Soft sealing double eccentric structure characteristics and principle of the pneumatic valve

Soft seal eccentric double pneumatic valve is modified on the basis of single eccentric pneumatic valve so as to form a double eccentric with currently the most widely used pneumatic valve. Its structure is characterized by pneumatic valve stem axis is deviating from the ontology center, also deviates from the board. The effect of the double eccentric can make plate quickly after pneumatic valves are open from pneumatic valve seat, greatly reducing the plate with pneumatic seat unnecessary phenomenon of excessive extrusion, scratches, reduce the open distance, reducing the wear resistance, increased the pneumatic seat life. Soft sealing double eccentric pneumatic valve is mainly suitable for water plants, power plants, steel smelting, chemical industry, water source engineering, environmental infrastructure projects such as system, especially in waterway on the pipeline, used as adjustment and the closure device. Working principle of the



double eccentric pneumatic valve in single eccentric pneumatic valve on the basis of further improvement. Its structure characteristics is in the center of the pneumatic valve stem axis deviation both board, also deviates from the center of ontology. The effect of the double eccentric plate can immediately after pneumatic valves are open from pneumatic valve seat, greatly eliminates seat plate and pneumatic unnecessary phenomenon of excessive extrusion, scratches, reduce the open distance, reduces the abrasion resistance, improve the pneumatic seat life. Scrape the slash, at the same time also makes the double eccentric pneumatic valve can also use a metal pneumatic valve seat, improve the application of the pneumatic valve in the field of high temperature. Structure characteristics



1 reasonable design, compact structure, easy installation and easy maintenance.

2 adopts eccentric structure, reduce the friction sealing ring, prolong the service life of pneumatic valve.

3 completely sealed, zero leakage. Can be used in ultra high vacuum conditions

4 replacement pneumatic valve plate sealing ring, plate, shaft and other material, can be used a variety of medium and different temperature