Outline
The high performance butterfly valve adopts the design of double-eccentric structure. The shaft carries out double deviation from the structural center of the body and makes the disc leave the sealing seat instantly when it is opened in conjunction with the arc sealing face design of the disc. So as to reduce the friction of the sealing face. The disc has good sealing performance during closing. In addition to realizing effective compensation for the seat seal, the central self-positioning sealing seat structure design and the unique seat compensation sealing design reduce the friction during opening and closing, greatly reduce the operating force of the valve and effectively enhance the control precision of the butterfly valve.
The 70E Series butterfly valve is Featured by stable and reliable sealing performance, long service life, etc. It is suitable for control and shut-off applications of common corrosive gases and liquid media.
Actuator and auxiliary
control device
Pneumatic
Electric
Pneumatic-hydraulic
Worm gear
Application Parameters of control valves:
Air separation, chemical industry, petroleum Trim features: double-eccentric structure,
Chemical fiber, electric power, metallurgy Body type: straight-through type
Pharmacy, environmental protection Compensation type sealing seat,
Valve disc arc surface
Bonnet type: standard integral type
Flow characteristic: approximately equal percentage
Shut-off class: ASME B16.104 VI (standard seat)
Manufacturing range ASME B16.104 IV (metal seat)
Size range: DN"2"-48" Pipe connection type: wafer type, flange type
Pressure rating: 150-300LB Applicable temperature range: -45℃ -250℃
PN1.0-4.0Mpa Actuator type: pneumatic piston actuator
Connection type: wafer type, flange type electric actuator
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