Qigao YFA72W vacuum negative pressure safety valve

The vacuum negative pressure safety valve is suitable for negative pressure systems with a temperature of ℃. When the negative pressure in the container exceeds the allowable value, the valve automatically opens and sucks in air. When the negative pressure in the container reaches the allowable value, the valve automatically closes to protect the equipment and system. Installed in a normal non-negative pressure system, when the relief valve of the container and system is not opened and negative pressure is generated, this valve will automatically open. Main parts materials

Part name
Material
Material
Valve body
Valve seat
Adjustment ring
Valve cover
Stem
Spring

Coated with fluoroplastic

Main dimensions
Nominal diameter
Dimensions













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