Vacuum Pressure Valve（Type 1）

The working principle of the vacuum pressure valve is that when the tank pressure exceeds the set pressure, the breathing valve will open the automatic exhaust or suction function, which can prevent the tank pressure from being too large. The breathing valve housing is provided with an outlet valve and an inlet valve device. When the oil storage tank is fed, the outlet valve is opened and the air in the tank is discharged to the outside. When the oil storage tank is discharged, the intake valve is opened and the outside air is sucked into the tank, thus maintaining the pressure balance in the oil storage tank. When the oil storage tank stops entering and leaving the oil, the air outlet valve and the air inlet valve are closed at the same time to isolate the oil storage tank and the outside world to prevent the leakage of gaseous oil products or the external fire source from entering the oil storage tank.

Model: ZQF-2

Material: Aluminum alloy

Caliber: DN50 (2 inches)

Working pressure: 0.2Mpa

Temperature range: -20~+70℃

Connection: flange internal thread

Standard: In line with national regulations +2000~3000pa -1500~2000pa