valves brochure
TRANSCRIPT
Waterworks Valves
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The Eccentric Plug Valve range provides perfect solutions for difficult
applications
Eccentric Plug Valves
Quality manufacturingManufactured in cast iron, using highpressure moulding techniques forconsistent quality and precision, theEccentric Plug Valve also incorporates anepoxy or a nickel weld deposited seat forcorrosion resistance, specially profiled forlow torque and extended seat life.
The Eccentric Plug Valve is trunnionsupported and fully encapsulated in anelastomeric polymer. The valve body isfully internally and externally Epoxy coated as standard. A rubber lined option
is also available.
Offering a high flow capacity with a roundport design in sizes up to DN300 (largersizes have rectangular ports), the EccentricPlug Valve design ensures that the ductileiron plug rotates away from the seat assoon as movement begins, avoidingscuffing and thereby enhancing lifeexpectancy.
Wide variety of applicationsAvailable with EPDM, Nitrile, Natural andViton Rubber encapsulated plugs,Eccentric Plug Valves can be used for awide range of flow control and isolationapplications including clean and dirtywater, sewage, sludge and slurries, air andother services. The Eccentric Plug Valvecan be used to isolate and regulate any ofthese services bi-directionally.
Item Component1 Socket Cap Screw2 Retaining Washer3 Open Stop4 Washer5 Nut6 Torque Collar7 Lock Nut
8 Torque Bolt9 Lock Nut10 Closed Stop11 Travel Stop12 Snap Ring13 Washer14 U-Cup Seal15 Capscrew
16 Bonnet17 ‘O’ Ring18 Journal Bearing19 Thrust Washer20 Plug21 Plug Elastomer22 Body
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Materials specification
Design featuresBodyThe Eccentric Plug Valve body casting isin BS1452 Grade 220 (ASTM A126Class B) cast iron using high pressuremoulding techniques for consistentquality and precision.
Flanges are available drilled to PN16,PN10 or ANSI B16.1 Class 125.
SeatOn sizes DN80 and above, theEccentric Plug Valve incorporates, as standard, a welded nickel seat forcorrosion and erosion resistance,specially profiled for low torque andextended seat life.
An alternative corrosion resistant epoxyseat is also available for general duties.
Stem sealHigh integrity sealing is achieved bycombining the advantages of a resilient,abrasion resistant lip seal.
From vacuum to high pressure, the self-adjusting sealing system givespositive, trouble-free service and isretained independently of the plug stem or external torque device.
BearingsThe plug rotates in permanentlylubricated austenitic stainless steelbearings (sizes DN600 and above havebronze bearings) located in the body andbonnet, along with two PTFE thrustwashers, which ensure consistently lowoperating torque.
PlugThe ductile iron plug is supported onintegral trunnions, and is encapsulatedin an elastomeric polymer, providingleaktight shut-off in either direction,even under vacuum conditions.
High integrity sealing is achieved by anyof the abrasion resistant elastomers. ThePTFE thrust washers prevent entry ofabrasive materials into the bearings.
BonnetSuperior ‘O’ ring sealing on sizes up toDN800 means lower bolting stressescompared with compression gaskets.Asbestos-free gaskets are used on sizesDN900 and above.
FlowThe round port design (up to andincluding DN300) with streamlinedinternal contours gives classleading high capacity straightthrough flow in the full openposition, reducing turbulence,pressure drop and the effectof erosive media. Flow ofsludges and slurries istherefore also enhanced.
Sizes DN350 and above haverectangular ports.
InterchangeableThe face-to-face dimensions onsizes DN300 and below areidentical to BS5163 gate valves.Therefore, fitting an Eccentric PlugValve as a replacement for a gatevalve can be accomplished withoutpipeline modification.
Position indicationEccentric Plug Valves equippedwith a torque collar have openand closed travel stops and arefitted with an intermediateposition indicator.
