Applications:
　　Pneumatic-high vacuum butterfly valve uses solenoid directional valve to change the direction of air passage, and controls the actuating cylinder to drive the butterfly valve opened and closed. It is used to put through or cut off the airflow in vacuum pipeline. Applicable medium can be pure air and noncorrosive gases. The may be fitted with signal feedback device and electropneumatic valve positioner.
Technical Data:
Fluid：gas、water、stream、acid liquid more
Leak rate：≤1.0×10^-6Pa·L/s；
Operating pressure：1.0×10^-6Pa～1.6×10⁶pa；
Working temp.：-50℃～+150℃；
Materials: SS304、SS316L
Sealing element:：VITON
PipeConnection ：flange
Electrical data:
Voltage: AC220V、DC24V
Service pressure:double action(4-7bar);Single action(5-7bar)
Electric locator: Input4-20mA signal,regulating action
Electrical connection: Connecting box type (popular type),
electric cable lead wire type (explosion-proof)
Protection class: German standard DIN43650A(IP65)
Other functions: E explosion-proof (explosion-proof rank Ex I/IIT4)
Figure Structure：