Usage
1、Hydraulic safety valve is the safety back-up equipment of (flap type) breathing valve, its inhalation and exhalation action pressure is slightly higher than (flap type) breathing valve, once the breathing valve fails to work or its flap freezes in winter, the liquid seal of the hydraulic safety valve will be destroyed, thus protecting the tanks from damage.
2、Hydraulic safety valve is installed on the top of the tank and used in conjunction with the breather valve.
3、Control pressure: +50 mm water column.