Component Material Specification
Combiningsimplicity of
design and highquality
manufacturing
SpecificationComponent Material BS ASTM DIN
Torque collar (up to DN200) Cast iron 1452 Gr 220 A126 CLB 1691 GG25
U-cup seal As plug coating
Bonnet Cast iron 1452 Gr 220 A126 CLB 1691 GG25
‘O’ ring (up to DN700) As plug coating
Gasket (DN900 and above) Asbestos-free
Bearings (up to DN500) Stainless steel(permanently lubricated)
(DN600 and above) Bronze (permanently lubricated)
Thrust water PTFE
Plug Ductile iron 2789 Gr 500/7 A536 1693 GGG-40
Plug elastomer As specified
Body Cast iron 1452 Gr 220 A126 CLB 1691 GG25
Installation Examples
Anglian Water Whittlesea WTW
Scottish Water Dalmuir to Shieldhall
Dalmarnock to Daldowie
Severn Trent Water Droitwich STW
Mansfield STW
Meols STW
Roundhill STW
Sutton in Ashfield STW
South West Water Newquay WWTW
Pynes WWTW
Southern Water Canterbury STW
Fullerton STW
Newham WWTW
Thames Water Harwich & Dovercourt WWTW
Riverside STW
United Utilities Davyhulme STW
Ribble Sludge STW
Whitehaven STW
Welsh Water Cardigan Bay STW
Cardiff STW
Pen y Bont WTW
Trecastell WTW
Yorkshire Water Lundwood STW
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Eccentric Plug Valve - DN65 to DN300
Pressure Rating PN16Maximum cwp 16 bar
Hydrostatic TestShell: 24 barSeat: 17.6 bar
Class 125Maximum cwp 175 lbf/in
2
Hydrostatic TestShell: 350 lbf/in
2
Seat: 220 lbf/in2
Velocity LimitNon-abrasive:10 m/s (30 ft/s)
Abrasive (on/off service): 5 m/s (15 ft/s)
Air: 50 m/s (150ft/s)
Eccentric Plug Valves
Dimensions
Nominal Size mm 65 80 100 125 150 200 250 300 350
in 21/2 3 4 5 6 8 10 12 14
A (PN16) mm 191 203 229 254 267 292 330 356 432
(Class125) in 71/2 8 9 10 101/2 111/2 13 14 17
B (Wrench) mm 159 159 184 213 213 273 289 330 330
in 61/4 61/4 71/4 83/8 83/8 103/4 113/8 13 13
B (Geared) mm - - 162 194 194 241 292 333 333
in - - 63/8 75/8 75/8 91/2 111/2 131/8 131/8
D (PN16) mm 178 191 229 254 279 343 406 483 533
(Class 125) in 7 71/2 9 10 11 131/2 16 19 21
N mm - - 152 305 305 305 305 305 305
in - - 6 12 12 12 12 12 12
O mm 67 67 67 67 67 67 118 118 118
in 25/8 25/8 25/8 25/8 25/8 25/8 45/8 45/8 45/8
T* mm 241 241 241 241 241 286 295 295 295
in 91/2 91/2 91/2 91/2 91/2 111/4 115/8 115/8 115/8
Weight (Class 125)
(Wrench) kg 13 18 30 37 43 86
(Geared) kg 29 34 46 53 59 102 152 196 240
* Centre of body to face of handwheel
Features and options
• Round port design for full flow
• Nickel welded seat
• Epoxy seat optionally available (max temp 50°C)
• Variety of flange connections available
• Elastomer encapsulated ductile iron plug
• DN65 - DN200 have a 50mm squaredrive, suitable for a standardwaterworks T-key
• Epoxy coated inside and out
• Optional power operation
• Flange drillings: PN10, PN16, ANSI
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Eccentric Plug Valves
Eccentric Plug Valve - DN350 and above
Pressure Rating PN16Maximum cwp 16 bar
Hydrostatic TestShell: 24 barSeat: 17.6 bar
Class 125Maximum cwp 150 lbf/in
2
Hydrostatic TestShell: 265 lbf/in
2
Seat: 165 lbf/in2
