When the tank is exposed to fire or other emergency conditions, the ordinary breather valve cannot meet the discharge capacity of the tank. In order to prevent the tank from bursting, the emergency relief valve is used. Model 8180 and 8188 emergency pressure vacuum relief valves are spring loaded and are suitable for tanks with high set pressure.

Specifications 16 ", 18", 20 ", 24"

Positive pressure setting 0.6 ~ 103.4kpa

Negative pressure setting -0.2 ~ -1.7kpa

Design and inspection standard api2000

Flange standards: ANSI B16.5, en1092, JIS, Hg / t20592 ~ 20615, GB / t9113, etc