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https://www.industryvalves.com/ Flanged Check Valves
Flanged check valve, also known as one way valve, non return valve or reflux valve, is installed on one-way flow pipelines. It is mainly made up of valve body, disc, bonnet and gasket. It is used to prevent backflow and leakage of medium in the pipe, such as fluid, gas, etc. This flanged valve is also applied to stop reversal of pump and driving motor.
The flanged check valve allows medium to flow through in only one direction, and prevents reverse direction flow. Disc opens and closes automatically depending on force from media flowing. Disc will open under the pressure of forward flow fluid. When fluid flows in reverse direction, the disc will be closed by fluid pressure and dead weight so as to cut off the flow.
Flanged check valve (one way valve) can be widely applied in tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, and other pipeline systems.
1. Bead welding CO hard alloy sealing surface is of high wear, corrosion and friction resistance, which ensures long service life of sealing surface.
2. Hardening and tempering as well as surface nitriding makes the stem highly resistant to corrosion and friction.
3. Flanged check valves feature rational structure, reliable sealing, excellent performance and beautiful shape.
4. Double seal assures more reliable performance.
5. Listing position indication of stem is more intuitive.
6. Components material, flange and butt welding size are optional according to actual working conditions.
7. Our flanged valves have passed certification of API6D, DIN and CE.