PHF Vacuum destructive (release)valve

Vacuum break valve installed in the container or pipe above the suction vacuum role play. It is installed above the top of a container or a pipe.

When the container or pipe pressure is lower than the design pressure of -0.01Kg~-0.1Kg, the pipeline under the action of vacuum, spring is installed in the valve flap above to start the work, vertical flap valve have to open, while outside air into the container, vacuum break. When the pressure reaches +0.5Kg, the valve is pressure up to the top, forming a seal.
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