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Check Valve summary

Check valve is also known as reverse flow valve, check valve, back pressure, one-way valve.These valves are automatically opened and closed by the force generated by the flow of the medium itself in the pipeline, which belongs to an automatic valve.Check valves are used in piping systems, and their main functions are to reverse the flow of submesh media, to prevent the pump and its drive electric reversal, and to release the medium in the container.Check valves can also be used to supply a line in which the pressure may rise above the main system pressure to the auxiliary system.

Check Valve standard

• BS 1868 ： Steel  check  valve

• API 594 ： Clip and double flanged check valves

• GB/T 12236 ： Steel swing check valve

• SHELL SPE 77/104 ： Press BS 1868 steel stop return valve

Check Valve Execution standard:

Check Valve Material and performance of main parts:Material and performance of main parts: