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.

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