to Prevent Seal Damage

- The installation path should be kept free of nicks, burrs,scratches, or any sharp edge that could damage theseal.

- Any tool used to install seals should be free of sharpedges. Screwdrivers are especially notorious fordamaging sealing lips and should not be used tohandle the seals.

- Tools made out of hard plasticlike Delrin or Nylon arepreferred.

- In situations where heat is required to soften andexpand the TurconR-seal components, submerse themfor a few minutes in hot oil or water (200 _F). Heatshould not be required to install elastomercomponents. Be sure to use compatible lubricant wheninstalling elastomer components.

- Application of a lubricant to surfaces of the seal andhardware reduces the force required to push the sealinto a difficult gland such as a solid O-Ring groove.

- Piston seals may be sized by freezing them prior toinstalling the piston in the bore. A typical situationwhere this is an advantage is on spool valve pistons.

- A lead-in chamfer on the end of the rod or bore helpsduring installation. The proper chamfer dimensions aregiven in the tables found later in this section. This isespecially important where seals are to be installedfacefirst towards the seal-lip into the gland.

- When seals must be installed across ports, the edges ofthe ports should be smooth and rounded.

- Design splines or keyways to fall on a smaller diameterthan the sealing surface or use a protective sleeve tocover them during installation as illustrated in Fig. 141.

- Avoid glands which require bending the seals duringinstallation. When seals must be stretched orcompressed into a difficult gland, be sure to use therecommended tooling described in Fig. 142-144 resizethe seals.

- Do not sideload the seals any more than is necessary.Avoid gland situations where a heavy rod or pistonbears against one side of the seal.

If you feel that your application poses a special problemwith installation, your Shamban sales engineer will bepleased to demonstrate installation of seals and scrapers.


124


Procedure for installation of piston seals

Figure 142 Expanding the TurconR Sealing Element Using an Expanding Sleeve over the Installation Sleeve

Figure 143 Sealing Element after Snapping into the Groove

Figure 144 Sizing the Sealing Element with a Sizing Sleeve


125


For sizes where the TurconR seal ring is expanded morethan 15% (10% for the high filled materials TurconR T10and TurconR T29), a split groove is necessary.

Figure 145 Installation in a Split Groove

Figure 146 Fitting the Seal Ring onto the O-Ring in theGroove

Figure 147 Sizing of the Installed Seal


126


Procedure for installation of rod seals- Place the elastomer part into the groove- Compress the TurconR part into a kidney shape. Theseal must have no sharp bends (Figure 148)! Use arounded object like a pen to compress the TurconR

part.

Figure 148 Kidney-Shaped Deformation of the Seal Ring

Figure 149 Inserting the Seal Ring into the ClosedGroove

- After placing into the groove, form the seal into a ringagain by smoothing out the I.D. by hand.

- Finally, size the seal ring using a mandrel which shouldhave a chamfer of 10_ to 15_ over a length of approx.30 mm. (Figure 150).

The sizing mandrel should be made from a polymermaterial (e.g. polyamide) with good sliding characteristicsand high surface quality in order to avoid damage to theseals.

The piston rod itself can also be used for calibration,provided it has a sufficiently long lead-in chamfer.

rounded and polished

10_-15_

Rotate byseal contact

30

Figure 150 Sizing of the Installed Seal

Note! Should you encounter problems with installation even after following the recommendations in this catalog,additional information is available.


127


Quality Criteria

The cost-effective use of seals and bearings is highlyinfluenced by the quality criteria applied in production.Seals and bearings manufactured by Shamban arecontinuously monitored according to strict qualitystandards from material acquisition through to delivery.

Certification of our production plants in accordance withinternational standards EN ISO 9000 meets the specificrequirements for quality control and management ofpurchasing, production and marketing functions.

Our quality policy is consistently controlled by strictprocedures and guidelines which are implemented withinall strategic areas of the company.

