Xi'an supply of electric butterfly valve - electric butterfly valve manufacturers in Xi'an - Xi'an electric butterfly valve manufacturers 
 A. Electric butterfly valve operating torque, is one of the smallest of all valve operating torque, the execution unit of the automated control system instrumentation, AC220V, AC380V or DC24V power supply voltage for power, acceptance (DCS, PLC) system or adjust the instrument, the operator inputs (4-20mA, 0-10mA or 1-5VDC) current signal or voltage signal to control operation. Rotation output torque of the rotary valve shaft 0 ~ 90o, will be able to complete the opening and closing movement or adjust the action. Fully electronic electric actuators, using mechatronic structure, inside the servo operation and opening signal position feedback, position indicator, manual operation, functional, reliable performance, the connection is simple, precise control, small size, weight light, small flow resistance, flow coefficient, simple structure, good sealing performance. Adjustment range, the input current signal or voltage signal, this shift into the displacement corresponding to the input signal, changing the angle of rotation of the valve plate (0-90o at any angle), the input signal corresponds to a certain corner, to achieve proportional action, therefore, better regulation and control flow and other parameters. 
 Two. Electric butterfly valve inside the servo operation and opening signal position feedback, position indicator, manual operation, functional, reliable performance, simple connection, power supply voltage AC220V or AC380V directly accept a unified standard signal (4 - 20mA the DC, 0-10mA DC or 1-5V DC, 0-10V DC), this change into the input signal corresponding to the displacement, the displacement angle (0 ~ 90o) movement, change the rotation of the ball core opening, so The input signal corresponding to a certain position opening to achieve proportional control action. (Two switch-to AC220V or AC380V supply voltage for power, motor reversing switch action, and at the same time the output of the switch valve position indication signal). Is a high precision, high-performance, high reliability products. 
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