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Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber

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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Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber


Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber


butterfly valves pn16 wafer type and concentric design, WRAS,DVGW rubber avaibable


  • Valve body is designed to meet MSS SP-67 and API609.
  • Upper flange standards: Valve mounting flange and stem shall be per ISO 5211.
  • Flange Standard: GB 9113.1N ANSI 150 B16.5,JIS B2211.
  • Pressure Rating:
  • Bi-directional bubble-tight shut off to: 16 bar(230psi) DN40~DN600mm
  • And tested to 110% of full rating: 18 bar(260psi) DN40~DN600mm
  • Shell Testing:
  • The body strength can stand 150% of full rating: 24 bar(340psi) DN40~DN600mm

Main Features

  • Tight sealing and zero leakage under rated pressure(1 .OMpa,1.6Mpa).
  • Multi-sealing design separates valve body from working media to ensure zero leakage.
  • Main parts are designed to fit exactly into each other to ensure a better sealing, smaller torque, bigger flow, lower fluid resistance as well as flexible two-side flow.
  • Scientific design for the sealing surface of valve seat makes a closed connection between the valve and the pipe flange without any additional ccessories.
  • Designed and produced based on multi-standard system, so the valve could be applied to various of flange and enjoy excellent interchangability.
  • All parts are embalmed, suitable for various complex work environment.
  • Others: According to customer requirements.


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.
Quality Stainless Steel Butterfly Valves PN16 Concentric Design WRAS DVGW Rubber for sale
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