Electric Hydraulic Directional Valve

The electric hydraulic directional valve is a hydraulic directional valve combined with a solenoidally operated pilot valve, which pushes the valve core with the pressure oil in the control oil circuit. Electric hydraulic directional valve is a combination of electromagnetic directional valve and hydraulic control directional valve, which is a control valve that uses electromagnetic directional valve to control the action of hydraulic control directional valve and change the direction of fluid flow.

Electric hydraulic directional valves and hydraulically controlled directional valves are mainly used in hydraulic systems whose flow exceeds the allowable range of normal working of electromagnetic directional valves to control the action of the actuator or the flow direction of the oil.

Notes:

1. The product can be installed arbitrarily, giving priority to the horizontal position.

2. The medium used in the hydraulic system must be filtered, and the filtration accuracy is at least 20μm.

3. Please select the fixing screw according to the parameters listed in the sample.

4. The surface connected to the valve requires Ra0.8 roughness and 0.01/100mm flatness

Working principle: When the two solenoid valve coils are energized, the balance hole circuit is closed, the drain hole circuit is opened, the piston upper cavity is depressurized, the piston is up, and the door is opened. Conversely, the piston goes down and the valve closes. In the process of valve opening and closing, the flow (flow rate) signal and the valve plug position signal can be transmitted to the computer, and the corresponding instructions can be issued after computer processing to control the on-off and power-off states of the two solenoid pilot valves, so that the hydraulic difference between the upper and lower cavities of the piston changes, so as to control the piston at the required opening height and realize the control of the pipeline medium flow.

The electric hydraulic directional valve of the hydraulic system is a composite valve composed of a solenoid spool valve and a hydraulic spool valve. The solenoid spool plays a leading role, it can change the direction of the control fluid flow, and thus change the position of the hydraulic spool spool. The hydraulic directional valve is the main valve, which can change the direction of the main oil circuit. Since the hydraulic thrust of the hydraulic spool can be very large, the size of the main spool can be made large, allowing a large flow of oil to pass through. In this way, a larger flow can be controlled with a smaller electromagnet. Therefore, the electric hydraulic directional valve combines the advantages of solenoid valve and hydraulic valve, and has the characteristics of convenient control and large flow.

Electric hydraulic directional valve can also be manufactured in Elephant Fluid Power, Elephant Fluid Power has a very professional technical team to ensure the excellent quality of each electric hydraulic directional valve, and the price of electric hydraulic directional valve produced by Elephant Fluid Power is also very favorable, fair for every customer to produce satisfactory electric hydraulic directional valve.

Hydraulic directional valve diagram

Hydraulic directional valve troubleshooting

Hydraulic directional valve symbols

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