What is the electric ball valve? The application of electric valve electric valve is what? Electric valve is pressure line of industrial automation and process control, with stable performance, easy installation, reliable, durable, etc. Small make up today to introduce the main products of electric valve, the hope can help users better application. The application of electric valve electric valve has simple structure, only by a few parts, material consumption province; Small volume, light weight, small size, installation size, drive torque, pressure regulator, simple, quick, only need to rotate 90 ° can quick start shut; Further also has good flow regulating and intercepting sealing characteristics of large diameter and low pressure, the applicable scope of the electric ball valve is the effectiveness of the dominant situation. When the electric valve is fully open position, the thickness of the plate only when the medium flows through the body's resistance, so the pressure drop through the valve is small, it has good flow characteristics of the grip. Electric valve shell sealing and two metal sealing type. Elastic sealing valve, seals can be installed in the main body or peripheral plate, to prompt. Metal sealing valve usually take over long life resilient seal valve, but difficult to achieve complete sealing. Metal sealing can adapt to high temperature, the elastic seal lacks some temperature limit. If the flow of electric valve requires the use of a hold, the choice of the completely the size and type of valve is very important. The structure and principles of electric valve is especially suitable for manufacturing of large diameter valves. Electric valve not only widely used in general industrial, oil, natural gas, chemical industry, water treatment, etc. , but also can be used in coal-fired power plant cooling water system. There are two kinds of commonly used electric ball Industrial Valves clip-on electric ball Industrial Valves and flange electric. With electric chip stud ball valve connection between two pipe flanges, electric ball valves are on the ends of the pipe flange valve adapter flange bolt flange of the valve. The strength of the valve performance refers to the pressure valves can be continuous medium. Continuous pressure valve is a mechanical products, so must have sufficient strength and rigidity, to ensure that won't cause rupture or deformation of use for a long time. Industrial automation process control function is the line pressure component, usually used for remote media channels and closed ( ON and OFF and the media) The control. Characteristics: the integration of structure, single AC220V 24 VDC power supply and DC power control operation; Small volume, light weight, reliable performance, simple match, traffic, etc. Electric ball valve it has rotated 90 degrees, the cock body is a sphere, a round hole or tunnel through its axis. Ball valve in the line is mainly used to cut off the electric ball valve, distribution, and change the flow direction of medium, it just has to rotate 90 degrees of operating and small rotational torque can be closed tightly. Ball valve is suitable to do the most switch, cut-off valve, ball valve but recent development have designed to make it with throttling and control flow, such as V type ball valve. Electric ball valve itself is the main characteristics of compact structure, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, easy operation and maintenance, and is applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene, widely used in various fields. Electric ball valve body can be as a whole, also can be combined. Is the realization of programmable electric ball valves, electric ball valve actuators indispensable driving control device, automatic control and remote control by travel, its movement process to control the torque, etc. Due to the working characteristic of electric valve actuators and utilization depends on the type and characteristics of ball valve, so, the correct selection of ball Industrial Valves actuator, is very important to prevent overload phenomenon. Actuator output torque is to select the main parameters of electric actuator, the actuator output torque should be selected 1 ball valve operating torque. 2 to 1. 5 times. Next, should according to the different conditions of use of ball valves, choosing the proper opening and closing speed, can help to prevent ball valve actuator opening and closing too fast to produce water hammer phenomenon. Is the realization of programmable electric ball valves, electric ball valve actuators indispensable driving control device, automatic control and remote control by travel, its movement process to control the torque, etc. Due to the working characteristic of electric valve actuators and utilization depends on the type and characteristics of ball valve, so, the correct selection of ball valve actuator, is very important to prevent overload phenomenon. Actuator output torque is to select the main parameters of electric actuator, the actuator output torque should be selected 1 ball valve operating torque. 2 to 1. 5 times. Next, should according to the different conditions of use of ball valves, choosing the proper opening and closing speed, can help to prevent ball valve actuator opening and closing too fast to produce water hammer phenomenon. Electric valve actuator has its special requirements that must be able to limit torque ( Axial force) And the rotation Angle. When the electric actuator specifications was determined, the control torque is determined. Generally run in a predetermined time, the motor will not overload. But as the following conditions may lead to overload: one is the low voltage power supply and can not get the required torque, the motor stop running; 2 it is wrong to set torque limit, make its torque is greater than the stop, cause continuously produce too large torque, the motor stop running; 3 it is intermittent use, the heat generated by the savings, more than the allowed temperature to rise of the motor; Four is a torque limit institutions circuit for some reason fails, the torque is too large; Five is the use of the environment temperature is too high, the relatively decreased motor heat capacity. 1, the environment temperature should be controlled in - 25℃- Within 70 ℃. 2, several circumstances should choose explosion-proof electric ball valves, electric current is not stable, environmental corrosion, flammable and explosive occasions, special medium, long time no maintenance and so on. 3, due to the electric mechanism is more complicated, when a failure is should not be removed, to prevent the accident. 4, shall not be under any circumstances for electric ball valve to knock or put together items.
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