High Quality Stainless Steel Wafer Check Valve China Supplier,Double plate wafer type stainless steel check valve
dual plate wafer check valve
Double plate wafer type stainless steel check valve is a streamlined venture port design so as to reduce pressure loss. This series valve disc is the only moving part to minimize internal wear and compressed disc spring initiates valve closure as flow slows down and provides quick reaction on flow velocity change. It can be used in a wide range of critical and demanding services applications such as fast reversing reciprocating compressor system or installations where the check valve must be placed in close proximity to the pump inlet or outlet.
Dual plate check valve has retainer and retainer-less type design. Dual plate check valves have the advantage of zero leakage toward outside, cost saving. It can be installed in any line orientation, superior seal performance. Valves are designed in accordance to API 594 and have dual plate or single plate design and pin can be retainer-less type.
Product range
- Valve size: 2"-40" (DN50-DN1000)
- Pressure: ANSI class 150-2500(PN16-PN420)
- Temperatures: - 196°C- 500°C
- Body materials: carbon steel, stainless steel, alloy steel, duplex steel
- Trim (disc/stem): carbon steel, stainless steel, duplex steel, alloy steel
Technical specifications
-Design: ASME 16.34/API 594/API 6D
-Face to face: ASME B16.10
-End flange: ASME B16.5, ASME B16.47
-BW end: ASME B16.25
-Test: API 598/API 6D/ BS 6755
-Special: NACE MR-01-75
Design features
- Venturi port to reduce pressure loss
- Spring protection and no impact
- Low noise and lower water hammer damager
- Soft seal and second metal to metal seal to ensure fire safe
- Full series with lugs and support legs
- No outside leakage
Pressure and Temperature ratings:
|
Working Pressure |
PN10 / PN16 |
|
Testing Pressure |
Shell: 1.5 times rated pressure,
Seat: 1.1 times rated pressure. |
|
Working Temperature |
-10°C to 80°C (NBR)
-10°C to 120°C (EPDM) |
|
Suitable Media |
Water, sewage etc. |
Materials
|
Part |
Material |
|
Body |
Cast iron / Ductile Iron/Carbon steel/ stianless steel |
|
Disc |
Ductile Iron + EPDM, stainless steel |
|
Spring |
Stainless Steel |
|
Shaft |
Stainless Steel |
|
Seat Ring |
NBR / EPDM |
Usage:
This kind of check valve is mainly used for systems in the industries of petroleum, chemistry, textile, paper- making, water supply and drainage, metallurgy, energy etc.
Other products
Why Choose US
Our factory is specialized in valves' production. As one of the biggest and most professional manufacturer and exporter majored in valves, we assure that we can provide our products with cheapest price, good quality and best service. If you like, welcome to our factory and have a look!
We test leakage of each roll before braiding, then we cut 300mm and crimp it to test
burst pressure after brading.
We use CNC Lathes Machine for end fittings production. Machine system, knife and inspection
tools are all imported from Japan.
We use Techmaflex Crimping Machine which is imported from France. This machine has
accurate and stable performance for crimping because it is produced for PTFE hose crimping only.
Contact to this supplier
http: xbvalve.en.made-in-china.com xbvalve.en.made-in-china.com
Audited Supplier 
){kind=link}
){kind=link}