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Back Pressure Check Valve 

AYVC Series 

Back pressure check valves are manufactured according to the one-way flow working principle. With the spring inside, it is in the closed position and LPG does not flow out of the tank. When the flow starts from the outside into the tank, the pressure overcomes the force of the spring, allowing the check valve to open and LPG Transfer is provided. The check valve closes when the flow stops or reverses. 

back pressure check valve
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