50b-4kg1/2050b-4kg1 - cla-val manuals/tm-50b-4kg… · the cla-val 50b-4kg1 and 2050b-4kg1 pressure...

50B-4KG1/2050B-4KG1

OPTIONAL FEATURESNOT FURNISHED BY CLA-VAL CO.

REV.DRAWING NO.

DESIGN

DRAW

CHK'D

APV'D

CATALOG NO.

TYPE OF VALVE AND MAIN FEATURES

DES

CRI

PTIO

NC

AD

REV

ISIO

N R

ECO

RD -

DO

NO

T RE

VIS

E M

AN

UALL

YBY

DA

TELT

R

ADDED TO CATALOG NUMBER

NO. QTYITEM BASIC COMPONENTS

OPTIONAL FEATURE SUFFIX

INLET

123

111

111

*100-06 HYTROL (MAIN VALVE)

A-M

SEE

REV

ISIO

N F

ILE

80984 T

MGR 8-18-80

**PRESSURE RELIEF CONTROL

5

1

3

CH 8-20-80HWE 8-20-80

10-1

7-91

TLC

N

2

4

6

X44A STRAINER & ORIFICE ASSEMBLY

X46A FLOW CLEAN STRAINER 165 PRESSURE GAGE

81-01 CHECK VALVE4 11

NOT BE USED, COPIED OR REPRODUCED, NOR SHALL THE SUBJECT HEREOF BE DISCLOSED IN ANY MANNER TO ANYONE FOR ANY PURPOSE, EXCEPT AS HEREIN AUTHORIZED, WITHOUT PRIOR WRITTEN APPROVAL OF CLA-VAL CO. THIS

INFORMATION SHOWN HEREON IS PATENTED OR OTHERWISE PROTECTED, FULL TITLE AND COPYRIGHTS, IF ANY, IN AND TO THIS DRAWING AND/OR INFORMATION DELIVERED OR SUBMITTED ARE FULLY RESERVED CLA-VAL CO."

"THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL

SHEET 1 OF 2DIST. CODE 050CVCL 1 2 3 4

50B-4KG1 (GLOBE)2050B-4KG1 (ANGLE)

4-21

-93

TLC

P

** UL LISTING

20-200 PSI &100-300 PSI

** FM APPROVED CRL & CRL60 SPRING RANGES;

CRL SPRING RANGES;

* FORMERLY 100HKG

JB2-

27-9

7R

NOTE: FACTORY MUTUAL APPROVEDTO FM STANDARD 1361 PER PROJECT NO'S.0Y2A4.AH & 3045403

PRESSURE RELIEF VALVEFACTORY MUTUAL APPROVED FOR VALVE SIZES 3", 4", 6" & 8"UL LISTED FOR VALVE SIZES 3", 4", 6" & 8" (GLOBE); 3", 4", 6" & 8" (ANGLE)

20-200 PSI &100-300 PSI

BF10

-18-

12S

MS

9-11

-13

AD

DED

8" G

LOBE

SIZ

E TO

TITL

E BL

OC

K (E

CO

237

55)

T

SEE

SHEE

T 1

LTR

DA

TEBY

CA

D R

EVIS

ION

REC

ORD

- D

O N

OT

REV

ISE

MA

NUA

LLY

DES

CRI

PTIO

N

TYPE OF VALVE AND MAIN FEATURES

OPERATING DATA

II. PRESSURE RELIEF FEATURE PRESSURE RELIEF CONTROL (2) IS A SPRING LOADED, NORMALLY CLOSED PILOT CONTROL THAT

MODULATES (OPENS AND CLOSES) MAINTAINING A RELATIVELY CONSTANT PRESSURE AT THE MAIN VALVE (1) INLET. A BRIEF EXPLANATION OF THE OPENING AND CLOSING CYCLE IS AS

(c) WHEN FLOW OUT OF MAIN VALVE COVER CHAMBER THROUGH CONTROL (2) EXCEEDS FLOW INTO THE MAIN VALVE COVER CHAMBER THROUGH STRAINER & ORIFICE (3), PRESSURE IN THE MAIN VALVE COVER CHAMBER IS REDUCED.

2-29-72JM2-29-72JM8-3-71JM

T8098450B-4KG1 (GLOBE)CATALOG NO.

APV'D

CHK'D

DRAW

DESIGN

DRAWING NO. REV.

SHEET 2 OF 2DIST. CODE 050CVCL 1 2 3 4

(d) WITH REDUCED PRESSURE IN THE MAIN VALVE COVER CHAMBER AND FULL INLET PRESSURE UNDER THE MAIN VALVE DISC, THE MAIN VALVE (1) OPENS.

2050B-4KG1 (ANGLE)

WITHIN THE RANGE SHOWN ON THE PRESSURE RELIEF CONTROL (2) NAMEPLATE. PRESSURE AT THE MAIN VALVE INLET. THE PRESSURE RELIEF SET POINT IS EASILY ADJUSTED ACTUATED PILOT CONTROLLED VALVES DESIGNED TO MAINTAIN A RELATIVELY CONSTANT THE CLA-VAL 50B-4KG1 AND 2050B-4KG1 PRESSURE RELIEF VALVES ARE DIAPHRAGM I. DESCRIPTION

RESPONDS TO SLIGHT PRESSURE CHANGES AT MAIN VALVE INLET. AN INCREASE IN INLET PRESSURE TENDS TO OPEN CONTROL (2) AND A DECREASE IN INLET PRESSURE TENDS TO CLOSE CONTROL (2). THIS CAUSES MAIN VALVE COVER PRESSURE TO VARY AND THE MAIN VALVE (1)

FOLLOWS:

THE FORCE OF THE SPRING IN CONTROL (2), CONTROL (2) OPENS. (b) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL (2) EXCEEDS

DIAPHRAGM OF CONTROL (2). (a) INLET PRESSURE IS DIRECTED THROUGH THE SENSING LINE TO THE ACTUATING OPENING CYCLE:

CLOSING CYCLE: (a) WHEN FORCE CREATED BY INLET PRESSURE UNDER DIAPHRAGM OF CONTROL (2) IS LESS

THAN THE FORCE OF THE SPRING IN CONTROL (2), CONTROL (2) CLOSES.

STRAINER & ORIFICE (3) AND THE MAIN VALVE (1) CLOSES. (b) AS A RESULT, THE MAIN VALVE (1) COVER CHAMBER IS SLOWLY PRESSURIZED THROUGH THE

III. PRESSURE RELIEF CONTROL (2) ADJUSTMENT (a) REMOVE PLASTIC CAP (TURN COUNTERCLOCKWISE). (b) LOOSEN ADJUSTING SCREW JAM NUT (TURN COUNTERCLOCKWISE). (c) TURN ADJUSTING SCREW CLOCKWISE TO INCREASE PRESSURE RELIEF SET POINT

(OR COUNTERCLOCKWISE TO DECREASE SET POINT).

(e) REPLACE PLASTIC CAP. (d) RE-TIGHTEN JAM NUT.

1. PERIODIC CLEANING OF STRAINER SCREEN IN ITEM (3) & (6) IS RECOMMENDED. NOTES:

MAIN VALVE (1) CLOSED. MAINTAINS THE HIGHER PRESSURE IN THE MAIN VALVE (1) COVER CHAMBER KEEPING THE WHEN COVER PRESSURE IS HIGHER THAN INLET PRESSURE, CHECK VALVE (4) CLOSES. THIS IV. CHECK VALVE FEATURE:

2. RELIEF VALVE (2) SHOULD BE TESTED AFTER INSTALLATION TO VERIFY SETTING.

NOT BE USED, COPIED OR REPRODUCED, NOR SHALL THE SUBJECT HEREOF BE DISCLOSED IN ANY MANNER TO ANYONE FOR ANY PURPOSE, EXCEPT AS HEREIN AUTHORIZED, WITHOUT PRIOR WRITTEN APPROVAL OF CLA-VAL CO. THIS

INFORMATION SHOWN HEREON IS PATENTED OR OTHERWISE PROTECTED, FULL TITLE AND COPYRIGHTS, IF ANY, IN AND TO THIS DRAWING AND/OR INFORMATION DELIVERED OR SUBMITTED ARE FULLY RESERVED CLA-VAL CO."

"THIS DRAWING IS THE PROPERTY OF CLA-VAL CO. AND SAME AND COPIES MADE THEREOF, IF ANY, SHALL BE RETURNED TO IT UPON DEMAND. DELIVERY AND DISCLOSURE HEREOF ARE SOLELY UPON CONDITION THAT THE SAME SHALL

PRESSURE RELIEF VALVEFACTORY MUTUAL APPROVED FOR VALVE SIZES 3", 4", 6" & 8"UL LISTED FOR VALVE SIZES 3", 4", 6" & 8" (GLOBE); 3", 4", 6" & 8" (ANGLE)

The Cla-Val Model 50B-4KG1 Globe /2050B-4KG1 AnglePressure Relief Valve is designed specifically to automaticallyrelieve excess pressure in fire protection pumping systems. Pilotcontrolled, it maintains constant system pressure at the pump dis-charge within very close limits as demands change.The Fire Pump Pressure Relief Valve shall modulate to relieveexcess pressure in a fire protection system. It shall maintain con-stant pressure in the system regardless of demand changes. Itshall be pilot controlled and back pressure shall not affect its setpoint. It shall be actuated by line pressure through a pilot controlsystem and open fast in order to maintain steady system pressureas system demand decreases. It shall close gradually to controlsurges and shall re-seat drip-tight within 5% of its pressure setting.

