Breathing pneumatic valve working principle and maintenance

breathing pneumatic valve pneumatic valve body can withstand. Mpa water pressure, no penetration and deformation phenomenon. Breathing pneumatic valve of low temperature resistance in the air relative humidity is more than %, - is the minimum temperature ℃, after hours of frozen, the pneumatic valve opening pressure conform to the requirements of the job stress, ( Allow the differential plus or minus pa) 。

GTQ type vent pneumatic valve plate parts gesture, high sensitivity, after the completion of the action, ensure the seal. Breathing with sufficient space in pneumatic valve pneumatic valve, to ensure that the tank ventilation. Breathing before I go to work pressure pneumatic valve: nominal diameter in mm or less, the leakage or less. m/h； Nominal diameter mm or higher, the leakage or less. m/h； When breathing pneumatic valve has reached the work pressure, pneumatic valve plate immediately open, ensure the normal order of the tank ventilation requirements. Characteristics and performance



the new pipe flame arrester material used: cast iron, cast steel, stainless steel, aluminum alloy, good corrosion resistance. Pneumatic valve, pneumatic valve sealing ring is made of stainless steel material of tetrafluoroethylene. Low temperature resistant, antifreeze performance is good. The pneumatic valve is installed on the fixed roof tank ventilation, to reduce oil product evaporation loss, control the tank pressure. This pneumatic valve has the ventilation rate, small amount of leakage and corrosion resistant, antifreeze performance is good. It can be carried out on the oil storage tank inside and outside pressure automatic adjustment, etc.

the fuel gas flame arrester has simple structure, light weight, easy maintenance, easy installation. Water pressure test. Low temperature resistant antifreeze connectivity: qualified in - ℃ operating hours, pressure pneumatic valve disc, vacuum pneumatic valve plate and seal ring are no deformation phenomenon. Completely accord with a standard to ask. At normal temperature ℃ continuous operation hours, action time, pressure pneumatic valve disc, vacuum pneumatic valve plate and guide bar interface without any signs of wear and bruised, guide rod no stuck phenomenon.

maintenance and repair

in order to ensure that new all-weather breathing fully use the performance of the pneumatic valve to achieve. Breathing air valve in the six months for inspection and maintenance.

, check pressure pneumatic valve plate and vacuum pneumatic valve plate movement is flexible, pneumatic valve guide ring contact presence of lesions.

and reinstall pressure pneumatic valve tray, promise to close contact, flexible guide rod.

and enable new breathing pneumatic valve, pneumatic valve must be purged of shock.

operating pressure: grade A positive pressure: Pa ( Millimeter water column) Negative pressure: Pa ( Millimeter water column)

B positive pressure: Pa ( Millimeter water column) Negative pressure: Pa ( Millimeter water column)

C level positive pressure: Pa ( Millimeter water column) Negative pressure: Pa ( Millimeter water column)

* GFQ all-weather breathing pneumatic valve

* GZW - I drag deflagration pipe flame arrester

* QZF - Type aluminum alloy all-weather fire breathing pneumatic valve

* QHXF - Explosion-proof breathing pneumatic valve