Velocity LimitNon-abrasive: 10 m/s (30 ft/s)Abrasive (on/off service): 5 m/s (15 ft/s)Air: 50m/s (150ft/s)
Dimensions
Nominal Size mm 400 450 500 600 700 900 1000 1200 1400
in 16 18 20 24 30 36 42 48 54
A (PN16) mm 451 546 597 1067 1295 1524 1829 2134 2438
(ANSI 125) in 173/4 211/2 231/2 42 51 60 72 84 96
B mm 406 432 521 584 705 838 960 960 960
in 16 17 201/2 23 273/4 33 373/4 373/4 373/4
C mm 356 381 400 549 629 737 737 914 914
in 14 15 16 215/8 243/4 29 29 36 36
D (PN16) mm 591 635 699 813 984 1168 1346 1511 1683
(ANSI 125) in 231/2 25 271/2 32 383/4 46 53 591/2 661/4
N mm 457 457 457 610 610 610 765 765 765
in 18 18 18 24 24 24 30 30 30
O mm 117 117 117 152 238 238 - - -
in 45/8 45/8 45/8 6 93/8 93/8 - - -
T mm 381 381 381 457 559 610 - - -
in 15 15 15 18 22 24 - - -Weight kg 470 615 855 1730 2360 3160 4620 6070 6870(gear operated)
Features and options
• Rectangular ports
• Nickel welded seat
• Variety of flanged connections available
• Gear operated
• Optional power actuation
• Elastomer faced ductile iron plug
• Sizes above DN1400, details availableon request
• Flange drillings: PN10, PN16, ANSI
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Eccentric Plug Valves
Rubber lined Eccentric Plug Valve PN16 - DN65 to DN300
Pressure Rating PN16Maximum cwp 16 bar
Hydrostatic TestShell: 24 barSeat: 17.6 bar
Velocity LimitAbrasive (on/off service): 5m/s (15ft/s)
Features and options
• Natural rubber body lining
• Natural rubber encapsulated ductile iron plug
• DN80 - DN200 have a 50mmsquare drive, suitable for a standardwaterworks T-key
• Gear operation optionally available
• Optional power operation
• Flange drillings: PN10, PN16, ANSI
DimensionsNominal Size mm 80 100 125 150 200 250 300 350
in 3 4 5 6 8 10 12 14
A# (PN16) mm 203 229 254 267 292 330 356 432
(Class125) in 8 9 10 101/2 111/2 13 14 17
B (Wrench) mm 159 184 213 213 273 289 330 330
in 61/4 71/4 83/8 83/8 103/4 113/8 13 13
B (Geared) mm - 162 194 194 241 292 333 333
in - 63/8 75/8 75/8 91/2 111/2 131/8 131/8
D (PN16) mm 191 229 254 279 343 406 483 533
(Class 125) in 71/2 9 10 11 131/2 16 19 21
N mm - 152 305 305 305 305 305 305
in - 6 12 12 12 12 12 12
O mm 67 67 67 67 67 118 118 118
in 25/8 25/8 25/8 25/8 25/8 45/8 45/8 45/8
T* mm 241 241 241 241 286 295 295 295
in 91/2 91/2 91/2 91/2 111/4 115/8 115/8 115/8
Weight - (Wrench) kg 18 30 37 43 86
(Geared) kg 34 46 53 59 102 152 196 240
# Excludes thickness of rubber on face of flanges
*Centre of body to face of handwheel
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The FlexCheck Valve is engineered to consistently deliver
dependable, maintenance-freeperformance
FlexCheck eliminates water hammerWater hammer, noise, high maintenance – if these sound like your typical check valveproblems then Viking Johnson have thesolution.
Introducing the Hattersley FlexCheck Its simple yet ingenious design features aprecision moulded fully-encapsulated steeldisc, incorporating nylon reinforcement inthe flex hinge. The ‘O’ ring profile seat faceensures a bubble-tight shut-off, sopreventing back flow at high and lowworking pressures.