INSTALLATION1. Allow sufficient room around the valve assembly to makeadjustments and for servicing.2. lt is recommended that gate or block valves be installed tofacilitate isolating valve for preventative maintenance. When usedas a surge control or pressure relief valve where valve outlet dis-charge is to atmosphere, then a gate or block valve is needed atvalve inlet. When used as a back pressure sustaining controlvalve where valve outlet is connected to pressurized downstreamsystem, then gate or block valves are needed at valve inlet andoutlet.NOTE: BEFORE THE VALVE IS INSTALLED, PIPE LINESSHOULD BE FLUSHED OF ALL FOREIGN MATTER.3. Place valve in line with flow through valve in direction indicatedon inlet plate or flow arrows. Check all fittings and hardware forproper makeup and verify that no apparent damage is evident.4. Cla-Val Valves operate with maximum efficiency when mountedin horizontal piping with the cover UP; however, other positions areacceptable. Due to size and weight of cover and internal componentson six inch and larger valves, installation with the cover up isadvisable. This makes periodic inspection of internal parts readilyaccessible.5. Caution must be taken in the installation of this valve to insure thatgalvanic and/or electrolytic action does not take place. The proper useof dielectric fittings and gaskets are required in all systems using dis-similar metals.

OPERATION AND START-UP1. Prior to pressurizing the valve assembly make sure the nec-essary gauges to measure pressure in the system, are installedas required by the system engineer. CAUTION: During start-up and test a large volume of watermay be discharged downstream. Check that the downstreamventing is adequate to prevent damage to personnel and equip-ment. All pilot adjustments should be made slowly in smallincrements. If the main valve closes too rapidly it may causesurging in upstream piping.2. Remove cap from CRL-60 then loosen adjusting screw coun-terclockwise. This will allow the valve to open at low pressurerelieving the full flow of the fire pump. Bleed all air from the valveat this time by carefully loosening the cover plug and tube fittingsat the high points. Slowly turn the adjusting screw clockwise onthe CRL-60 while watching the gauge between the valve and thepump until you reach the desired set-point. Tighten the jam nut onthe CRL-60 and replace the cap. DO NOT USE THE GAUGEPROVIDED ON THE VALVE TO SET THE VALVE. IT IS ONLYTHERE TO INDICATE PRESSURE IN THE COVER.

MAINTENANCE1. Cla-Val Valves and Controls require no lubrication or packingand a minimum of maintenance. However, a periodic inspectionschedule should be established to determine how the fluid isaffecting the efficiency of the valve assembly. Minimum of onceper year.2. Repair and maintenance procedures of the Hytrol Main Valveand control components are included in a more detailed TechManual. It can be downloaded from our web site (www.cla-val.com)or obtained by contacting a Cla-Val Regional Sales Office.3. When ordering parts always refer to the catalog numberand stock number on the valve nameplate.

Pressure Relief Valve

50B-4KG1/2050B-4KG1MODEL

INSTALLATION / OPERATION / MAINTENANCE

SYMPTOM PROBABLE CAUSE REMEDY

Main valvewon’t open

Inlet pressure is below set-ting of pilot valve.

Reset pilot valve. Ifchange is from tam-pering, seal cap withwire and lead seal.

Pilot valve is stuck closed:Mineral deposit or foreignmaterial between disc retain-er and stem guide.

Disassemble controland clean.

Water is com-ing out of venthole in cover

Pilot valve diaphragm is rup-tured or diaphragm nut isloose.

Disassemble andreplace diaphragm.Tighten nut.

Main valve isstuck closed

Mineral build-up on stem.Stem damaged.

Disassemble mainvalve, clean partsand/or replace damaged part.

Main valvewon’t close

Inlet pressure is above set-ting of pilot valve. Reset pilot valve

Clogged orifice or strainer. Disassemble andclean.

Pilot valve is stuck open:Foreign material or mineraldeposit under disc retainer ordiaphragm assembly.

Disassemble andclean.

Main valvestuck open

Foreign material or mineraldeposit between seat anddisc assembly.

Disassemble andclean.

Main valve diaphragm wornout.

Disassemble andreplace.

Valve leakscontinuously

Pilot valve disc worn out.Main valve disc worn or dam-aged.

Disassemble andreplace.

Set point too close to inletpressure. Reset pilot valve.

4

2

3

5

6

1

INLET OUTLET

For a more detailed Tech Manual, go to www.cla-val.com or

contact a Cla-Val Regional Sales Office.

CLA-VAL Copyright Cla-Val 2014 Printed in USA Specifications subject to change without notice. P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: [email protected] • Website cla-val.com

© N-50B4KG1/2050B4KG1_CRL-60 (R-06/2014)

50B-4KG1 SCHEMATIC 2. CRL-60 PILOT VALVE

COVER PIPE PLUG

COVER BEARINGSPRING

STEM NUT

DIAPHRAGM WASHER

DISC RETAINER

BODY

*SPACER WASHERS

DISC GUIDE

SEAT

PIPE PLUG

STEM

SEAT O-RING

STUD 8" and Larger

*DIAPHRAGM

*DISC

*Repair Parts

Seat Screw 8" and Larger

(Globe or Angle)

PIPE PLUG

HEX NUT8" and Larger

Cover Bolt6" and Smaller

FLAT WASHER

FLAT WASHER

BASIC COMPONENTS1 100-06 Hytrol (Main Valve)2 CRL-60 Pressure Relief Pilot Valve3 X44A Strainer & Orifice Strainer4 81-01 Check Valve5 Pressure Gauge6 X46A Flow Clean Strainer

X44A Strainer &Orifice Strainer

X46A Flow CleanStrainer

1. HYTROL MAIN VALVE

3X 1/2-14 NPT OR3X 3/4 -14 NPT PIPE PLUG

O-RING

GUIDE STEM, CRL-60

DIAPHRAGMWASHER (LOWER)

DIAPHRAGM

WASHER, DIAPHRAGM

SCREW, FIL HD 10-32

BELLEVILLE WASHER

NUT, STEM, CRL

BALL

NUT, HEX JAM

SCREW, ADJUSTING

CAP

GUIDE, SPRING CRL

O-RING

O-RING

STEM ASSEMBLY, CRL-60

BODY, CRL-60

GUIDE, SPRING CRL

COVER, CRL

SPRING, CRL

3.

6.

Pressure Gauge

5.

* Approximate. Use gauge at valve inlet to set

CRL-60 Pilot Valve

2.

CRL-60 (100 - 300 psi) configuration shown

81-01 Check Valve

4.

CRL-60 adjustment

range (psi)Spring Color psi change per turn*

0 - 75 Red 8.5

20 - 105 Silver 12.0

20 - 200 Green 28

100 - 300 Yellow 18

Description

The CIa-VaI Model 100-01 Hytrol Valve is a main valve for CIa-VaI Automatic Control Valves. It is a hydraulically operated,diaphragm-actuated, globe or angle pattern valve.

This valve consists of three major components; body, diaphragmassembly, and cover. The diaphragm assembly is the only movingpart. The diaphragm assembly uses a diaphragm of nylon fabricbonded with synthetic rubber. A synthetic rubber disc, containedon three and one half sides by a disc retainer and disc guide, formsa seal with the valve seat when pressure is applied above thediaphragm. The diaphragm assembly forms a sealed chamber in theupper portion of the valve, separating operating pressure from linepressure.

Installation1. Before valve is installed, pipe lines should be flushed of all chips,scale and foreign matter.2. It is recommended that either gate or block valves be installed onboth ends of the 100-01 Hytrol Valve to facilitate isoIating the valvefor preventive maintenance and repairs.3. Place the valve in the line with flow through the valve in the direc-tion indicated on the inlet nameplate. (See “Flow Direction”Section). Note: Valve can be installed in the vertical or horizon-

tal position.

4. Allow sufficient room around valve to make adjustments and fordisassembly.5. CIa-VaI 100-01 Hytrol Valves operate with maximum efficiencywhen mounted in horizontal piping with the cover UP, however,other positions are acceptable. Due to size and weight of the coverand internal components of 8 inch and larger valves, installationwith the cover UP is advisable. This makes internal parts readilyaccessible for periodic inspection.

6. Caution must be taken in the installation of this valve to insurethat galvanic and/or electrolytic action does not take place. Theproper use of dielectric fittings and gaskets are required in allsystems using dissimilar metals.7. If a pilot control system is installed on the 100-01 Hytrol Valve,use care to prevent damage. If it is necessary to remove fittingsor components, be sure they are kept clean and replacedexactly as they were.8. After the valve is installed and the system is first pressurized,vent air from the cover chamber and pilot system tubing byloosening fittings at all high points.

Tight Closing Operation

When pressure from the valve inlet (oran equivalent independent operatingpressure) is applied to the diaphragmchamber the valve closes drip-tight.

Full Open Operation

When pressure in diaphragm chamberis relieved to a zone of lower pressure(usually atmosphere) the line pressure(5 psi Min.) at the valve inlet opens thevalve.

Modulating Action

Valve modulates when diaphragm pres-sure is held at an intermediate pointbetween inlet and discharge pressure.With the use of a Cla-Val. "modulatingcontrol," which reacts to line pressurechanges, the pressure above thediaphragm is varied, allowing the valveto throttle and compensate for thechange.

Principles of Operation

Three Way Pilot Control

Three Way Pilot Control

Restriction

Modulating

Control

100-01Hytrol Valve

MODEL


2

Flow Direction

The flow through the 100-01 Hytrol Valve can be in one of twodirections. When flow is “up-and-over the seat,” it is in “normal”flow and the valve will fail in the open position. When flow is “over-the seat-and down,” it is in “reverse” flow and the valve will fail inthe closed position. There are no permanent flow arrow markings.The valve must be installed according to nameplate data.

