Valve Type: Breather valve
Valve Nominal Size: DN50 through DN250; 2 inch through 10 inch
Pressure Rating: PN10
Pressure Regulating Range: Suction pressure -280 Pa; Expiratory pressure 800, 1200, 1600 Pa
Temperature Range: From -30°C to 60 °C
Pressure tolerance: ± 100 Pa
Seat Leakage: ANSI VI
Description & Features
Breathing valve is blast-proof and flame arresting type and always fixed at the top of tank ventilation devices to ensure that the tank pressure normal. It prevents the tank suffered damage from overpressure or vacuum, but also to reduce the loss of volatile liquid storage tank.
Usually the working medium is nitrogen which protect and isolate medium as gasoline, kerosene, diesel oil, aromatics, sulfur, air, oil or other chemical materials, .etc.
