Emergency unloading valve

Emergency unloading valve can also be called safety valve. It is a direct acting self resetting valve. Its release mechanism adopts a spring loaded ball and ball seat structure. When the pressure exceeds the set value, it will automatically overflow, realizing automatic protection for personal safety and high-pressure system.

The top adjusting bolt can adjust the release pressure from 14MPa to 140MPa.

It can be installed on high pressure fluid control pipelines, reciprocating piston pumps, pressure vessels and other equipment requiring overpressure protection with a maximum working pressure of 105MPa or 140MPa.

When the pressure in the system exceeds the preset value, open the valve by relying on the pressure of the system itself; After the pressure is reduced, the valve can be automatically closed to ensure personal safety and equipment.

Basic parameters

Nominal diameter: 2 "~3"

Working pressure: 5000psi~20000psi

Temperature: – 75 ° F~+250 ° F (– 60 ° C~+121 ° C)

Body material: AA, BB, CC, DD, EE, FF, HH

Specification level: PSL1-3

Performance level: PR1