BRIDGEWALL INDlCATOR

Normal Flow Reverse Flow

Troubleshooting

The following troubleshooting information deals strictly with theModel 100-01 Hytrol Valve. This assumes that all other compo-nents of the pilot control system have been checked out and arein proper working condition. (See appropriate sections inTechnical Manual for complete valve).

Three Checks

The 100-01 Hytrol Valve has only one moving part (the diaphragmand disc assembly). So, there are only three major types of prob-lems to be considered.

First: Valve is stuck - that is, the diaphragm assembly is not freeto move through a full stroke either from open to close or viceversa.

Second: Valve is free to move and can’t close because of a wornout diaphragm.

Third: Valve leaks even though it is free to move and thediaphragm isn’t leaking.

Closed isolation valves in control system, or in main line.

Lack of cover chamber pressure.

Diaphragm damaged. (See Diaphragm Check.)

Diaphragm assembly inoperative.Corrosion or excessive scale build up on valve stem.(See Freedom of Movement Check)

Mechanical obstruction. Object lodged in valve.(See Freedom of Movement Check)

Worn disc. (See Tight Sealing Check)

Badly scored seat. (See Tight Sealing Check)

Closed upstream and/or downstream isolation valves in main line.

Insufficient line pressure.

Diaphragm assembly inoperative. Corrosion or excessivebuildup on valve stem. (See Freedom of Movement Check)

Diaphragm damaged. (For valves in "reverse flow" only)

After checking out probable causes and remedies, the following three checks can be used to diagnose the nature of the

problem before maintenance is started. They must be done in the order shown.

Open Isolation valves.

Check upstream pressure, pilot system, strainer, tubing, valves, or needlevalves for obstruction.

Replace diaphragm.

Clean and polish stem. Inspect and replace any damaged or badly erodedpart.

Remove obstruction.

Replace disc.

Replace seat.

Open isolation valves.

Check upstream pressure. (Minimum 5 psi flowing line pressure differential.)

Clean and polish stem. Inspect and replace anydamaged or badly eroded part.

Replace diaphragm.

Fails to Close

Fails to Open

CAUTION: Care should be taken when doing the troubleshooting checks onthe 100-01 Hytrol Valve. These checks do require the valve toopen fully. This will either allow a high flow rate through thevalve, or the downstream pressure will quickly increase to theinlet pressure. In some cases, this can be very harmful. Wherethis is the case, and there are no block valves in the system toprotect the downstream piping, it should be realized that thevalve cannot be serviced under pressure. Steps should betaken to remedy this situation before proceeding any further.

(cast into side of valve body)


Recommended Tools1. Three pressure gauges with ranges suitable to the instal-lation to be put at Hytrol inlet, outlet and cover connections.

2. Cla-Val Model X101 Valve Position Indicator. This pro-vides visual indication of valve position without disassemblyof valve.

3. Other items are: suitable hand tools such as screw-drivers, wrenches, etc. soft jawed (brass or aluminum) vise,400 grit wet or dry sandpaper and water for cleaning.

All trouble shooting is possible without removing the valve from theline or removing the cover. It is highly recommended to permanentlyinstall a Model X101 Valve Position Indicator and three gauges inunused Hytrol inlet, outlet and cover connections.

Diaphragm Check (#1 )

1. Shut off pressure to the Hytrol Valve by slowly closing upstreamand downstream isolation valves. SEE CAUTION.2. Disconnect or close all pilot control lines to the valve cover andleave only one fitting in highest point of cover open to atmosphere.3.With the cover vented to atmosphere, slowly open upstreamisolation valve to allow some pressure into the Hytrol Valve body.Observe the open cover tapping for signs of continuous flow. It isnot necessary to fully open isolating valve. Volume in cover cham-ber capacity chart will be displaced as valve moves to open posi-tion. Allow sufficient time for diaphragm assembly to shift posi-tions. If there is no continuous flow, you can be quite certain thediaphragm is sound and the diaphragm assembly is tight. If thefluid appears to flow continuously this is a good reason to believethe diaphragm is either damaged or it is loose on the stem. Ineither case, this is sufficient cause to remove the valve cover andinvestigate the leakage. (See “Maintenance” Section for procedure.)

Freedom of Movement Check (#2)

4. Determining the Hytrol Valve’s freedom of movement can bedone by one of two methods.5. For most valves it can be done after completing DiaphragmCheck (Steps 1, 2, and 3). SEE CAUTION. At the end of step 3the valve should be fully open.6. If the valve has a Cla-Val X101 Position Indicator, observe theindicator to see that the valve opens wide. Mark the point of max-imum opening.7. Re-connect enough of the control system to permit the appli-cation of inlet pressure to the cover. Open pilot system cock sopressure flows from the inlet into the cover.8. While pressure is building up in the cover, the valve shouldclose smoothly. There is a hesitation in every Hytrol Valve closure,which can be mistaken for a mechanical bind. The stem willappear to stop moving very briefly before going to the closed posi-tion. This slight pause is caused by the diaphragm flexing at aparticular point in the valve’s travel and is not caused by amechanical bind.9. When closed, a mark should be made on the X101 Valve posi-tion indicator corresponding to the “closed” position. The distancebetween the two marks should be approximately the stem travelshown in chart.

10. If the stroke is different than that shown in stem travel chartthis is a good reason to believe something is mechanically restrict-ing the stroke of the valve at one end of its travel. If the flow doesnot stop through the valve when in the indicated “closed” position,the obstruction probably is between the disc and the seat. If theflow does stop, then the obstruction is more likely in the cover. Ineither case, the cover must be removed, and the obstruction locat-ed and removed. The stem should also be checked for scale build-up. (See “Maintenance, section for procedure.)11. For valves 6” and smaller, the Hytrol Valve’s freedom of move-ment check can also be done after all pressure is removed fromthe valve. SEE CAUTION. After closing inlet and outlet isolationvalves and bleeding pressure from the valve, check that the coverchamber and the body are temporarily vented to atmosphere.Insert fabricated tool into threaded hole in top of valve stem, andlift the diaphragm assembly manually. Note any roughness. Thediaphragm assembly should move smoothly throughout entirevalve stroke. The tool is fabricated from rod that is threaded onone end to fit valve stem and has a “T” bar handle of some kindon the other end for easy gripping. (See chart in Step 4 of“Disassembly” Section.)12. Place marks on this diaphragm assembly lifting tool when thevalve is closed and when manually positioned open. The distancebetween the two marks should be approximately the stem travelshown in stem travel chart. If the stroke is different than thatshown, there is a good reason to believe something is mechani-cally restricting the stroke of the valve. The cover must beremoved, and the obstruction located and removed. The stemshould also be checked for scale build-up. (See “Maintenance”Section for procedure.)

Tight Sealing Check (#3)

13. Test for seat leakage after completing checks #1 & #2 (Steps1 to 12). SEE CAUTION. Close the isolation valve downstream ofthe Hytrol Valve. Apply inlet pressure to the cover of the valve, waituntil it closes. Install a pressure gauge between the two closedvalves using one of the two ports in the outlet side of the Hytrol.Watch the pressure gauge. If the pressure begins to climb, theneither the downstream isolation valve is permitting pressure tocreep back, or the Hytrol is allowing pressure to go through it.Usually the pressure at the Hytrol inlet will be higher than on theisolation valve discharge, so if the pressure goes up to the inletpressure, you can be sure the Hytrol is leaking. Install anothergauge downstream of isolating valve. If the pressure between thevalves only goes up to the pressure on the isolation valvedischarge, the Hytrol Valve is holding tight, and it was just the iso-lation valve leaking.

STEM TRAVEL(Fully Open to Fully Closed)

Valve Size (inches) Travel (inches)Inches MM Inches MM

1 1/4 32 0.4 101 1/2 40 0.4 102 50 0.6 152 1/2 65 0.7 183 80 0.8 204 100 1.1 286 150 1.7 438 200 2.3 5810 250 2.8 7112 300 3.4 8614 350 4.0 10016 400 4.5 11420 500 5.6 14324 600 6.7 16530 800 7.5 19036 900 8.5 216

COVER CHAMBER CAPACITY(Liquid Volume displaced when valve opens)

Valve size (inches) DisplacementGallons Liters

1 1/4 .020 .071 1/2 .020 .072 .032 .122 1/2 .043 .163 .080 .304 .169 .646 .531 2.08 1.26 4.810 2.51 9.512 4.00 15.114 6.50 24.616 9.57 36.220 12.00 45.424 29.00 109.830 42.00 197.036 90.00 340.0

3

Maintenance

Preventative Maintenance

The Cla-Val Co. Model 100-01 Hytrol Valve requires no lubrication orpacking and a minimum of maintenance. However, a periodic inspec-tion schedule should be established to determine how the operatingconditions of the system are affecting the valve. The effect of theseactions must be determined by inspection.

Disassembly

Inspection or maintenance can be accomplished without removingthe valve from the line. Repair kits with new diaphragm and disc arerecommended to be on hand before work begins.WARNING: Maintenance personnel can be injured and equipmentdamaged if disassembly is attempted with pressure in the valve. SEE

CAUTION.

1. Close upstream and downstream isolation valves and independ-

ent operating pressure when used to shut off all pressure to thevalve.

2. Loosen tube fittings in the pilot system to remove pressure fromvalve body and cover chamber. After pressure has been releasedfrom the valve, use care to remove the controls and tubing. Note andsketch position of tubing and controls for re-assembly. The schemat-ic in front of the Technical Manual can be used as a guide whenreassembling pilot system.

