Stainless steel breathing valve is a type of mechanical breathing valve, but the material used is stainless steel, stainless steel material has 304, 316, etc.

Structure and principle of all weather stainless steel breathing valve

Stainless steel breathing valve is an important accessory to protect the safety of oil tank. It is installed on the roof of oil tank and consists of pressure valve and vacuum valve. Its function is to keep the oil tank airtight and reduce the evaporation loss of oil to a certain extent. When necessary, it can automatically ventilate and balance the pressure inside and outside the oil tank, which plays a safe role in the oil tank.

All weather stainless steel breathing valve when the oil and gas pressure in the tank is greater than the allowable pressure of the oil tank, the oil vapor escapes through the pressure valve, and the vacuum valve is closed; when the oil and gas pressure in the tank is less than the allowable vacuum degree of the oil tank, the fresh air enters the tank through the vacuum valve, and the pressure valve is closed, and the allowable pressure (or vacuum pressure) is controlled by the weight of the regulating plate.