The seating surface is at a 45 degree angle,moderating disc travel and permittingoptimum flow rates. The disc’s resulting 35 degree stroke is less than half the typical80 or 90 degrees of a traditional swingcheck valves swing. Combine this with itsflexible action results in significantlyreduced valve closing time, flow reversaland both slam and ‘water hammer’ effects.All this enables installations in far morevaried applications than traditional swingcheck valves. Close coupling to pumps,tees, other valves or accessories is also nota problem for this versatile product.
Developed primarily for use in water andwastewater applications, the HattersleyFlexCheck valve is engineered to deliverdependable, maintenance-free performanceover extended periods.
Manufactured from durable ductile iron, theunit comprises only three parts: body,bonnet and disc. The absence of movingparts minimises the risk of clogging andmaximises operational reliability.
Standard features include 100% full-flowarea and an epoxy-lined interior. A rubber-lined version is also available,ideally suited to the conveyance of abrasiveor corrosive fluids.
FlexCheck is suitable for installation inhorizontal or vertical pipes (flow must beupwards in vertical installations). Its in-builtdurability is demonstrated through anindependent rigorous 1,000,000 continuouscycle test and the hinge alone carries thereassurance of a 25-year guarantee.
FlexCheck is supplied drilled and tapped forinstallation of the optional back-flushingdevice, commonly used for priming, back-flushing, draining and system testing. Also available are valve-mounted proximitysensors to indicate the closed position ofthe disc.
FlexCheck is the perfect solution to noise,water hammer and high maintenance.
FlexCheck® - Flexible Disc Check Valve
9
250
8.0203
2.051
3.486
8.4213
12
21/265
8.5216
2.564
3.486
8.4213
15
380
9.5241
3.076
3.999
9.0229
19
4100
11.5292
4.0102
4.6118
9.6245
27
5125
13.8349
5.0127
5.1130
10.3260
42
6150
15.0381
6.0152
5.9149
11.0279
52
8200
19.5495
8.0203
7.6194
13.8349
100
10250
24.5622
10.0254
9.9251
16.0406
190
12300
27.5698
12.0305
11.4289
18.5470
270
14350
31.0787
14.0356
13.4340
20.5521
-
16400
32.0813
16.0406
15.4391
23.5597
-
18450
36.0914
18.0457
17.1435
25.3641
-
20500
40.01016
20.0508
19.1485
29.3743
-
24600
48.01219
24.0610
22.8578
32.8832
-
Dimensions - ‘D’ Clearance required to remove access cover
in mm
in mm
in mm
in mm
Valve Size
A
B
C
D
Weight (kg)
Pressure Rating PN16Maximum cwp 16 bar
Hydrostatic TestShell: 24 barSeat: 17.6 bar
Class 125Maximum cwp 175 lbf/in
2
Hydrostatic TestShell: 350 lbf/in
2
Seat: 220 lbf/in2
Material specificationNo. Description Material BS ASTM
1 Body Ductile Iron EN 1563:EN-JS1040 A-536-GR 65-45-12
2 Bonnet Ductile Iron EN 1563:EN-JS1040 A-536-GR 65-45-12
3 Resilient Gasket Nitrile
4 Disc Steel/Nitrile 970:070 M20 A36/D-2000
5 Bonnet Bolts Steel
6 Interior Lining Epoxy
7 Plug Malleable Iron
FlexCheck Valve DN50 to DN600
Features and options
• Ductile iron body and bonnet
• Fully moulded disk assembly
• Nylon reinforced hinge
• Temperature rating - (Nitrile) 0°C to 90°C- (EPDM) 10°C to 120°C
• External backflush device (DN50 - DN600)
• Rubber lining (DN80 - DN600)
• Closed proximity sensor
• Flange drillings: PN10, PN16, ANSI
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MultiPort Plug Valves
Design features
The MultiPort Plug Valve is a 3-way,non-lubricated diverter valve. It featuresan internally epoxy coated body and anelastomer coated plug face.
Materials
Valve bodies are BS1452 Gr 220 cast iron.Plugs are ductile iron to BS2789 Grade 500/7.