3. Remove cover nuts and remove cover. If the valve has been inservice for any length of time, chances are the cover will have to beloosened by driving upward along the edge of the cover with a dull

cold chisel.

On 6” and smaller valves block and tackle or a power hoist can beused to lift valve cover by inserting proper size eye bolt in place ofthe center cover plug. on 8” and larger valves there are 4 holes (5/8”— 11 size) where jacking screws and/or eye bolts may be insertedfor lifting purposes. Pull cover straight up to keep from damagingthe integral seat bearing and stem.

4. Remove the diaphragm and disc assembly from the valve body.With smaller valves this can be accomplished by hand by pulling

straight up on the stem so as not to damage the seat bearing.

On large valves, an eye bolt of proper size can be installed in thestem and the diaphragm assembly can be then lifted with a block andtackle or power hoist. Take care not to damage the stem or bearings.The valve won't work if these are damaged.

5. The next item to remove is the stem nut. Examine the stemthreads above the nut for signs of mineral deposits or corrosion.If the threads are not clean, use a wire brush to remove as muchof the residue as possible. Attach a good fitting wrench to the nutand give it a sharp “rap” rather than a steady pull. Usuallyseveral blows are sufficient to loosen the nut for further removal.On the smaller valves, the entire diaphragm assembly can be heldby the stem in a vise equipped with soft brass jaws beforeremoving the stem nut.

The use of a pipe wrench or a vise without soft brass jaws scarsthe fine finish on the stem. No amount of careful dressing canrestore the stem to its original condition. Damage to the finish ofthe stem can cause the stem to bind in the bearings and the valvewill not open or close.

6. After the stem nut has been removed, the diaphragm assemblybreaks down into its component parts. Removal of the disc fromthe disc retainer can be a problem if the valve has been in serv-ice for a long time. Using two screwdrivers inserted along the out-side edge of the disc usually will accomplish its removal. Careshould be taken to preserve the spacer washers in water, partic-ularly if no new ones are available for re-assembly.

7. The only part left in the valve body is the seat which ordinarilydoes not require removal. Careful cleaning and polishing of insideand outside surfaces with 400 wet/dry sandpaper will usuallyrestore the seat’s sharp edge. If, however, it is badly worn andreplacement is necessary, it can be easily removed.

Seats in valve sizes 1 1/4” through 6” are threaded into the valvebody. They can be removed with accessory X109 Seat RemovingTool available from the factory. On 8” and larger valves, the seatis held in place by flat head machine screws. Use a tight-fitting,long shank screwdriver to prevent damage to seat screws. If uponremoval of the screws the seat cannot be lifted out, it will be nec-essary to use a piece of angle or channel iron with a hole drilledin the center. Place it across the body so a long stud can be insert-ed through the center hole in the seat and the hole in the angleiron. By tightening the nut a uniform upward force is exerted onthe seat for removal.

NOTE: Do not lift up on the end of the angle iron as this may forcethe integral bearing out of alignment, causing the stem to bind.

VALVE STEM THREAD SIZEValve Size Thread Size (UNF Internal)

1 1/4"—2 1/2" 10—323"—4" 1/4—286"—14" 3/8—24

16" 1/2—2020 3/4-1624" 3/4-1630” 3/4-1636” 3/4-16

COVER CENTER PLUG SIZEValve Size Thread Size (NPT)

1 1/4"—1 1/2" 1/4"2"—3" 1/2"4"—6" 3/4"8"—10" 1"

12" 1 1/4"14" 1 1/2"16" 2"

20” & 24" 2"30” & 36” 2”

NUTANGLE OR CHANNEL IRON

LONG STUD OR BOLT

NUT OR BOLT HEAD

DO NOTLIFT

VALVE SEAT

VALVE BODY

4

Lime Deposits

One of the easiest ways to remove lime deposits from the valve stemor other metal parts is to dip them in a 5-percent muriatic acid solutionjust long enough for the deposit to dissolve. This will remove most ofthe common types of deposits. CAUTlON: USE EXTREME CARE

WHEN HANDLING ACID. Rinse parts in water before handling. If thedeposit is not removed by acid, then a fine grit (400) wet or dry sand-paper can be used with water.

Reassembly

1. Reassembly is the reverse of the disassembly procedure. If a newdisc has been installed, it may require a different number of spacerwashers to obtain the right amount of “grip” on the disc. When thediaphragm assembly has been tightened to a point where thediaphragm cannot be twisted, the disc should be compressed veryslightly by the disc guide. Excessive compression should be avoided.Use just enough spacer washers to hold the disc firmly without notice-able compression.

2. MAKE SURE THE STEM NUT IS VERY TIGHT. Attach a good fit-ting wrench to the nut and give it a sharp “rap” rather than a steadypull. Usually several blows are sufficient to tighten the stem nut for finaltightening. Failure to do so could allow the diaphragm to pull loose andtear when subjected to pressure.

Test Procedure After Valve Assembly

There are a few simple tests which can be made in the field to makesure the Hytrol Valve has been assembled properly. Do these beforeinstalling pilot system and returning valve to service. These aresimilar to the three troubleshooting tests.

1. Check the diaphragm assembly for freedom of movement after allpressure is removed from the valve. SEE CAUTlON. Insert fabricatedtool into threaded hole in top of valve stem, and lift the diaphragmassembly manually. Note any roughness, sticking or grabbing. Thediaphragm assembly should move smoothly throughout entire valvestroke. The tool is fabricated from rod that is threaded on one end to fitvalve stem (See chart in Step 4 of “Disassembly” section.) and has a“T” Bar handle of some kind on the other end for easy gripping.

Place marks on this diaphragm assembly lifting tool when the valve isclosed and when manually positioned open. The distance between thetwo marks should be approximately the stem travel shown in stem trav-el chart. (See “Freedom of Movement Check” section.) If the stroke isdifferent than that shown, there is a good reason to believe somethingis mechanically restricting the stroke of the valve. The cover must beremoved, the obstruction located and removed. (See “Maintenance”Section for procedure.)

Inspection of Parts

After the valve has been disassembled, each part should beexamined carefully for signs of wear, corrosion, or any otherabnormal condition. Usually, it is a good idea to replace the rub-ber parts (diaphragm and disc) unless they are free of signs ofwear. These are available in a repair kit. Any other parts whichappear doubtful should be replaced. WHEN ORDERlNGPARTS, BE SURE TO GIVE COMPLETE NAMEPLATE DATA,ITEM NUMBER AND DESCRlPTlON.

NOTE: If a new disc isn’t available, the existing disc can beturned over, exposing the unused surface for contact with theseat. The disc should be replaced as soon as practical.

3. Carefully install the diaphragm assembly by lowering the stemthrough the seat bearing. Take care not to damage the stem orbearing. Line up the diaphragm holes with the stud or bolt holeson the body. on larger valves with studs, it may be necessary tohold the diaphragm assembly up part way while putting thediaphragm over the studs.

4. Put spring in place and replace cover. Make sure diaphragmis Iying smooth under the cover.

5. Tighten cover nuts firmly using a cross-over pattern until allnuts are tight.

6. Test Hytrol Valve before re-installing pilot valve system.

Due to the weight of the diaphragm assembly this procedure isnot possible on valves 8” and larger. on these valves, the samedetermination can be made by carefully introducing a lowpressure-less than five psi) into the valve body with the covervented. SEE CAUTION. Looking in cover center hole see thediaphragm assembly lift easily without hesitation, and thensettle back easily when the pressure is removed.

2. To check the valve for drip-tight closure, a line should beconnected from the inlet to the cover, and pressure applied at theinlet of the valve. If properly assembled, the valve should holdtight with as low as ten PSI at the inlet. See “Tight SealingCheck” section.)

3. With the line connected from the inlet to the cover, apply fullworking pressure to the inlet. Check all around the cover for anyleaks. Re-tighten cover nuts if necessary to stop leaks past thediaphragm.

4. Remove pressure, then re-install the pilot system and tubingexactly as it was prior to removal. Bleed air from all high

points.

5. Follow steps under “Start-Up and Adjustment” Section inTechnical Manual for returning complete valve back to service.

5

1

58

10

14 16

617

79

OUTLETINLET

GLOBE PATTERN

9

2627

12

1514

16

INLET

OUTLET

ANGLE PATTERN

22

23

13

12

14

10 11 15

23

TOP VIEW

8" - 24" SEAT DETAIL1 1/4" - 6" SEAT DETAIL 16" COVER DETAIL

4

242

25

13

31

28

30

295

14

3

Item Description1. Pipe Plug2. Drive Screws (for nameplate)3. Hex Nut (8” and larger)4. Stud (8” and larger)5. Cover Bearing6. Cover7. Stem Nut8. Diaphragm Washer9. Diaphragm

10. Spacer Washers11. Disc Guide12. Disc Retainer13. Disc

14. Stem15. Seat16. Body17. Spring22. Flat Head Screws (8” and larger)23. Seat O-Ring24. Hex head Bolt (1 1/4” thru 4”)25. Nameplate26. Upper Spring Washer (Epoxy coated valves only)27. Lower Spring Washer (Epoxy coated valves only)28. Cover Bearing Housing (16” only)29. Cover O-Ring (16’” only)30. Hex Bolt (16” only)31. Pipe Cap (16” only)

PARTS LIST

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listed/Approved Fire Protection Pressure Relief Valve

50B-4KG1 Globe2050B-4KG1 Angle

• UL Listed / ULC Listed• Factory Mutual Approved• Fast Opening to Maintain Steady Line Pressure• Accommodates Wide Range of Flow Rates• Closes Gradually for Surge-Free Operation• Adjustable Pressure Settings, Not Affected by Pressure At Valve Discharge

The Cla-Val Model 50B-4KG1 Globe / 2050B-4KG1 AnglePressure Relief Valve is designed specifically to automatical-ly relieve excess pressure in fire protection pumping sys-tems. Pilot controlled, it maintains constant system pressureat the pump discharge within very close limits as demandschange. The 50B-4KG1 and 2050B-4KG1 can be suppliedwith optional internal and external epoxy coating of the mainvalve wetted surfaces.

