Pneumatic ball valve description < / div >

low pneumatic ball valve has a significant switch position indicator: pneumatic valve body, a sphere and handle an assembly unit, pneumatic valve to open the handle pointing in the direction of pipeline, the handle of the direction of vertical lines pneumatic valve closed; Even the worm gear head with on/off indicator. Low lock design: in order to prevent switch operating errors, adopts pneumatic valve stem flat head in the switch position setting locking hole, to ensure that the pneumatic valve in the correct position. Second-ranking blow-out proof type pneumatic valve stem. Pneumatic valve stem from the pneumatic valve body inversion or prevent structure, and the sealing ring seal, even if there is a fire, burning of the packing, pneumatic valve stem protuberant part can also be closely contact with the pneumatic valve sealing surface, can effectively prevent the leakage and pneumatic valve stem, reduce accident loss. Low antistatic design: using chromium nickel stainless steel spring and small ball sphere, pneumatic conduction between stem and pneumatic valve, non-metallic pneumatic valve seat and the friction produced when the sphere to electrostatic released in full. Low fire prevention structure: one thousand fire or burning of the abnormal heat up to soften PTFE, pneumatic seat bearing ring can fire prevention sealing surface and sphere contact, sealing effect and accord with API607 and API6FA specification requirements. Fire safety design, precision machining in pneumatic seat bearing surface inside a fire sealing lip, when fire burning of the pneumatic valve, fire prevention is formed between the sealing lip and the sphere of the metal to metal seal, pneumatic valve packing gasket adopts temperature resistance of graphite materials, ensure the pneumatic valve in no leakage when the fire broke out automatic pressure release: the stagnation of pneumatic valve lumen of medium when the abnormal pressure due to temperature increase, pneumatic seat outlet has the function of automatic relief, at the same time, according to need of pneumatic pneumatic valve can be installed on the valve body safety, guarantee the pneumatic valve has the function of automatic pressure relief, ensure the security of the pipeline. Low sealing of emergency care: due to the impurities or fire pneumatic valve seat seal fails unexpectedly, greasing pneumatic valve provides a connection to a quick note grease gun, convenient and quick to sealing grease injection to the pneumatic valve seat sealing parts, reduce leakage. Low two-way sealed fixed pneumatic ball valve: the company develop two-way sealing series pneumatic ball valve, USES the import and export bidirectional seal, seal is more reliable, whether single pressurized pneumatic valve, lumen closed pressure ( No matter what kind of testing method) All can achieve zero leakage. Work, doesn't make the ball to the pneumatic seat moving fluid pressure, pneumatic seat won't under too much pressure and deformation. Pneumatic valve stem section with self-lubricating bearings, reducing friction, switching torque is small, pneumatic valve seat adopts two spring preload. Sealing using ptfe inserted into the steel, steel ring at the back is equipped with spring, ensure pneumatic seat close to the sphere. When pneumatic valve lumen abnormal pressure higher than spring tension, pneumatic seat back out of the sphere, achieve automatic relief effect, pressure pneumatic seat after automatic reset. Structure is so sophisticated that fixed pneumatic ball valve sealing performance and stable operation of saving, service life is long, very suitable for long distance pipeline and pipeline. General pneumatic valve ball has full size and reducing two kinds of structure forms. Transport post even, easy slagging medium for the pneumatic ball valve should be used on the full size, convenience of paraffin purging through on a regular basis. Used for conveying gases or physical properties similar to water medium should be used on the pipeline of reducing pneumatic ball valve, because of its weight is about 30% lighter than the full bore pneumatic ball valve, is conducive to reducing load pipeline, reduce the cost. Pneumatic ball valve is a kind of Angle is 90 ° rotating type pneumatic valves, sealed performance is good, Full bore ball pneumatic valve) Discharge coefficient of flow resistance coefficient is small, simple structure, long service life, easy maintenance. Products are widely used in chemical, petroleum, textile, electricity, food, pharmaceutical, refrigeration, control system in papermaking industry.