Features and benefits
The valve operates without the need for lifting prior to turning the plug.
Valves are furnished with replaceablesleeve type bearings which are ofsintered, oil impregnated austeniticstainless steel. Valve shaft seals are ‘U’ cup, self adjusting and replaceable
without removing the bonnet from the valve. The valve bonnet seal is an ‘O’ ring allowing metal to metalbody/bonnet contact.
Operation
Wrench operated valves DN50 -DN200, are capable of being convertedto worm gear or automated operationwithout removing the bonnet or plugfrom the valve. All wrench operatedvalves are equipped with a 50mmsquare drive for use with removablelevers or a waterworks T-key.
Worm gear operators, where required,are of a heavy duty construction with a ductile iron quadrant supported by oil impregnated bronze bearings. Theworm gear and shaft are manufacturedfrom hardened steel and supported inroller bearings.
Many other styles available.
Port configuration examples
Style Port Positions Always Open Alternately Closed
C Ports 1 & 2 Port 3
E Port 3 Ports 1 & 2
G Port 2 Ports 1 & 3
3-WAY, 3 PORT, 180° TURN
2
1
2
3-WAY, 3 PORT, 90° TURN
2
1
1
3
3
3
3-WAY, 3 PORT, 90° TURN
MultiPort 3-Way Plug Valvesoffer the perfect solution for flow diversion and control
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MultiPort Plug Valves
Pressure Rating PN16Maximum cwp 16 bar
Hydrostatic TestShell: 24 barSeat: 17.6 bar
Class 125Maximum cwp 175 lbf/in
2
Hydrostatic TestShell: 350 lbf/in
2
Seat: 220 lbf/in2
Velocity LimitNon-abrasive: 5m/s (15ft/s)Abrasive (on/off service): 3m/s (10ft/s)
Features and options
• Valves up to and including DN200 aresupplied with a 50mm square drivefor use with optional removable levers
• Gear or actuator operation is available
• Internally epoxy coated
• Elastomer faced plug
• Flanges drilled to BS EN 1092 PN16
• Variety of flange drillings available
• Nitrile faced plug
• Optional Viton or EPDM faced plug
• Flange drillings: PN10, PN16, ANSI
Materials specification
SpecificationComponent Material BS ASTM DIN
Collar Cast Iron 1452 Gr 220 A126 CI B 1691 GG22
U-Cup Seal Nitrile
Bonnet Cast Iron 1452 Gr 220 A126 CI B 1691 GG22
‘O’ Ring Nitrile
Bearing Stainless Steel
(Permanently Lubricated)
Plug SG Iron 2789 Gr 500/7 A536
Plug Elastomer Nitrile
Body Cast Iron 1452 Gr 220 A126 Cl B 1691 GG25
DimensionsNominal Size mm 80 100 150 200 250 300 350 400
in 3 4 6 8 10 12 14 16
A mm 203 251 295 352 425 483 533 578
in 8 97/8 115/8 137/8 163/4 19 21 223/4
B mm 230 346 384 485 485 539 552 568
in 91/8 135/8 151/8 191/8 191/8 211/4 213/4 223/8
C mm 120 150 181 279 279 327 362 375
in 43/4 6 71/8 11 11 127/8 141/4 143/4
D mm 191 229 279 343 406 483 533 597
in 71/2 9 11 131/2 16 19 21 231/2
E mm 140 165 203 229 279 295 318 384
in 51/2 61/2 8 9 11 115/8 121/2 151/8
H* mm 384 486 518 622 622 673
(gear operated) in 151/8 191/8 203/8 241/2 241/2 261/8
Weight kg 30 55 77 147 173 220(bare shaft)
* Centre line of valve to top of gear operator handwheel.
D0575Sept 2004
Viking Johnson46-48 Wilbury WayHitchin HertfordshireSG4 0UDUnited KingdomTel: +44 (0)1462 443322Fax: +44 (0)1462 443311email: [email protected]
ISO 9001 ISO 14001
For further information on all Viking Johnson products and services contact our Marketing Department.
All specifications are subject to change.