All testing of materials and products is performed inaccordance with accepted test standards andspecifications, e.g. random sample testing in accordance

with DIN ISO 2859 part 1/ANSI/ASQC Z 1.4-1993/MIL-STD- 105 E. Inspection specifications correspond tostandards applicable to individual product groups (e.g.for O-Rings: ISO 3601/DIN 3771).

Our sealing materials are produced free ofchlorofluorinated hydrocarbons and carcinogenicelements.

For Seals and Bearings used in the AerospaceIndustry, an ”A” must be specified in the 10thdigit. In special numbers, the ”A” will be in the 5th digitof the number. Customer-specific demands are indicatedand monitored with other characters in those positions.

Certificates of Approval

All manufacturing companies have ISO 9001/9002 certification and all marketing companies are certified or will be inthe near future.


128


Storage

(The notes in italics only apply to elastomeric sealingmaterials).

Seals and bearings are often stored as spare parts forprolonged periods. With a few basic simple precautions,the shelf life of these products can be considerablylengthened.

Seals and bearings should be stored where they are safefrom damage by external influences. Deformation, inparticular, should be avoided during storage.

Under the influence of various external factors e.g. heat,moisture, light, oxygen, ozone and as a result of contactwith liquid media, the properties of certain materials maychange. For example, deformation, ageing andweathering can cause deterioration of the originalmechanical and physical properties, depending on thematerial and shape of the parts.

Fundamental instructions on storage, cleaning andmaintenance of elastomer seal elements are described ininternational standards, such as:

Storage of rubber products: DIN 7716/BS 3F68: 1977

Maximum agelimitation: New seal storage spec.: ARP 5316

MIL-HDBK-695C (Pending on cancellation)MIL-STD-1523A (Cancelled)DIN 9088

The individual guidelines give several recommendationsfor the shelf life of elastomers, depending on the materialclasses.

The following guidelines should be observed to maintainthe optimum physical and chemical values of the parts:

Heat

The ideal temperature for storage is between+5_C/41_Fand +25_C/77_F. Direct contact with heaters should beavoided.

Moisture

Parts must be stored dry under normal atmosphericconditions (65% rel. moisture ±10).

Light

To ensure that the properties of the product aremaintained, elastomer seals should be stored to avoidexposure to ultra violet or neon light.

Oxygen

To protect elastomers from oxygen, they should be kept inthe original packaging or in airtight containers.

Weathering

To protect them against damage, seals and bearingsshould be kept in the original sealed packaging.

Ozone

Destruction of certain elastomeric sealing materials due toozone can be caused by the following machines andequipment:

- Mercury discharge lamps

- High voltage equipment

- Electric motors

- Electric spark sources or discharges


129


Customer Approvals

A Abex/Parker/NWL, Control Systems

ABS

AEG

AERO VODOCHODY, a.s.

Aerojet Strategic Propulsion Company

Aerospatiale

Airesearch

Airlines (all major airlines)

Airscrew Howden

Allied Signal/Bendix Engine Controls QP2000

Allied Signal/Bendix Wheels & Brakes QP318

Allison Gas Turbine

Alresearch MIL-I-45208A

Alvis Aerospace & Transmission

Amsco

Anchor Darling Valve Company

ANPK ”MIG”

APPH Precision Hydraulics

Argo-Tech

Arkwin

Asdor Filters

Agusta

B Battle of Britain Flight

BF Goodritch

Boeing Company D1-9000

British Aerospace BAe/AG/QC/SC1, Part 3b

British Aerospace

BW/IP International

C Cadillac Gage

Coltax Aerospace

Compania Espanola de Sistemas Aeronauticas,S.A.(CESA)

Construcciones Aeronauticas, S.A. (CASA)

D DAF Special Products B.V.

Daimler Benz Aerospace Airbus GmbH

DLA-DCAS

Douglas Aircraft

Dowty Aerospace

Dräger Hispania S.A.

