An electric valve is a control element that uses electricity as a power source and opens, closes, or regulates a valve through a built-in motor or actuator. It is typically integrated into automation systems for remote control of the flow, pressure, or temperature of fluids (gas, liquid, steam, etc.).

The advantages are that they do not require a compressed air system, are easy to install, and are quiet, making them suitable for indoor or airless environments. The disadvantages are that they generally respond slower than pneumatic valves, are more dependent on a power source, and may cause system downtime in the event of a failure.

First, determine the media type, pressure, and temperature range. Then, select the valve body material (stainless steel, cast iron, etc.) and actuator model based on the required diameter, flow characteristics, torque requirements, and operating voltage (e.g., 24 VDC, 220 VAC).

Common voltages for electric valves on the market include 12 VDC, 24 VDC, 110 VAC, 220 VAC, and 380 VAC. Drive types are categorized as single-turn (ball valves, butterfly valves) and multi-turn (gate valves, globe valves). Reference the stroke and torque curves when selecting a model.

Before installation, ensure that the pipeline is free of impurities and properly supported. Ensure that the valve is in the manual open or closed position. When wiring, connect the power and control circuits strictly according to the wiring diagram, and adjust the limit switches or mechanical travel to the fully open or closed position.