Stainless Steel Thread ends Swing Type Check Valve

swing check valve

vertical check valve

 Y Type check valve

Three piece check valvel

1.Full open disc

2.Stainless steel

3.Screwed cap

4.Non return disc

5.Threaded or socket weld ends

Check valve allows flow in one direction and automatically prevents back flow (reverse flow) when fluid in the line reverses direction. They are one of the few self-automated valves that do not require assistance to open and close. While some can be fitted with externally weighted and dampened devices for special circumstances, the majority do not have any outside assistance, such as that found with on/off or other valves. Unlike other valves, they continue to work even if the plant facility loses air, electricity, or the human being that might manually cycle them.