Ventilation butterfly characteristics and working principle of pneumatic valve

fluorine-butterfly butterfly pneumatic valve, pneumatic valve line with rubber butterfly, as a kind of used to realize on-off and flow control components, piping system has been used in petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely. In had known the pneumatic butterfly valve, the sealing structure is used in its seal form sealing materials for rubber, ptfe, etc. Because of the limitation of structural features is not adapt to the high temperature, high pressure and corrosion resistance, wear resistance, etc. A more advanced control existing pneumatic valve is triple eccentric metal hard seal butterfly valve, pneumatic valve components and pneumatic seat is connected, pneumatic valve seat sealing surface layer welding heat resistance, corrosion resistant alloy material. Multilayer soft fold type sealing ring on the pneumatic valve plate, the butterfly pneumatic valve compared with the traditional butterfly pneumatic valve with high temperature resistant, convenient operation, opening and closing without friction, closed as the actuator torque increases to compensate for sealing, improve the regulating pneumatic valve sealing performance and prolong the service life of the advantages. Ventilation control pneumatic valve used in chemical industry, building materials, ventilation, environmental protection engineering in power plant, glass and other industries of dust in the cold or hot gas pipeline, a gas medium to adjust flow or cut off the pipeline control unit. This kind of pneumatic valves shall generally be installed in the pipeline. , using line type disc plate and short structure is a new type of structure design and manufacture of the steel plate welding, compact structure, light weight, easy installation, small flow resistance, big circulation, avoid the influence of high temperature expansion, convenient operation, no the connecting rod, bolts, etc. , reliable operation, long service life. Can be installed in a transfer, not affected by the medium flow direction. Working principle: ventilation butterfly pneumatic valve actuator driven by a motor to drive, to rotate the disc plate within ° freedom in order to achieve the purpose of the open/close or adjusting medium flow.