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Gate Valve

Electric flange gate valve

Label: Electric flange gate valve: Electric flange gate valve manufacturer added time: May 25, 2021 click 71 second

 Electric flange gate valve

Structure introduction

What is the electric valve, the electric valve is simply to use the electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided into two parts, the upper part is the electric actuator, the lower part is the valve.
There are two kinds of electric valve, one is angle stroke electric valve: the angle stroke electric actuator is used with the angle stroke valve to realize the 90 degree internal rotation of the valve to control the pipeline fluid on-off; The other is the straight stroke electric valve: the straight stroke electric actuator cooperates with the straight stroke valve to realize the valve plate up and down to control the pipeline fluid on-off. It is usually used in the equipment with higher automation degree, and the horizontal installation and adjustment accuracy of the valve is the best.

principle

Operation principle of electric valve electric valve is usually connected by electric actuator and valve, and becomes electric valve after installation and debugging. The electric valve uses electric energy as the power to connect the electric actuator to drive the valve, so as to realize the valve opening and regulating action. So as to achieve the purpose of switching or regulating the pipeline medium.
Solenoid valve is a kind of electric valve; The magnetic field generated by the electromagnetic coil is used to pull the valve core, so as to change the on-off of the valve body. When the coil is cut off, the valve core will return by the pressure of the spring.

purpose

Purpose of electric valve: electric valve: it is used for analog quantity regulation of medium flow in liquid, gas and air system pipeline, which is AI control. In the control of large valve and air system, electric valve can also be used as two position switch control.
Electric valve: can have AI feedback signal, can be controlled by do or AO, compared with large pipe and air valve, etc.
1. Switch type:
The drive of electric valve is generally motor. It takes a certain amount of time to complete the opening or closing action, which can be adjusted.
2. Nature of work:
Electric valve drive is generally motor, more resistant to voltage shock. Solenoid valve is fast open and fast close, generally used in small flow and small pressure, requiring high switching frequency of the electric valve on the contrary. Electric gate valve The opening can be controlled, and the state can be on, off, half open and half closed, which can control the medium flow in the pipeline, but the solenoid valve can not meet this requirement. Pneumatic gate valve: valve driven by compressed air.
Gate valve is one of the most common open and close valves. It uses the gate (i.e. the opening and closing part in the gate is called the gate or gate, and the gate seat is called the gate seat) to connect (fully open) or cut off (fully close) the medium in the pipeline. It is not allowed to be used for closure, and the micro opening of the gate should be avoided in use, because the erosion of high-speed flowing medium will accelerate the damage of sealing surface. The gate in the vertical to the gate seat channel center line of the one-sided lifting movement, like the gate to cut off the medium in the pipeline, so called Gate valve
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