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As the valve is versatile, so that it played a big role. For example: in the valve to control the functioning of the boiler and steam turbine in power plants; in the production of petroleum, chemical industry, plays a control valve is also the normal operation of all production equipment and processes. In the other sectors as well. However, valves and other products are often ignored. For example: when the equipment is installed, people often focused on machinery and equipment, but ignore the valve. The whole production efficiency will be reduced or discontinued, or causing all sorts of other accidents. Therefore, the valve selection, installation and use must be serious and responsible work.

Power drive valve is common of drive way of valve, usually said this drive device form of drive device for valve electric device, valve electric device of features following:

1) opening and closing quickly, can greatly shortened opening and closing valve by needed of time;

2) can greatly reduce operation personnel of intensity, special applies Yu high pressure, and big caliber valve;

3) suitable for installation in cannot manual operation or difficult to close of location, easily achieved far distance manipulation, and installation height to not by limit;

4) The automation of the benefit of the entire system;

5) power than gas and liquid source readily available, laying and maintenance of wire than the compressed air and hydraulic pipe is much simpler.

Disadvantage of valve electric device is complex in moist places use more difficult, when the media is used in explosive and explosion-proof measures are needed.