Electric gate valve is a kind of widely used and important application in liquid, gas and wind system pipeline medium flow to imitate the adjust, control is AI. In large valve and wind system control can do two switch control with electric valve. Here we all the way to look at the principle of electric gate valve. Electric gate operating principle is electric gate valves are normally linked by electric implementing agencies and valves, become a motorized valve after installation and debugging. Electric gate valves using electricity as the power to turn on the electric implementing agencies drive valve, switch, adjust the action of valve. So as to achieve medium switch or adjust the purpose of the pipes. Electric gate valves work temper: electric valve as is usual with motor drive, comparing voltage impact resistance. Solenoid valve is closed fast and fast, as usual at small flow rate and pressure, require switching frequency bigger place of electric valve and vice. Electric valve can control the openings of the gate is open, closed, half-open half closed, can control the medium inside the pipeline flow and solenoid valve can not reach the requirements. The electric ball valve evolved by the cock. It has the same motion rotated 90 degrees, some different is the cock body is the electric ball valve ball, also has a circular hole or channel through its axis. Relevant percentages of the sphere and the access point should be like that, that is when the ball rotate 90 degrees, in the inlet and outlet should be completely present spherical shape, thereby blocking the flow. Electric plastic ball valve with the operation of the rotated 90 degrees and only a small rotational torque can be closed tightly. Exactly the same valve body cavity for medium flow resistance is small and straight. Generally ball valve is considered the most appropriate directly done using the open and close, but in recent years has been the development of ball valve designed to make them with throttling and control flow. Ball valve is the main characteristic of itself particularly compact structure, and easy to operation and maintenance, maintenance, and is applicable to water, solvent, acid and gas, such as ordinary working medium, but also is suitable for the working conditions of media, like oxygen, hydrogen peroxide, methane and ethylene, etc. Ball valve body can be a whole, also can be combined chemicals. Light and small ball valve switch, can make it big caliber, reliable sealing, extremely simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, its application in various industries are very broad. Electric plastic ball valve and plug valve belongs to a type of valve, only if the closure is a ball, the ball around the center line of the valve body used as a rotation to achieve a kind of open and close the valve. Ball Industrial Valves in the line is mainly used for cutting, distribution, and change the flow direction of medium. The electric plastic ball valve is widely used in these years a new type of valve, it has the following advantages: 1. Fluid resistance is small, the resistance coefficient and with the length of the section. 2. Simple structure, small volume and weight is very light. 3. Compact and reliable, the widespread use of plastic ball valve sealing surface of materials, sealing good, there is a lot of application in the vacuum system. 4. Operate conveniently, can open and close quickly, and from open to close as long as 90 ° rotation, facilitate long-distance long-distance control. 5. Convenient maintenance, simple structure of ball valve, sealing ring, which generally remove the replacement is convenient and quick.
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