Products Details

Hydraulic electric control valve, also known as electro-hydraulic control valve, is a device that uses electrical signals to control the direction, flow and pressure of oil flow in a hydraulic system. These valves are widely used in industrial automation, mechanical engineering and process control to achieve precise control and automated operation.
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Electro-hydraulic control valves usually consist of the following parts:
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Drive Motor: Provides power to drive the mechanical components inside the valve.
Hydraulic System: Controls the direction and pressure of the oil flow.
Electronic Control System: Receives the electrical signal and converts it into the corresponding action in the hydraulic system.
Operating System and Indicator: Provides a user interface and status display.
The electro-hydraulic control valve can be customized according to the special requirements of the customer, such as the choice of output torque, the control mode of the panel button, the acceptance of the analog signal, and the explosion-proof and protection level. They are also available in a variety of mounting options, such as vertical or horizontal mounting, as well as valve options with different strokes, such as the EHC-ZT linear stroke.
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The working principle of electro-hydraulic control valve involves a solenoid valve, which is an on/off electric operation valve composed of a solenoid actuator (solenoid) and a valve body. The solenoid valve controls the opening and closing of the valve through electromagnetic force, and has no intermediate position, so it cannot be used for throttling. Proportional solenoid valves are a special type of solenoid valves that provide continuous flow or pressure changes based on electrical input and are suitable for applications that require automatic flow control, such as proportional pneumatic actuators, throttle valves, burner control, etc.
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Another important aspect of electro-hydraulic control valves is their circuit function, they can open, close, distribute or mix fluids. The ISO 1219 standard provides standardized symbols for solenoid valve circuit functions, including the number of valve positions, flow direction, pressurized flow, exhaust, and closed ports.
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Overall, the electro-hydraulic control valve is a highly flexible and powerful industrial component that can meet a variety of complex control needs.