Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications.
Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive.
Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies of most check valves are made of plastic or metal.
PTFE Seat Wafer Dual Check Valve
1. Nominal diameter: 2" - 24" (DN50 - DN600)
2. Pressure range: Class 150 - Class 2500 (PN16 - PN150)
3. Working temperature: -196℃ - +560℃
4. Body material: Carbon steel, Stainless steel, Alloy steel, Bronze
5. End connection: RF, RTJ, BW
Non-slam principle of operation
Suitable for horizontal and vertical up flow
Good flow characteristic and less pressure drop
ball valve, gate valve, check valve, plug valve, globe valve, butterfly valve, control valve ,strainers,etc
API, DIN, JIS, GOST ,etc
Stainless steel: A351 CF8, A351 CF8M, A182F304, A182F316,etc
Carbon steel: A105, A216 WCB, G25, etc
Alloy steel: A182 F11, A182 F22, A182 F12, A182 F5, A182 F91,etc
Water/oil/gas/air/steam/weak acid alkali/acid alkaline substances
internal thread/external thread/flange/welded/wafer
Annealing, pickling, polishing, bright, sand blast,hair line, brush, satin,
Ex-Work, FOB, CNF, CFR, CIF, etc
TT, L/C, Western Union
Singapore, USA, Morocco, Thailand,Australia,Viet Nam, Italy,Iran, India,
Stainless steel valves widely used in petroleum,chemical industry,electric power,
The size of the valves can be made according to clients requirements.
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