At pump start, Cla-Val Relief Valve modulates to relieveexcess pump capacity, maintaining positive system pres-sure at the pump discharge.

When fire demand slows or ceases, Cla-Val Model50B-4KG1 opens, diverting entire pump output to dis-charge, allowing fire pump to be stopped without causingsurging in the lines.

(Please note that if the Model 50B-4KG1 is to be used ona continuous duty basis to maintain fire-system pressure,suitable back pressure must be provided on the valve toprevent cavitation damage. Consult the factory for details.)

Operation SequenceTypical Application KO Model 2050B-4KG1Pressure Relief Valve

(Angle Pattern)

Fire Pump

Check Valve

"Fluid Control at It's Best"

2050B-4KG1 (Angle)

To Fire Protection System

UL Listed...............Sizes 3" thru 8" FM Approved.........Sizes 3" thru 8"ULC Listed............Sizes 2” thru 10”

MODEl

Optional UL Listed Materials for Seawater and SevereService Applications:• Nickel Aluminum Bronze (NAB) - ASTM B148 Alloy C95800• Monel - QQ-N-288 Comp B - ASTM A494 Grade M30H• Cast Steel - ASTM A216 Grade WCB • 316 Stainless Steel - ASTM A743 Grades CF3M and CFM8• Super Austenitic Stainless Steel - ASTM A351 Grade

CK3MCuN (SMO 254)• Super Duplex Stainless Steel - ASTM A890 Grade 5A

(CE3MN)

DES IGN

ASSESSED

Type Approved

CLA-VAL EUROPEChemin des Mésanges 1CH-1032 Romanel/Lausanne, SwitzerlandPhone: 41-21-643-15-55Fax: 41-21-643-15-50E-mail: [email protected]

CLA-VAL FRANCEPorte du Grand Lyon 1ZAC du Champ du PérierFrance - 01700 NeyronPhone: 33-4-72-25-92-93Fax: 33-4-72-25-04-17E-mail: [email protected]

CLA-VAL1701 Placentia Avenue • Costa Mesa CA 92627

800-942-6326 Fax: 949-548-5441 Web Site: cla-val.com E-mail: [email protected]

©COPYRIGHT CLA-VAL 2018 Printed in USA Specifications subject to change without notice.

CLA-VAL CANADA4687 Christie DriveBeamsville, OntarioCanada L0R 1B4Phone: 905-563-4963Fax: 905-563-4040E-mail [email protected]

CLA-VAL UKDainton House, Goods Station RoadTunbridge Wells Kent TN1 2 DH EnglandPhone: 44-1892-514-400Fax: 44-1892-543-423E-mail: [email protected]

CLA-VAL PACIFIC45 Kennaway RoadWoolston, Christchurch, 8023New ZealandPhone: 64-39644860www.cla-valpacific.comE-mail: [email protected]

Specifications: Seawater Service Option Sizes Globe: 2" - 8" flanged Angle: 2" - 8" flanged

Consult factory for flange ratings. See page 1 for seawater service materials options.

E-50B-4KG1/2050B-4KGl1 (R-08/2018)

Model 2050B-4KG1 AngleModel 50B-4KG1 Globe

We recommend providing adequate space around valve for maintenance work.

SpecificationsGlobe: 2" - 10” flangedAngle: 2" - 10" flanged150 and 300 ANSI B16.42Class 150 - 250 psi Max.Class 300 - 300 psi MaxWater, to 180°F Max.Main Valve Body & Cover

Ductile Iron ASTM A536 Grade 65-45-12Standard Main Valve Trim:

Bronze Seat, Teflon CoatedStainless Steel Stem, Dura-Kleen Stem

Standard Pilot Control System:Cast Bronze with Stainless Steel trim

Available in the following relief pressure ranges:

20-200 psi (150 Class)100-300 psi (300 Class)

Protective epoxy resin coatingof wetted surfaces of main valve cast iron components(Ul listed HNFX EX2855)

DimensionsB

G

C

F

H E

C

D

A

The Fire Pump Pressure Relief Valve shall modulate to relieve excesspressure in a fire protection system. It shall maintain constant pressurein the system regardless of demand changes. It shall be pilot controlledand back pressure shall not affect its set point. It shall be actuated byline pressure through a pilot control system and open fast in order tomaintain steady system pressure as system demand decreases. It shallclose gradually to control surges and shall re-seat drip-tight within 5% ofits pressure setting. The main valve shall be of the hydraulically-operat-ed, pilot-controlled, diaphragm-type, globe or angle valve. It shall havea single, removable, teflon-coated seat, a grooved stem guided at bothends, and a resilient disc with a rectangular cross section, being con-tained on 3 1/2 sides. No external packing glands shall be permitted andthe diaphragm shall not be used as a seating surface. The pilot controlshall be a direct-acting, adjustable, spring-loaded, diaphragm-type valvedesigned for modulating service to permit flow when controlling pressureexceeds spring setting. This valve shall be Ul listed and Factory Mutualapproved. It shall be the Model 50B-4KG1 (globe) or Model 2050B-4KG1 (angle) Pressure Relief Valve as manufactured by Cla-Val NewportBeach, California.*Special Note:The Model 50B-4KG1 Pressure Relief Valve is available with 300# ANSIinlet flange and 150# ANSI outlet flange. This valve is used on higherpressure systems where 300# flange connections are required, andallows for adapting of a discharge cone (generally supplied with 150#flange) to accommodate "atmospheric break" at relief valve discharge.This relief valve, with 300# / 150# flanges is available on special order,and is UNDERWRITERS lABORATORIES lISTED AND FACTORYMUTUAl APPROVED.

Purchase Specifications

Sizes

End DetailsPressure Ratings

Standard Materials

Adjustment Range

Optional

Valve CapacityValve Sizes in Inches: 2" 2 1/2" 3" 4" 6" 8" 10"

NFPA 20 Maximum 208 300 500 1000 2500 5000 11000

= U.l., F.M. andUlC sizes

Valve Size (inches) 2” 2-1/2” 3” 4” 6” 8” 10”Threaded Ends 9.38 11.00 12.50 - - - - - - - - - - - -A 150 Flanged 9.38 11.00 12.00 15.00 20.00 25.38 29.75

300 Flanged 10.00 11.62 13.25 15.62 21.00 26.38 31.12300 X 150 12.88 15.31 20.56 25.88 30.44

B 3.31 4.00 4.56 5.75 7.88 10.00 11.81C 12.00 12.25 12.50 13.00 14.31 16.31 18.00D 1.50 1.69 2.66 3.19 4.31 5.31 9.25Threaded Ends 4.75 5.50 6.25 - - - - - - - - - - - -E 150 Flanged 4.75 5.50 6.00 7.50 10.00 12.75 14.88

300 Flanged 5.00 5.88 6.38 7.88 10.50 13.25 15.56Threaded Ends 3.25 4.00 4.50 - - - - - - - - - - - -F 150 Flanged 3.25 4.00 4.00 5.00 6.00 8.00 8.62

300 Flanged 3.50 4.31 4.38 5.31 6.50 8.50 9.31G & H 6.00 6.69 7.75 7.88 8.50 9.75 13.25

Valve Size (mm) 50 65 80 100 150 200 250Threaded Ends 238 279 318 - - - - - - - - - - - -A 150 Flanged 234 279 305 381 508 645 756

300 Flanged 254 295 337 397 533 670 790300 X 150 - - - - - - 327 389 522 657 773

B 84 102 116 146 200 254 300C 305 311 1318 330 363 414 457D 38 43 65 81 109 135 235Threaded Ends 121 140 159 - - - - - - - - - - - -E 150 Flanged 121 140 152 191 254 324 378

300 Flanged 127 149 162 200 267 337 395Threaded Ends 83 102 114 - - - - - - - - - - - -F 150 Flanged 83 102 102 127 152 203 219

300 Flanged 89 109 111 135 165 216 236G & H 152 170 197 200 216 248 337

= UlC sizes only

DESCRIPTIONThe CRL Pressure Relief Control is a direct acting, spring loaded,diaphragm type relief valve. It may be used as a self-contained valve oras a pilot control for a Cla-Val Main valve. It opens and closes withinvery close pressure limits.INSTALLATIONThe CRL Pressure Relief Control may be installed in any position. Thecontrol body (7) has one inlet and one outlet port with a side pipe plug(24) at each port. These plugs are used for control connections or gaugeapplications. The inlet in the power unit body (6) is the sensing line port.A flow arrow is marked on the body casting.OPERATIONThe CRL Pressure Relief Control is normally held closed by the force ofthe compression spring above the diaphragm; control pressure is appliedunder the diaphragm.

When the controlling pressure exceeds the spring setting, the disc is liftedoff its seat, permitting flow through the control.

When controlling pressure drops below spring setting, the spring returnsthe control to its normally closed position.

ADJUSTMENT PROCEDUREThe CRL Pressure Relief Control can be adjusted to provide a relief set-ting at any point within the range found on the nameplate.

