1. Definition of electric valve:
The electric valve is simply to control the valve with an electric actuator , so as to open and close the valve. It can be divided into two parts, the upper part is an electric actuator and the lower part is a valve.
Classification of electric valves:
One is an electric actuator with angular stroke: the electric actuator with an angular stroke is used in conjunction with the valve with an angular stroke to control the on-off of the pipeline by turning the valve 90 degrees; the other is a linear actuator with a linear actuator With the use of a straight-stroke valve, the upper and lower movements of the valve plate can be used to control the fluid flow of the pipeline. It is usually used on highly automated equipment.
Third, the principle of electric valve
Electric valve operation principle: Electric valves are usually connected by electric actuators and valves, and become electric valves after installation and commissioning. The electric valve uses electric energy as the power to connect the electric actuator to drive the valve to realize the opening and closing of the valve. In order to achieve the purpose of switching or adjusting the pipeline medium.
Fourth, the use of electric valves:
It is used for the analog adjustment of the medium flow of liquid, gas and wind systems. It is AI control. In the control of large valves and wind systems, electric valves can also be used for two-position switch control. There can be AI feedback signals, which can be controlled by DO or AO, as seen in large pipes and dampers.
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