Customer:           radian@radian-valve.com

The selection points of electric actuator  
ruidu

Radian-valve

electric control valve VB-3000 and VB-7000
1, according to the type of electric actuators selection
The type of valve is quite large, and the working principle is not the same, generally to turn the valve plate angle, lift valve plate, etc. to achieve opening and closing control, when supporting with the electric actuator should first be based on the type of valve selection of electric actuators.
(1). Angle travel electric actuator (angle <360 degrees)
Electric actuator output shaft rotation is less than one week, that is less than 360 degrees, usually 90 degrees to achieve the valve opening and closing process control. Such electric actuators according to the different ways to install the interface is divided into direct-type, the base of two kinds of crank.
A) Direct connection: refers to the electric actuator output shaft and stem directly connected to the form.
B) Base crank: refers to the output shaft through the crank and stem connection form.
Such electric actuators for butterfly valves, ball valves, plug valves and so on.
(2). Multi-turn electric actuator (angle> 360 degrees)
Electric actuator output shaft rotation is greater than one week, that is greater than 360 degrees, generally need to multi-turn to achieve the valve opening and closing process control.
Such electric actuators are suitable for gate valves, shut-off valves and the like.
(3) Straight travel (linear motion)
Electric actuator output shaft movement is linear motion, not the form of rotation.
Such electric actuators for single-seat control valve, two-seat control valve.