Pressure adjustment is made by turning the adjustment screw (9) to varythe spring pressure on the diaphragm. Turning the adjustment screwclockwise increases the pressure required to open the valve.Counterclockwise decreases the pressure required to open the valve.

When pressure adjustments are complete the jam nut (10) should betightened and the protective cap (1) replaced. If there is a problem oftampering, lock wire holes have been provided in cap and cover. Wirethe cap to cover and secure with lead seal.

DISASSEMBLYThe CRL Pressure Relief Control does not need to be removed from theline for disassembly. Make sure that pressure shut down is accompaniedprior to disassembly. If the CRL is removed from the line for disassemblybe sure to use a soft jawed vise to hold body during work.

Refer to Parts List Drawing for Item Numbers.1. Remove cap (1), loosen jam nut (10) and turn adjusting

screw counterclockwise until spring tension is relieved.2. Remove the eight screws (4) holding the cover (3) and

powerunit body (6). Hold the cover and powerunit together and place on a suitable work surface. See NOTE under REASSEMBLY.

3. Remove the cover (3) from powerunit body (6). The spring (12) and two spring guides (11).

4. Remove nut (13) from stem (19) and slide off the belleville washer (14), the upper diaphragm washer (15) and the diaphragm (16).

5. Pull the stem (19) with the disc retainer assembly (21) through the bottom of powerunit. The lower diaphragm washer (17) will slide off of stem top.

6. Remove jam nut (23) and disc retainer assembly (21) from stem. Use soft jawed pliers or vise to hold stem. The polished surface of stem must not be scored or scratched.

7. The seat (22) need not be removed unless it is damaged. If removal is necessary use proper size socket wrench and turn counterclockwise.Note: Some models have an integral seat in the body (7).

INSPECTIONInspect all parts for damage, or evidence of cross threading. Checkdiaphragm and disc retainer assembly for tears, abrasions or other dam-age. Check all metal parts for damage, corrosion or excessive wear.REPAIR AND REPLACEMENTMinor nicks and scratches may be polished out using 400 grit wet or drysandpaper fine emery or crocus cloth. Replace all O-rings and any dam-aged parts.When ordering replacement parts, be sure to specify parts list item num-ber and all nameplate data.REASSEMBLYIn general, reassembly is the reverse of disassembly. However, the fol-lowing steps should be observed:

1. Lubricate the O-Ring (18) with a small amount of a good grade of waterproof grease, (Dow Corning 44 medium grade or equal). Use grease sparingly and install O-ring in powerunit body (6).

2. Install stem (19) in powerunit body (6). Use a rotating motion with minimum pressure to let stem pass through O-ring.

Do Not Cut O-Ring.

3. Install O-ring (5) at top of stem (19). Place lower diaphragm washer (17) on the stem with the serrated side up. Position diaphragm (16), upper diaphragm washer (15), with serration down, and belleville washer (14) with concave side down.

4. Position powerunit body (6) as shown on parts list drawing (top view).

5. Continue reassembly as outlined in disassembly steps 1 through 3.

Pressure Relief ControlCRL

Note: Item (4) Screw will have a quantity of 8 for the 0-75 and 20-200psidesign and a quantity of 4 for the 100-300psi design. Item (25) Screw isused on the 100-300psi design only. Install item (25), before item (4) forpreload of item (12) spring.


Fails to open. Controlling pressuretoo low.

Back off adjustingscrew until valveopens.

Fails to open withspring compressionremoved.

Mechanical obstruc-tion, corrosion, scalebuild-up on stem.

Disassemble,locate,and removeobstruction, scale.

Leakage from covervent hole when con-trolling pressure isapplied.

Diaphragm Damage Disassembly replacedamageddiaphragm.

Fails to close withspring compressed.

Mechanical obstruc-tion.

Disassemble, locateand removeobstruction.

Fails to close. No spring compres-sion.

Re-set pressureadjustment.

Loose diaphragmassembly.

Tighten upperdiaphragm washer.

MODEL



© N-CRL (R-3/2011)

1/2" & 3/4" PRESSURE RELIEF CONTROL(Bronze Body with 303SS Trim)

CRL

Ajusting Screw(3/8" - 16UNF THREAD)

9

1

10

3

11

12

1413 11

8 22 23 7

18

19

21

INLET

1/8 - 27 NPTSENSINGCONNECTION(TYP.)

7.44MAX

.71

OUTLET20

6

2

0 TO 75 AND20 TO 200 PSI

DESIGN

5

17

16

15

4

1

9

10

3

11

12

18

7

2

100 To 300 psi Design

.71

ADJUSTING SCREW (1/2" 20UNF THREAD)

10.44 MAX.

When ordering parts please specify:1. All Nameplate Data 2. Item Part Number3. Item Description

24

4

45º

3.12 DIA.

TRUE LOCATION OF SENSING CONNECTION (TYP.)

Body withintegral Seat


© PL-CRL (R-8/2011)

PARTS LIST

Item Description Material Part Number Part Number Part Number Part Number0-75 20-105 20-200 100-300

1 Cap Plastic 67628J 67628J 67628J 1257601D2 Nameplate Brass -- -- -- --3 Cover Bronze C2544K C2544K C2544K 44587E4* Screw Fil. Hd. 10-32 x 1.88 (Qty 8) 303 SS 6757867E 6757867E 6757867E 6757867E5* O-Ring Rubber 00902H 00902H 00902H 00902H6 Body, Powerunit Bronze 7920504D 7920504D 7920504D 7920504D7 1/2” Body Bronze C7928K C7928K C7928K C7928K

3/4” Body Bronze C9083B C9083B C9083B C9083B8* O-Ring, Seat Rubber 00718H 00718H 00718H 00718H9 Screw, Adjusting Brass 7188201D 7188201D 7188201D 82811B10 Nut Hex (Locking) 303 SS 6780106J 6780106J 6780106J 6780606H11 Guide, Spring 303 SS 71881H 71881H 71881H 1630301J12 Spring CHR/VAN 71884B 20632101E 71885J 1630201A13 Nut, Stem Upper Bronze 73034B 73034B 73034B 73034B14 Washer, Belleville Steel 7055007E 7055007E 7055007E 7055007E15 Washer, Diaphragm (upper) 303 SS 71891G 71891G 71891G 71891G16* Diaphragm Rubber C1505B C1505B C1505B C1505B17 Washer, Diaphragm (lower) 303 SS 45871B 45871B 45871B 45871B18* O-Ring, Stem Rubber 00746J 00746J 00746J 00746J19 Stem 303 SS 8982401F 8982401F 8982401F 8982401F20* O-Ring, Body Rubber 00767E 00767E 00767E 00767E21* Retainer Assembly, Disc 303 SS C9158B C9158B C9158B C9158B22 Seat 303Rub 62187A 62187A 62187A 62187A23 Nut, Hex, Stem, Lower Bronze 6779806G 6779806G 6779806G 6779806G24 Pipe Plug Bronze 6784701C 6784701C 6784701C 6784701C

FACTORY SET POINT 50 PSI 60 PSI 60 PSI 100 PSIREPAIR KIT* 9170007A 9170007A 9170007A 9170007A

CRLRange PSI

APPROX. INCREASEFOR EACH

CLOCKWISE TURN OF ADJUSTING SCREW

0 to 75 8.5 PSI

20 to 105 12.5 PSI

20 to 200 28.0 PSI

100 to 300 18.0 PSI

SIZE SPRINGPART

NUMBER1/2” 0-75 PSI 7922201E

1/2” 20-105 PSI 7922205F

1/2” 20-200 PSI 7922202C

1/2” 100-300 PSI 8280901D

3/4” 0-75 PSI 7922901K

3/4” 20-105 PSI 7922903F

3/4” 20-200 PSI 7922902H

3/4” 100-300 PSI 8600501E

For 250-600 PSI Contact Factory

The strainer is designed for use in conjunction with a Cla-ValMain Valve, but can be installed in any piping system wherethere is a moving fluid stream to keep it clean. When it is usedwith the Cla-Val Valve, it is threaded into the upstream body portprovided for it on the side of the valve. It projects through theside of the Main Valve into the flow stream. All liquid shunted tothe pilot control system and to the cover chamber of the MainValve passes through the X46 Flow Clean Strainer.

C Male Pipe

SAE

H

D

E

B

IG

MalePipe

B

I

Width Across Flats

FemalePipe

A

D

EF

• Self Scrubbing Cleaning Action• Straight Type or Angle Type

The Cla-Val Model X46 Strainer is designed to prevent passage offoreign particles larger than .015". It is especially effective againstsuch contaminant as algae, mud, scale, wood pulp, moss, and rootfibers. There is a model for every Cla-Val. valve.

The X46 Flow Clean strainer operates on a velocity principle utilizingthe circular "air foil" section to make it self cleaning. Impingement ofparticles is on the "leading edge" only. The low pressure area on thedownstream side of the screen prevents foreign particles from clog-ging the screen. There is also a scouring action, due to eddy cur-rents, which keeps most of the screen area clean.

