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Breathing Valve Features And Performance
Nov 23, 2017

The valve body of the breather valve can withstand 0.2Mpa water pressure without seepage and deformation. When the air relative humidity is greater than 70% and the minimum temperature is -30 degrees centigrade, the valve opening pressure of the valve meets the working pressure requirements after 24 hours of freezing, and the pressure difference is positive and negative 20pa.

When the valve plate of GTQ type breather pipe moves, the sensitivity is high, and after the action is finished, the sealing is ensured. There is enough space in the breather valve to ensure the ventilation capacity of the tank. Breathing valve did not reach previous working pressure: nominal diameter less than or equal to 150mm, the amount of leakage is less than or equal to 0.04m3/h; the nominal diameter is larger than 220mm, the amount of leakage is less than or equal to 0.4m3/h; when the breathing valve to the working pressure: valve plate immediately open, to ensure the normal tank ventilation requirements.

Main specifications / characteristics and performance:

The new type of pipe fire arrestor material is made of cast iron, cast steel, stainless steel, aluminum alloy, and has good corrosion resistance. Valve plate, valve seal ring made of stainless steel PTFE material. Low temperature resistance and good frost resistance. The valve is installed on the fixed roof tank ventilation device to reduce the evaporation loss of oil, control tank pressure effect. The valve has the advantages of large ventilation capacity, small leakage, corrosion resistance and good anti freezing performance. It can automatically adjust the internal and external pressure of the oil tank.

The gas flame arrester is simple in structure, light in weight, easy to overhaul and easy to install. Water pressure test qualified. Low temperature resistant anti freezing operation in 2 hours: qualified general -42 C, pressure valve disc, vacuum valve disc and seal ring were no deformation phenomenon. Fully meet the standard requirements. Continuous operation for 72 hours at normal temperature of 36 degrees, action 10000 times, pressure valve plate, vacuum valve disc and guide rod contact surface without any signs of wear and bruising, guide rod lifting sensitive, no stuck phenomenon.