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What is the working principle of the HXF breathing valve with a connecting pipe

date:2024-05-28 10:18
The HXF breathing valve with a connecting pipe is installed on the top of a fixed storage tank to reduce oil evaporation loss, control tank pressure, and prevent external flames from entering. It has the characteristics of high ventilation, low leakage, corrosion resistance, and has an electrostatic grounding wire to maintain an equal potential between the valve and the tank body. At present, in areas where static electricity is easily generated in the connecting breathing valve, technical improvements have been made and polytetrafluoroethylene gaskets have been added, so there is no need to connect static discharge devices.
 
What is the working principle of the HXF breathing valve with a connecting pipe
 
The HXF breathing valve with a connecting pipe is an important accessory for protecting the safety of oil tanks. It is installed on the top plate of the oil tank and consists of two parts: a pressure valve and a vacuum valve. Its function is to maintain the airtightness of oil tanks in general, and to some extent reduce the evaporation loss of oil products. When necessary, it can automatically regulate and balance the pressure inside and outside the oil tank, playing a safety role in the oil tank.
 
What is the working principle of the HXF breathing valve with a connecting pipe
 
When the pressure of oil and gas in the tank exceeds the allowable pressure of the oil tank, the oil vapor escapes through the pressure valve, and the vacuum valve is in a closed state; When the oil and gas pressure inside the tank is less than the allowable vacuum degree of the oil tank, fresh air enters the tank through the vacuum valve. At this time, the pressure valve is closed, and the allowable pressure (or vacuum pressure) is controlled by adjusting the weight of the disc.

Founded in 1968, LVF valve company of the United States is a recognized manufacturer of high-quality valves in the global valve industry.

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