Dimensions (In Inches)

INSTALLATION

X46 Angle Type B (In Inches)

B(NPT) C(SAE) D E H I

1/8 1/4 1-3/8 5/8 7/8 1/4

1/4 1/4 1-3/4 3/4 1 3/8

3/8 1/4 2 7/8 1 1/2

3/8 3/8 1-7/8 7/8 1 1/2

1/2 3/8 2-3/8 1 1-1/4 5/8

X46A Straight

X46B Angle

X46A Straight Type A (In Inches)A B D E F G I

1/8 1/8 1-3/4 3/4 1/2 1/2 1/4

1/4 1/4 2-1/4 1 3/4 3/4 3/8

3/8 3/8 2-1/2 1 7/8 7/8 1/2

3/8 1/2 2-1/2 1-1/4 1/2 7/8 3/4

1/2 1/2 3 1-1/4 1 1-1/8 3/4

3/8 3/4 3-3/8 2 1/2 1 7/8

3/4 3/4 4 2 1 1-1/2 7/8

3/8 1 4-1/4 2-3/4 1/2 1-3/8 7/8

1 1 4-1/2 2-3/4 1-1/4 1-3/4 7/8

1/2 1 4-1/4 2-3/4 1/2 1-3/8 7/8

Flow Clean StrainerX46

INSPECTIONInspect internal and external threads for damage or evidenceof cross-threading. Check inner and outer screens for clogging,embedded foreign particles, breaks, cracks, corrosion, fatigue,and other signs of damage.

CLEANINGAfter inspection, cleaning of the X46 can begin. Water service usually will producemineral or lime deposits on metal parts in contact with water. These deposits canbe cleaned by dipping X46 in a 5-percent muriatic acid solution just long enoughfor deposit to dissolve. This will remove most of the common types of deposits.Caution: use extreme care when handling acid. If the deposit is not removedby acid, then a fine grit (400) wet or dry sandpaper can be used with water.Rinse parts in water before handling. An appropriate solvent can clean parts usedin fueling service. Dry with compressed air or a clean, lint-free cloth. Protect from damage and dust until reassembled.

REPLACEMENTIf there is any sign of damage, or if there is the slightest doubt that the Model X46Flow Clean Strainer may not afford completely satisfactory operation, replace it. UseInspection steps as a guide. Neither inner screen, outer screen, nor housing is fur-nished as a replacement part. Replace Model X46 Flow Clean Strainer as a com-plete unit.

When ordering replacement Flow-Clean Strainers, it is important to determine pipesize of the tapped hole into which the strainer will be inserted (refer to column A orF), and the size of the external connection (refer to column B or G).

When Ordering,Please Specify:

• Catalog Number X46• Straight Type or Angle Type• Size Inserted Into and Size Connection• Materials

DISASSEMBLYDo not attempt to remove the screens from the strainer housing.

MODEL



© N-X46 (R-3/2011)

(NPT) (NPT)

X46B

X46A

When ordering parts, please specify:

• All Nameplate Data• Item Number • Description• Recommended Spare Parts

Strainer and Orifice Assembly

X44A

BRONZE BODY — DELRIN ORIFICE

1/8 NPT 3/8 NPT

3/4

3/4

3 3/8

2 3 5

43/8 NPT

8

7

61

2 1/4 MAX.

7/8

Inlet Outlet

X44A

STOCK NO.

71310-01F

-02

-03B

-04K

-05G

-06

* -07C

-08

-09

-10

-11

ORIFICE DIA.

.031

.046

.062

.078

.093

.109

.125

.140

.156

.187

.172

ORIFICE PLUG

PART # (ITEM 5)

94132-01

-02E

-03C

-04A

-05H

-06

-07D

-08

-09

-10H

-11F

*Standard

3/8" x 3/8"

ITEM

1

2

3

4

5

6

7

8

DESCRIPTION

Body

Plug, Top

"O" Ring, Plug Top

Screen

Orifice Plug

Plug, Pipe

Strainer Plug

"O" Ring, Strainer Plug

MATERIAL

Red Brs.

Brass

Syn. Rub.

Monel

Delrin

Brass

S.S.

Syn. Rub.

QTY.

1

1

1

1

1

1

1

1


© PL-x44a (R-3/2011)

PARTS LIST

A2.50

A

2.75

SECTION AA

3/8 N.P.T.

1.25

1.50

3/8 N.P.T.BOTH ENDS

6

5

4

1

3

2

8

7

Outlet Inlet

Flow

1. Cover Screw (8 Required)2. Cover

*3. Spring4. Diaphragm Washer

*5. Diaphragm*6. Disc Retainer Assembly7. Body Plug (3/8 NPT)8. Body (Threaded)

ITEM DESCRIPTION

When orderingparts, please

specify:• All nameplate data • Description• Part Number• Item Number• Material

*Recommended Spare Parts

3/8" Check Valve81-01

PARTS LIST

2

107

6

9

11

3

5

1

4

8

3.50

.56

2.56

FLOW

OUTLETINLET

3.12 DIA

ITEM DESCRIPTION

When orderingparts, please

specify:• All nameplate data • Description• Part Number• Item Number• Material

*Recommended Spare Parts

1/2" & 3/4 Check Valve81-01


©PL-81-01 (R-3/2011)

PARTS LIST

1. Body 12. Cover 1

*3. Diaphragm 14. Guide Disc 1

*5. Disc Retainer Assembly 17. Nut Hex 3/8 - 24UNF 28 18. Plug Pipe Hex NPT 29. Screw, Fil HD 10 32UNF 2 x 2LG 8

10. Spring 111. Nameplate 1

CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: [email protected] • www.cla-val.com Copyright Cla-Val 2017 • Printed in USA • Specifications subject to change without notice.©

Cla-Val Gauge Option

E-X141 (R-08/2017)

X141MODEL

Available Pressure Ranges

Typical Installation with two X141 Gauges

• Liquid-Filled

• Dual Scale (PSI / BAR)

• Long Life Stainless Steel Construction

• Tamper-Resistant Design

• 2 1⁄2" and 4" Diameter Sizes

• Isolation Valve Included

The Cla-Val Model X141 Pressure Gauge Option consists of glyc-erin-filled pressure gauges with the Cla-Val Logo and 1⁄4” CK2Bronze Isolation Valves on the main valve inlet and outlet. Cla-Valgauges are waterproof, shock resistant, and fully enclosed with astainless steel case and bronze wetted parts. Ambient temperatureratings are -4 Degrees F to +140 Degrees F (-20 Degrees C to +60Degrees C).

All gauges have dual scale (PSI/BAR) and are supplied with a 1/4"NPT bottom connection. Model X141 gauges are available installedon new valves and must be specified on the customer PurchaseOrder. Consult factory for other available materials.

Model X1414" Pressure Gauge

X141 Gauge Assembly (2 1/2" Diameter Dial) Pressure Range* Part Number 0 - 60 psi 20534301 A 0 - 100 psi 20534302K 0 - 160 psi 20534311J 0 - 200 psi 20534303J 0 - 300 psi 20534304H 0 - 400 psi 20534305G

X141 Gauge Assembly (4" Diameter Dial) Pressure Range* Part Number 0 - 60 psi 20534306F 0 - 100 psi 20534307E 0 - 200 psi 20534308D 0 - 300 psi 20534309C 0 - 400 psi 20534310K

Typical X141 Installation

*Specify desired pressure range and valve location (inlet or outlet) on order.

How to Order

How To OrderThere are many valves and con-trols manufactured by Cla-Val. thatare not listed due to the sheer vol-ume. For information not listed,please contact your local Cla-Valrepresentative.

Specify whenordering• Model Number• Adjustment Range

(As Applicable)• Valve Size• Optional Features• Pressure Class

Unless OtherwiseSpecified• X43 “Y” Strainer is

included.• CK2 Isolation Valves is

included in price on 6" and larger valve sizes.

Limited Warranty

Automatic valves and controls as manufactured by Cla-Val arewarranted for one year from date of shipment against manufac-turing defects in material and workmanship which develop in theservice for which they are designed, provided the products areinstalled and used in accordance with all applicable instruc-tions and limitations issued by Cla-Val. Electronic componentsmanufactured by Cla-Val are warranted for one year from the date ofshipment.

We will repair or replace defective material, free of charge,which is returned to our factory, transportation charges prepaid,provided that, after inspection, the material is found to havebeen defective at time of shipment. This warranty is expresslyconditioned on the purchaser’s giving Cla-Val immediate writtennotice upon discovery of the defect.

Components used by Cla-Val but manufactured by others, arewarranted only to the extent of that manufacturer’s guarantee.

This warranty shall not apply if the product has been altered orrepaired by others, and Cla-Val. shall make no allowance orcredit for such repairs or alterations unless authorized in writingby Cla-Val.

50B-4KG1/2050B-4KG1 Product Identification

Proper Identification

For ordering repair kits, replacement parts, or for inquiriesconcerning valve operation it is important to properly iden-tify Cla-Val products already in service. Include all name-plate data with your inquiry. Pertinent product data includesvalve function, size, material, pressure rating, end details,type of pilot controls used and control adjustment ranges.

Identification Plate

For product identification, cast in body markings are sup-plemented by the identification plate illustrated on thispage. The plate is mounted in the most practical position. Itis extremely important that this identification plate isnot painted over, removed, or in any other way ren-dered illegible.

Disclaimer Of Warranties And

Limitations Of LiabilityThe foregoing warranty is exclusive and in lieu of all otherwarranties and representations, whether expressed, implied,oral or written, including but not limited to any implied war-ranties or merchantability or fitness for a particular purpose.All such other warranties and representations are herebycancelled.

Cla-Val shall not be liable for any incidental or consequentialloss, damage or expense arising directly or indirectly fromthe use of the product. Cla-Val shall not be liable for anydamages or charges for labor or expense in making repairsor adjustments to the product. Cla-Val shall not be liable forany damages or charges sustained in the adaptation or useof its engineering data and services. No representative ofCla-Val may change any of the foregoing or assume anyadditional liability or responsibility in connection with theproduct. The liability of Cla-Val is limited to material replace-ments F.O.B. Newport Beach, California.

MODEL

Terms Of Sale

ACCEPTANCE OF ORDERSAll orders are subject to acceptance by our main office at Newport Beach, California.

