Pneumatic butterfly valve operating torque small, is all in the class of valve operation torque to be the smallest, is the automation control system of the execution of the instrument unit, AC220V, AC380V DC24V power supply voltage or power, accepted from (DCS, PLC) system or adjusting instruments, the operation of the input (4 to 20 mA, 0-10 mA or 1-5 VDC) current signal or voltage signal, can control operation. To travel the rotation Angle of output torque valve spindle 0 ~ 90 °, can finish opening and closing action or adjust action. All electronic implementing agencies, the mechanical and electrical integration structure, with machines servo operation and opening signal position feedback, position indicator, manual operation, function, the function is strong, reliable in performance, simple, accurate and control attachment small volume, light weight, small flow resistance, flow coefficient, simple structure, sealed performance is good. Wide adjustment, through the input current signal or voltage signal, will this into a corresponding to the input signal and the displacement, change the valve plate rotation Angle (0-90 ° arbitrary Angle), so certain input signal corresponding certain corner, achieve proportional movements, therefore have better adjust control flow parameters.
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