Brief introduction of hydraulic control check valve

The hydraulic control check valve is a valve that can reverse the flow of the check valve by controlling the fluid pressure. This kind of valve occupies a more important position in the hydraulic support equipment of coal mine machinery. The difference between the hydraulic control check valve and the ordinary check valve is that there is an additional control oil circuit. When the control oil circuit is not connected to the pressure oil, the hydraulic control check valve works just like the ordinary check valve, and the pressure oil only Flow from the oil inlet to the oil outlet, not reverse flow. When the control oil circuit has control pressure input, the piston push rod moves to the right under the action of the pressure oil, and the one-way valve is opened by the push rod to connect the oil inlet and outlet. If the oil outlet is larger than the oil inlet, the oil can flow in reverse.

Classification of hydraulic control check valve

The hydraulic control check valve is a kind of directional control valve. Specific classification:

Directional control valves are divided into two categories according to their functions in the hydraulic system: check valves and reversing valves.

Check valves include ordinary check valves and hydraulic control check valves in hydraulic transmission.