all weather breathing valve

The all-weather breathing valve refers to a breathing valve that can automatically operate around the clock without relying on any other energy. The working principle of the all-weather breathing valve is to control the exhaust and suction process of the storage tank through a spring limit valve plate. When the pressure inside the tank rises to a constant value, the pressure valve opens and the gas is discharged through the exhalation valve. When the pressure inside the tank drops to a certain vacuum degree, the vacuum valve opens and the external gas enters the tank through the suction valve, thereby maintaining the pressure balance inside and outside the tank. This design not only ensures the safety of the storage tank, but also reduces the volatilization loss of the medium. The all-weather breathing valves produced by Shanghai Meiyan Yi Pump Valve are generally installed on the top of fixed tanks to control the pressure of the storage tank by reducing oil evaporation loss and preventing damage to the storage tank caused by overpressure or vacuum inside the tank.