CHECK VALVE

摘要

PROBLEM TO BE SOLVED: To provide a check valve capable of preventing back flow securely even if it is used for a long time. SOLUTION: Since a guide 1 and a shaft 7 are provided at both ends of the check valve to support the valve in the check valve provided in a flow passage through which fluid flows to prevent back flow, it is possible to reduce the inclination of the valve 4 and use it for a long time even if the guide 1 or the shaft 7 is worn.