The use of pneumatic valve adjustment

butterfly pneumatic valve widely used, is suitable for flow control. Due to the adjustment of pneumatic valve in the pipeline pressure loss is big, is about brake times of pneumatic valve. So choosing butterfly pneumatic valve, pipeline system is affected by pressure loss should be considered, but should also consider closing butterfly plate pipeline under medium pressure robustness and can work under high temperature elastic pneumatic valve seat materials temperature limit. Adjusting the structure of the pneumatic valve length and the overall height is small, opening and closing speed, good flow control characteristics, its architecture is most suitable for production of large diameter pneumatic valve principle. When require butterfly pneumatic valve to control flow to use, the most important thing is that correct selection of the size and type of pneumatic valve adjustment, to make him more effective work. 。 Usually, in throttling and adjusting control and mud medium, demand structure length is short, the opening and closing speed. Low voltage cutoff, it is recommended to use pneumatic valve adjustment. 。 In two position adjustment, reducing channel, low noise, have spirit of hole and gasification phenomenon, a small amount of leakage into the atmosphere, the corrosive medium, can choose butterfly pneumatic valve. 。 Under special conditions throttling or seal strict, or wear serious, such as low temperature condition under the condition of using pneumatic valve adjustment, need to use special design of triple eccentric metal sealing with conditioning or double eccentric butterfly pneumatic valve. 。 Metal to metal surface seal triple eccentric butterfly pneumatic valve in addition to the large variable pressure adsorption gas separation devices as program control pneumatic valve use, also can be widely used in petroleum, petrochemical, chemical, metallurgy, electric power and other fields, pneumatic valve, pneumatic valve up to now, is the gate of good alternatives. 。 Center line butterfly pneumatic valve is suitable for the requirements to seal completely, gas leak to the other, the demand is higher, the working temperature in - service life - Degree of fresh water, sewage, sea water, salt water, steam, gas, food, pharmaceutical, oil and all kinds of acid and alkali, and other lines. 。 Metal to metal wire sealing double eccentric butterfly pneumatic valve is suitable for the city heat supply, gas supply, water supply and gas, oil, acid and alkali, such as line, as regulation and river closure device. 。 Soft eccentric butterfly pneumatic valves open and close and is suitable for ventilation and dust removal pipe two-way adjustment, widely used in metallurgy, light industry, electric power, petroleum chemical industry system of gas pipeline and channel, etc.