The difference about the electric valve and solenoid valve

      The difference between the electric valve and solenoid valve:

     The solenoid valve is a solenoid coil electricity generated magnetic attraction overcomes the spring pressure drives the valve core action, an electromagnetic coil, simple structure, cheap price, onlyto realize switch;

      The electric valve is driven by a motor driven valve stem, valve core action, the electric control valve is divided (cut-off valve and valve).Shut off valve is the two type of work is fully open and fully closed,the regulating valve is installed electric valve positioner in above,adjusting to the valve dynamic through the closed-loop stability in a position.

      Comparative use of electric valve and solenoid valve:

     Solenoid valve: for liquid and gas pipeline off control, is a two bit DO control. Generally used for small pipe control.

     Electric valve: for analog liquid, gas and air system of media in the pipeline flow control, AI control. In the control of large valve and air system can also use electric valve two position switch control.

     Solenoid valve: can be used as switch, DO control, can only be used for small pipe control, and less common in DN50 pipeline.

     Electric valve: AI can have a feedback signal, by DO or AO control,found in relatively large pipe and valve and so.

      1.Switch:

     Driving through the solenoid valve coil, only on or off, switch the action time is short.

     Valve electric drive motor is generally used, on or off the action will take some time to complete simulation of the volume, and can do adjustments.

      2.The nature of the work:

     Solenoid valve flow coefficient is generally small, and the working pressure difference is small. For example, electromagnetic valve flow coefficient is generally 25 caliber than 15 caliber ball valve is much smaller. Solenoid valve driven by electromagnetic coil,voltage surge damaged more easily. Equivalent to the role switch, isthe role of on and off 2.

Engineering Chain

      Valve electric drive motor is generally used, to compare the impact of voltage. Solenoid valve is open and fast speed, usually used in small flow and small pressure to the switching frequency, local electric valve and vice versa. Electric valve opening can be controlled, the state has opened, closed, half open half closed, you can control the flow of media channels and the solenoid valve is not up to the requirements.

Solenoid valve can be reset general power, the electric valve need to add such features to reset device.

      3.Applicable process:

     Solenoid valve is suitable to process some special requirements,such as leakage of fluid medium, such as special, more expensive prices.

      Electric valves are generally used for regulation, but also switch,such as: fan coil end.

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