Electric hard sealing butterfly gold, chemical industry, building materials, power stations, glass industries of the ventilation, environmental protection engineering cold or hot blast dongshen gas pipeline, as gas medium flow adjustment or cutting device.

Product features：

1, USES the midline type disc plate and steel welding new short structure design and fabrication of structure forms, compact structure, light weight, convenient in installation, flow resistance small, big circulation, avoid the influence of high inflation, convenient operation.

2, inside without connecting rod, bolts, reliable operation, long service life. Can by multistage install, not the flow direction of medium influence.

Application:

Electric hard sealing butterfly valve is a non airtight model butterfly valve, widely used in building material, metallurgy, mining, power and other production process more than 300 ℃ temperature medium nominal pressure on the pipeline for 0.1 Mpa, used to connect or adjusting for opening and closing dielectric quality.

Second, structure features:

This butterfly valve is adopted with short line type disc plate steel welding structure design and manufacture new structure forms, compact structure, light weight, convenient in installation, flow resistance small, big circulation, avoid the influence of high inflation, convenient operation. Body without connecting rod, bolts, reliable operation, long service life. Can by multistage install, not the flow direction of medium influence.

Three, working principle:

Driven by motor driving this butterfly valve actuator, make the dish plate in 90 ° scope free rotation to achieve on-off or regulatory medium flow purpose.

At present, fluorine-butterfly butterfly valve, lining rubber butterfly valve, as a kind of used to attain a pipeline system hige and flow control components, already in petroleum, chemical, metallurgy, water and electricity in many areas get very widely. In the butterfly valve technology already male know, its sealing form used more sealing structure, sealing materials for rubber, ptfe etc. Due to restrictions of structure characteristics, does not adapt the high temperature resistant, high pressure and corrosion resistance, abrasion resistance, etc. Existing a more advanced butterfly valve is triple eccentric metal hard seal butterfly valve, the valve body and seat for conjoined twins components, heat-resistant, seating surface layer surfacing corrosion resistant alloy material. Multi-layer soft fold type sealing ring fixed in the valve plate, this butterfly valve and traditional butterfly valve, compared with high temperature resistant no friction, open the operation of the light, closing with transmission’s torque increases to compensate for sealing, improve the butterfly valve sealing performance advantages and prolong the service.