Product description Action purpose
Breathing valve is a safe and energy-saving product to maintain the air pressure balance of storage tank and reduce the volatilization of medium. Breathing valve makes full use of the pressure-bearing capacity of storage tank to reduce the discharge of medium. Its principle is to control the positive exhaust pressure and negative suction pressure of storage tank by using the weight of positive and negative pressure valve disc. When the pressure of the medium in the tank is within the control operating pressure range of the breathing valve, the breathing valve does not work to keep the oil tank airtight; When the medium is added to the tank, the pressure in the upper gas space in the tank rises and reaches the positive pressure of the breathing valve, the pressure valve is pushed open and the gas escapes from the breathing valve outlet, so that the pressure in the tank does not continue to increase; When the medium is pumped out of the tank, so that the pressure in the upper gas space in the tank drops and reaches the operating negative pressure of the breathing valve, the atmosphere outside the tank pushes the negative pressure valve disc which pushes the breathing valve open, so that the outside air enters the tank, so that the pressure inside the tank does not continue to drop, and the air pressure inside and outside the tank is balanced to protect the safety device of the storage tank.
Working principle
Breathing valve is a safe and energy-saving product to maintain the air pressure balance of storage tank and reduce the volatilization of medium. Breathing valve makes full use of the pressure-bearing capacity of storage tank to reduce the discharge of medium. Its principle is to control the positive exhaust pressure and negative suction pressure of storage tank by using the weight of positive and negative pressure valve disc.
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