CREDIT TERMS

Credit terms are net thirty (30) days from date of invoice.

PURCHASE ORDER FORMSOrders submitted on customer’s own purchase order forms will beaccepted only with the express understanding that no statements,clauses, or conditions contained in said order form will be binding onthe Seller if they in any way modify the Seller’s own terms and con-ditions of sales.

PRODUCT CHANGESThe right is reserved to make changes in pattern, design or materi-als when deemed necessary, without prior notice.

PRICESAll prices are F.O.B. Newport Beach, California, unless expresslystated otherwise on our acknowledgement of the order. Prices aresubject to change without notice. The prices at which any order isaccepted are subject to adjustment to the Seller’s price in effect atthe time of shipment. Prices do not include sales, excise, municipal,state or any other Government taxes. Minimum order charge$75.00.

RESPONSIBILITYWe will not be responsible for delays resulting from strikes, acci-dents, negligence of carriers, or other causes beyond our control.Also, we will not be liable for any unauthorized product alterations orcharges accruing there from.

Risk

All goods are shipped at the risk of the purchaser after they have beendelivered by us to the carrier. Claims for error, shortages, etc., must bemade upon receipt of goods.

EXPORT SHIPMENTS

Export shipments are subject to an additional charge for export packing.

RETURNED GOODS

1. Customers must obtain written approval from Cla-Val prior to return-ing any material.

2. Cla-Val reserves the right to refuse the return of any products.

3. Products more than six (6) months old cannot be returned for credit.

4. Specially produced, non-standard models cannot be returned forcredit.

5. Rubber goods cannot be returned for credit, unless as part of anunopened repair kit which is less than six months old.

6. Goods authorized for return are subject to a 35% ($75 minimum)restocking charge and a service charge for inspection, reconditioning,replacement of rubber parts, retesting and repackaging as required.

7. Authorized returned goods must be packaged and shipped prepaid toCla-Val., 1701 Placentia Avenue, Costa Mesa, California 92627-4475.

PO Box 1325 Newport Beach CA 92659-0325 Phone: 949-722-4800 Fax: 949-548-5441

CLA-VAL

CLA-VAL CANADA CLA-VAL EUROPE 4687 Christie DriveBeamsville, OntarioCanada L0R 1B4Phone: 905-563-4963Fax: 905-563-4040

Chemin dés Mesanges 1 CH-1032 Romanel/ Lausanne, Switzerland Phone: 41-21-643-15-55 Fax: 41-21-643-15-50

©COPYRIGHT CLA-VAL 2011 Printed in USASpecifications subject to change without notice. www.cla-val.com E-50B-4KG1 P.I.D. (R-3/2011)

Represented By:

REPAIR KITSMODEL


BUNA-N MATERIALRUBBER KIT REPAIR KIT REBUILD KIT STUD & NUT KITSTOCK NO. STOCK NO. STOCK NO. STOCK NO.

3/8” 9169801K 21176614B 21176633J1/2” 9169802H 21176602F 21176615A 21176634H3/4” 9169802H 21176602F 21176615A 21176634H

1” Non-Guided 9169803F 21176601G 21176616K 21176636F1” 9169804D 21176603E 21176617J 21176636F

1 1/4” 9169804D 21176603E 21176617J 21176636F1 1/2” 9169804D 21176603E 21176617J 21176636F

2” 9169805A 21176608K 21176618H 21176637E2 1/2” 9169811J 21176609J 21176619G 21176638D

3” 9169812G 21176604D 21176620D 21176639C4” 9169813E 21176605C 21176621C 21176640K6” 9169815K 21176606B 21176622B 21176641J8” 9817901D 21176607A 21176623A 21176642H

10” 9817902B 21176610F 21176624K 21176643G12” 9817903K 21176611E 21176625J 21176644F14” 9817904H 21176612D 21176626H 21176645E16” 9817905E 21176613C 21176627G 21176645E

Consult factory for larger sizes

BUNA-N MATERIALRUBBER KIT REPAIR KIT REBUILD KIT STUD & NUT KITSTOCK NO. STOCK NO. STOCK NO. STOCK NO.

3” 9169805A 21176608K 21176618H 21176637E4” 9169812G 21176604D 21176620D 21176639C6” 9169813E 21176605C 21176621C 21176640K8” 9169815K 21176606B 21176622B 21176641J

10” 9817901D 21176607A 21176623A 21176642H12” 9817902B 21176610F 21176624K 21176643G14” 9817903K 21176611E 21176625J 21176644F16” 9817903K 21176611E 21176625J 21176644F

Model 100-01 Hytrol Main Valve

Model 100-20 Hytrol Main Valve

Rubber Kit Includes: Diaphragm, Disc, Spacer Washers

Repair Kit Includes: Diaphragm, Disc, Spacer Washers, Epoxy Coated Disc Retainer, Epoxy Coated Diaphragm Washer, Protective Washer

Rebuild Kit Includes: Diaphragm, Disc, Spacer Washers, Epoxy Coated Disc Retainer, Epoxy Coated Diaphragm Washer, Protective Washer, Stainless Steel Bolts & Washers (6" & Below), Stainless Steel Studs, Nuts, & Washers (8" & Above), Stem, Stem Nut, Disc Guide

Stud & Nut Kit Includes: Stainless Steel Bolts & Washers (6" & Below), Stainless Steel Studs, Nuts, & Washers (8" & Above)

Repair Kits for 100-04/100-23 Hy-Check Main ValvesFor: Hy-Check Main Valves—150 Pressure Class Only Includes: Diaphragm, Disc and O-Rings and full set of spare Spacer Washers.

Larger Sizes: Consult Factory.

Repair Kits for 100-02/100-21 Powertrol and 100-03/100-22 Powercheck Main ValvesFor: Powertrol and Powercheck Main Valves—150 Pressure Class Only Includes: Diaphragm, Disc (or Disc Assembly) and O-rings and full set of spare Spacer Washers.

Repair Kits for Pilot Control Valves (In Standard Materials Only)Includes: Diaphragm, Disc (or Disc Assembly), O-Rings, Gaskets or spare Screws as appropriate.

Repair Assemblies (In Standard Materials Only)

CLA-VAL Copyright Cla-Val 2018 Printed in USA Specifications subject to change without notice. 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: [email protected] • www.cla-val.com

© N-RK (R-08/2018)

ValveSize

Kit Stock Number100-02

ValveSize

Kit Stock Number100-02 & 100-03 100-21 & 100-22

3⁄8” 9169901H 21⁄2” 9169910J N/A1⁄2” & 3⁄4” 9169902F 3” 9169911G 9169905J

1” 9169903D 4” 9169912E 9169911G11⁄4” & 11⁄2” 9169904B 6” 9169913C 9169912E

2” 9169905J 8” 99116G 9169913C10” 9169939H 99116G12” 9169937B 9169939H

ValveSize

Kit Stock Number ValveSize

Kit Stock Number100-04 100-23 100-04 100-23

4” 20210901B N/A 12” 20210905H 20210904J6” 20210902A 20210901B 14” 20210906G N/A8” 20210903K 20210902A 16” 20210907F 20210905H

10” 20210904J 20210903K 20” N/A 20210907F24” N/A 20210907F

BUNA-N® (Standard Material) VITON (For KB Controls)Pilot

ControlKit StockNumber

PilotControl

Kit StockNumber

PilotControl

Kit StockNumber

CDB 9170006C CFM-9 12223E CDB-KB 9170012ACDB-30 9170023H CRA (w/bucking spring) 9170001D CRA-KB N/ACDB-31 9170024F CRD (w/bucking spring) 9170002B CRD-KB (w/bucking spring) 9170008JCDB-7 9170017K CRD (no bucking spring) 9170003K CRL-KB 9170013JCDH-2 18225D CRD-18 20275401K CDHS-2BKB 9170010ECDHS-2 44607A CRD-22 98923G CDHS-2FKB 9170011CCDHS-2B 9170004H CRL (55F, 55L) 9170007A CDHS-18KB (no bucking spring) 9170009GCDHS-2F 9170005E CRL60/55L-60 9170033G 102C-KB 1726202DCDHS-3C-A2 24657K CRL60/55L60 1" 9170042HCDHS-8A 2666901A CRL-4A 43413ECDHS-18 9170003K CRL-5 (55B) 65755BCDS-4 9170014G CRL-5A (55G) 20666ECDS-5 14200A CRL-18 20309801CCDS-6 20119301A Universal CRL 9170041KCDS-6A 20349401C CV 9170019FCFCM-M1 1222301C X105L (O-ring) 00951E Buna-N®CFM-2 12223E 102B-1 1502201FCFM-7 1263901K 102C-2 1726201F CRD Disc Ret. (Solid) C5256HCFM-7A 1263901K 102C-3 1726201F CRD Disc Ret. (Spring) C5255K

Control Description Stock NumberCF1-C1 Pilot Assembly Only 89541HCF1-Cl Complete Float Control less Ball and Rod 89016ACFC2-C1 Disc, Distributor and Seals 2674701ECSM 11-A2-2 Mechanical Parts Assembly 97544BCSM 11-A2-2 Pilot Assembly Only 18053K33A 1” Complete Internal Assembly and Seal 2036030B33A 2” Complete Internal Assembly and Seal 2040830J

When ordering, please give complete nameplate data of the valve and/or control being repaired. MINIMUM ORDER CHARGE APPLIES

Larger Sizes: Consult Factory.

50b-4kg1/2050b-4kg1 - cla-val manuals/tm-50b-4kg… · the cla-val 50b-4kg1 and 2050b-4kg1 pressure...

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