Knowledge

Variation test of forward and reverse strokes: the same as the nonlinear deviation test method, in the relationship between the actual forward and reverse pressure-stroke,

Pneumatic valves are now more and more widely used in various industries, the technology of pneumatic actuators is getting better and better

Check valve is also known as reverse flow valve, check valve, back pressure valve, one-way valve. This type of valve is automatically opened and closed by the force generated by the flow of the medium

The flow characteristics of the regulating valve mainly include four kinds of flow characteristics: linear, equal percentage, quick opening and parabolic.

During the operation of the regulating valve, sometimes due to the principle of the medium, the regulating valve will be stuck or blocked and cannot work normally.

During the operation of the valve seat control valve, due to the infiltration of the medium, the inner surface of the thread used for fixing the valve seat is easily corroded and the valve seat is loo

In some occasions, if a pressure regulating valve (including a vent valve) is selected, the actual possible pressure difference should be properly expanded, that is, the actuator is required to provid

As for the electric regulating valve with large diameter and high torque, there are multiple inversion electric actuators, and the control is not a problem.

Before installing the electric regulating valve, the pipeline should be cleaned to remove dirt and welding slag.

Electric regulating valve is an important performance unit surface in industrial automation process control.

There is not much difference between pneumatic control valve and electric control valve, but the actuator is different.

Uses and features of pneumatic control valve: It is a right-angle reversal layout, used in conjunction with a valve positioner to achieve share adjustment