Products Details

Electric gate valve is a kind of equipment that uses electric actuator to control valve switch, which is widely used in the field of industrial automation, especially in petroleum, chemical, metallurgy, electric power and other industries. Its working principle is to receive signals from the control system, the electric actuator converts electrical energy into mechanical energy, drives the valve stem to drive the valve plate to do lifting or opening and closing movement, and realizes the valve to control the switch of the pipeline medium.

Electric gate valve has the advantages of simple structure, fast opening and closing, good sealing performance and so on. They are usually designed to be fully open or fully closed and are suitable for use where a complete cut-off or connection of the medium flow is required. When the electric gate valve is fully opened, the valve plate is fully lifted, allowing fluid to pass through the valve with little resistance; When closed, the valve plate lowers and forms a tight seal that prevents fluid from passing through.

The actuator of electric gate valve can be divided into two kinds: angular stroke and straight stroke. The angular stroke electric actuator is suitable for the occasion where the valve is rotated within 90 degrees to control the flow of the pipeline, while the straight stroke electric actuator is suitable for the occasion where the valve plate is moved up and down to control the flow of the pipeline.

The spool design of electric gate valve has important influence on its sealing performance and fluid control. The spool is usually flat or inclined, and the valve is opened and closed by moving up and down. The design of the spool needs to consider its structure and material to adapt to different working conditions.

The sealing principle of electric gate valves usually includes metal seals or soft seals, which are suitable for different working conditions. The metal seal is suitable for high temperature, high pressure and corrosive medium conditions, while the soft seal is suitable for low temperature, low pressure and easy crystallization medium conditions.

When selecting an electric gate valve, it is necessary to consider the valve's operating torque, thrust, the number of turns of the output shaft, the diameter of the valve stem, the output speed, and the installation and connection mode to ensure that the valve can meet the needs of the specific application.

In general, electric gate valves play an important role in many industrial fields because of their easy operation, rapid response and accurate control characteristics. However, they are not suitable for all application scenarios, such as systems requiring frequent operation or high flow rates to avoid valve plates becoming stuck or damaged due to deposits or wear.