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Worm Gear Wafer High Performance Butterfly Valves Used In Chemical

Categories Butterfly Valves
Brand Name: OEM
Model Number: D71X / D371X
Certification: ISO 9001 / CE
Place of Origin: Shanghai , China
MOQ: 1pcs
Price: negotiation
Payment Terms: T/T advance or L/C at sight
Supply Ability: 90,000pcs per month
Delivery Time: 1usually within 35 days after received your payment
Packaging Details: Usually packing by plywood case suit for sea delivery
Structer: butterfly valve
Application: Sewage, water etc.,
Size: DN50 ~DN3000
Pressure: PN10
Standard: DIN / BS / AWWA / JIS
Temperature: -20~120 C
Body: Cast iron/ ductile iron/ stainless steel
Disc/wedge: Ductile iron/ Stainless steel/ SS304/SS316
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Worm Gear Wafer High Performance Butterfly Valves Used In Chemical


Worm Gear Wafer High Performance Butterfly Valves Used In Chemical


Worm Gear Wafer Butterfly Valve, used in Chemical/Petrochemical Processing, Food & Beverage etc.,


Wafer butterfly valves adopt different material, different seal ring, suitable for different medium. Widely

used in Chemical/Petrochemical Processing, Food & Beverage, Power & Utilities, Pulp & Paper etc.


Key feature and benefits


Light weight;Good wear resistance;Compact structure;Low flow resistance;Small operation torque


Easy to install and maintain



Part Material
NO.PART NAMEMATERIAL
1BodyWCB,Cast Iron
2DiscWCB,Cast Iron,SS304
3Shaft2Cr13,SS304,SS316
4Seal RingEPDM/NBR
5PakingO-ring

Technical Specification
Nominal Pressure:1.0~1.6MPa
DN:40~1000mm
Medium: water,oil,gas
Work temperature: ≤120℃
Design Standard:BS5163
Flange Standard:BS EN 1092
OTHER STANDARD ARE AVAILABLE UPON REQUEST.

DN506580100125150200250300350400
L43464652565660687878102
H637083105115137164206230248289
Ho306321346387411447572646738761877
A180180180180180270270270380380450
B200200200200200280280280420420470
D0(1.0MPa)110130150170200225295350400445495
N-d(1.0MPa)4-144-144-184-188-188-188-1812-1812-2212-2216-22
D0(1.6MPa)125145160180210240295350410460515
N-d(1.6MPa)4-184-188-188-188-188-228-2212-2212-2216-2216-22

Specifications:


Wafer Butterfly Valve


1. Optional cast iron body and WPDM seat


2 . Smaller torque, better sealing



Size: DN50 - 3000
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa

Materials
Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel


Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,

Titanium Steel, Copper Alloy etc


Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),

Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),

Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.


Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13


A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe.
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe.
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow,
therefore a pressure drop is always induced in the flow regardless of valve position.


Wafer Rubber Seated Butterfly Valves

DN
(mm)

PN
(MPa)

Connection dimensions(mm)

L

D

D1

Zφd

40

1.0/1.6

43

145

110

4-18

50

43

165

125

4-18

65

46

185

145

4-18

80

46

200

160

4-18/8-18

100

52

220

180

8-18

125

56

250

210

8-18

150

56

285

240

8-22

200

60

340

295

8-22/12-22

250

68

395/405

350/355

12-22

300

78

445/460

400/410

12-22

350

1.0

78

505

460

16-22

400

102

565

515

16-26

450

114

615

565

20-26

500

127

670

620

20-26

600

154

780

725

20-30

700

165

895

840

24-30

800

190

1015

950

24-33

900

203

1115

1050

28-33

1000

216

1230

1160

28-39

1200

254

1455

1380

32-39

1200

0.6/0.25

254

1400/1375

1340/1320

32-34/32-30

1400

279

1620/1575

1560/1620

36-34/36-30

1600

318

1820/1785

1760/1730

40-34/40-30

1800

356

2045/1985

1970/1930

44-41/44-30

2000

406

2265/2185

2180/2130

48-48/48-30



Product Advantages:

1) Small in size and light in weight and maintaince.
It can be mounted whereever needed.

2) Simple, compact structure, quick 90 degree on-off operation.

3) Disc has two-way bearing, perfect seal, without leakage under
the pressure test.

4) Flow curve tending to straight-line. Excellent regulation performance.

5) Various kinds of materials, applicable to different medium.

6) Strong wash and brush resistance and can fit to bad working condition.
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