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Quick Details

  • Standard or Nonstandard: Standard
  • Structure: Butterfly
  • Pressure: Low Pressure
  • Power: Manual
  • Material: Casting
  • Temperature of Media: Normal Temperature
  • Media: Water
  • Port Size: AWWA C207/ASME N16.5 ,ASME B 16.47
  • Place of Origin: Zhejiang, China (Mainland)
  • Model Number: SD371
  • Brand Name: JSV
  • Application: General
  • Butterfly valve material: QT450/ WCB / 304SS / 316SS / LCC /C95800
  • Butterfly valve disc: QT450 /WCB / 304SS / 316SS / LCC /C95800
  • Butterfly valve stem: 2Cr13 / 304ss / 316ss / 2205 / 17-4PH / c95800
  • Norminal Diameter: 2"~72"
  • Norminal Pressure: 150LB
  • Suitable Temperature: -29℃~80℃
  • Flange Connection: AWWA C207, ASME B16.5 ,ASME B 16.47, ASME B16.1
  • Design & Manufacture: AWWA C504, API 609 TYPE B
  • Face to Face Dimension: AWWA C504, API 609
  • Test & Inspection: AWWA C504, API 598

Packaging & Delivery

Packaging Details Free of Fumigation Box: plywood boxes.
Delivery Time 5-25 Days


Product Description



Double Eccentric Soft Seal A216 WCB Carbon Steel Butterfly Valve

1. Purpose:

The butterfly valves are designed as a device to shut-off or regulate the working medium flow and installed in industrial pipelines with medium of water, oil and air in water plant, power plant,  petroleum, metallurgy, chemical industry, construction, municipal engineering and etc.


2. Features & Benefits:

1) Double eccentric disc provides a very low friction torque, rapid open-close, excellent operation, light weight and labor saving.

2) Double eccentric seat provides a very low friction, wear resistance and long life service.

3) Sealing rings fixed in the disc by screw are easily adjusted and replaced.

4) Zero leakage sealing in bi-directional.


3. Standard:

 Design & ManufactureAWWA C504, API 609 TYPE B
 Flange ConnectionAWWA C207, ASME B16.5 ,ASME B 16.47, ASME B16.1
 Face to Face DimensionAWWA C504, API 609
 Test & InspectionAWWA C504, API 598


4. Material Specification:

1End CapCarbon Steel, Stainless Steel 
2GasketO-Ring, PTFE, Asbestos Sheet
3Thrust RingCarbon Steel, Stainless Steel
4BushingBronze, PTFE, Stainless Steel
5BodyGray Cast Iron, Ductile Iron, Cast Steel, Stainless Steel
7DiscGray Cast Iron, Ductile Iron, Cast Steel, Stainless Steel, Aluminium Bronze
8Shaft2Cr13, 1Cr18Ni9Ti, 304, 316, 316L Stainless Steel
8Shaft Pin2Cr13, 1Cr18Ni9Ti, 304, 316, 316L Stainless Steel
9Packing or "O" ringNBR, EPDM, PTFE, VITON 
10Packing GlandDuctile Iron, Carbon Steel, Stainless Steel, Bronze
11YokeCast Iron, Cast Steel
12Worm GearCast Iron, Ductile Iron, Carbon Steel
13Hand Lever, Hand Wheel Ductile Iron, Malleable Cast Iron, Carbon Steel


4. Samples & Packing:





5. Applicable Temperature: -29°C~80°C

6.Applicable Medium: Water, air, natural gas, petroleum products and weak corrosive medium.

7. Operating Type: Worm gear, electric, pneumatic, hydraulic, electro-hydraulic, etc.

8. Leakage Rate: In accordance with GB/T13927-2008 A.




Related Products



Our Services


Professional: We are professional manufacturer of valves.Ensure our valves is quality controlled and reliable


Quality Control: We have been engaged in valve design for many year and can guarantee best quality


Experienced Sales Team: Our sales team is experienced, and they all know our product well.


About Price: we provide very reasonable and competitive price for you


Company Information


 Business type : Manufacture Trading Company 

Location : Zhejiang China (Mainland)

Year Established : 1995

Main product metal to metal butterfly valves, rubber sealing butterfly valves, hydraulic butterfly valves, telescopic butterfly valves,  and etc.

At present, we mainly produce/manufacture "ISO, API, ANSI, DIN, BS, EN, GB, JB" standard valves, also special valves according to the requirement of clients.


Workshop Situation

  we have own factory :


 Body process:



Sealing process:







How to contact us

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