Dunlop

E EDO

Emco Fluid Systems

E.N. Santa Barbara

Energia

Ericsson Saab Avionics

F Fairey Hydraulics

Fairey Microfiltrex

Fimac

FFV Aviocomp

FFV Aerotech

Flight Refuelling

FLS Aerospace

G Gamesa Aeronautica

Garrett GmbH

GEC Marconi

General Dynamics - Top Gun Supplier

General Electric Aircraft Engine S1000

Grumman MIL-I-45208A (QES0002 - Part I)

H H R Textron

Hamilton Standard

Hispano-Suiza

Hollandse Signaalapparaten B.V.

Honeywell Space Systems

Hunting Aviation

Hughes Aircraft

Hydro-Air

Hymatic Engineering Co. Ltd


130


I Israel Aircraft/Astra Jet

J JIHLAVAN, a.s.

JIHOSTROJ, a.s.

K Kaman Aerospace MIL-I-45208A

Kombinat ”PZL-HYDRAL SA

Kværner

L Liebherr Aerospace Lindenberg GmbH (LLI)

LTV

Lucas Aerospace (all)

M M.L. Aviation

Magnaghi

Martin Baker Aircraft Ltd.

McDonnell Douglas

Meggitt Oxygen Systems

Messier-Bugatti

Messier-Dowty

Microtecnica

MOOG Controls

Moscow helicopter plant ”Mil”

N Normalair-Garrett Ltd.

Nuclear Assurance

O Oma

P Parker Hannifin

Pattonair

PHD

Pilatus

R Raytheon

Remco Hydraulics

Rockwell International ST0802GT0002, 20C

Rodina

Rolls Royce (ALL)

Rubin

S SABCA

Sargent Controls MIL-I-45208A

Satair

SHL

Short Brothers

Sundstrand

Swedish Space Agency

Saab Military Aircraft

Saab Aircraft

T Teijin Seiki

V/W Vickers

Volvo Aero Support

Volvo Flygmotor

Voskhod

Westlands (ALL)

Woodward Governor

Z Z.F.

ZAKLAD LOTNICZY ”PZL-MIELEC” Sp.z.o.o.

Zvezda


131


Technical Questionnaire

We would be pleased to send you a technical proposal/quotation to your sealing or bearing application upon receipt ofthis questionnaire. (Look for address and fax number on the back page of the catalogue).

Name: Date:

Division:- T h i l lCompany: - Technical proposal:

- Q t ti f iAddress:

- Quotation for pieces

Annual usage:Postal Code:

Annual usage:

Telephone: - Others:Telefax:

- O e s

Pleaseprovide relevant dimensions to your applicationon thedrawing shownbelow, or sendusa copyofyour hardware drawing.

Service Conditions and Hardware:Type of component: Short description of your application or

bComponent description:p y pp

objectives:

Pressure range:Operating pressure:Temperature range:Operating temperature:Speed max: Operating speed:Media:Movement:

-oscillatory -reciprocating

-rotation -static

Number of cycles/frequency:Maximum stroke:Material (housing/countersurface):Surface finish:Service life required:

www.busakshamban.com

99/G

B/L2

3011

/040

4

For further information:

Europe Telephone

FRANCE - Paris +33 (0) 1 30 86 56 00

GERMANY - Stuttgart +49 (711) 7 86 40

ITALY - Livorno +39 (0586) 22 61 11

SPAIN - Madrid +34 (91) 7 10 57 30

SWEDEN - Jönköping +46 (36 ) 34 15 00

UNITED KINGDOM - Ashchurch +44 (0) 16 84 85 22 11

America

AMERICAS - Fort Wayne, IN +1 (260) 7 49 96 31

BRAZIL - Sao Paulo +55 (11) 33 71 25 70

CANADA - Ontario +1 (416) 2 13 94 44

USA, Midwest - Lombard, IL +1 (630) 2 68 99 15

USA, South - N. Charleston, SC +1 (843) 7 47 76 56

USA, Southwest - Houston, TX +1 (713) 4 61 34 95

USA, West - Torrance, CA +1 (310) 3 71 10 25

Asia

JAPAN - Tokyo +81 (35) 6 10 18 11

www.trelleborg.com

For all other countries please contact via the website: Phot

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