The hydraulic safety valve is installed on the top of the oil tank and used in parallel with the breather valve. It is the standby equipment of the breather valve. When the breather valve fails or overpressure is caused by other reasons, the common breather valve cannot meet the discharge capacity of the storage tank. In order to prevent the tank from bursting, it is used for emergency discharge.

Specification 3 "~ 10" (DN80 ~ 250)

Positive pressure setting 550pa ~ 1960pa

Negative pressure setting - 490pa

Design and Inspection Standard SY / T 0511.2

Flange standard ANSI B16.5, en1092, JIS, Hg / t20592 ~ 20615, GB / t9113 and other standards can be selected according to user requirements