Working of Non Return Valve/Check Valve part-1

Описание: In this video we learn about working of Non Return Valve used in railway.
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid to flow through it in only one direction. 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.
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