Briefly describes how to correctly select coated pneumatic valve electric device

coating is the realization of program-controlled pneumatic valve pneumatic valve electric actuator, automatic control and remote control of the indispensable equipment, it can be made of stroke in the process of movement or the size of the axial thrust and torque control. Due to the work characteristics of pneumatic valve electric device and utilization depends on the types of pneumatic valves, work ethic and pneumatic valve in the pipeline or equipment, therefore, how to choose the right pneumatic valve electric device, is very important to prevent overload phenomenon.
operating thrust host structure of the pneumatic valve electric device has two kinds: one kind is not configured thrust plate, direct output torque; The other is a configuration thrust plate, the output torque by thrust plate pneumatic stem nut into output thrust. Output shaft rotate laps pneumatic valve electric device output shaft circle the number of how many and the nominal size of the pneumatic valve, pneumatic valve stem thread pitch, thread, according to M = H/ZS computing ( M for electric devices should satisfy the total number of rotating ring, H is height of pneumatic valve opens, S for pneumatic valve stem drive screw pitch, Z for pneumatic valve rod pneumatic valve stem diameter of thread for multi-turn type pneumatic valve stem, if electric device allows the largest pneumatic valve stem diameter can't through the pneumatic valve pneumatic valve stem, cannot assemble into electric pneumatic valve. As a result, the inner diameter of the hollow output shaft electric actuator pneumatic valve pneumatic valve lever must be greater than stem diameter. For part of rotary pneumatic valve and multi-turn non-rising stem of the pneumatic valve pneumatic valve, pneumatic valve stem diameter is not considered through the problem, but also should fully consider when selecting pneumatic valve stem diameter and the size of the keyway, after assembly to work properly.