What is a Check valve?

A check valve (English: Check Valve) is a valve that controls the flow of fluid in a pipe only in one direction and prevents the flow in the opposite direction. "Check valve", "check valve", "check valve" and "check valve" are used as synonyms for check valves. In English, there are synonyms for Check Valve such as Non-return Valve, One-way Valve, Reflux Valve, Pressure Retention Valve, and Back-Flow Prevention Valve. It is expressed as a "check valve" from its function to prevent backflow, and Check Valve seems to be derived from Check (block) + Valve (valve).

※Includes information on some trading companies