Z2S10 superimposed hydraulic control check valve

Overview of Hydraulic Control Check Valve Hydraulic control check valve is a valve that can reverse flow through the check valve by controlling fluid pressure. This kind of valve occupies an important position in the hydraulic support equipment of coal mining machinery. The difference between the hydraulic control check valve and the ordinary one-way valve is that there is an additional control oil circuit. When the control oil channel is not connected to the pressure oil, the hydraulic control check valve works like an ordinary one-way valve, and the pressure oil only It flows from the oil inlet to the oil outlet and cannot flow in the opposite direction. When the oil control pressure in the control oil line is input, the piston ejector moves to the right under the action of the pressure oil, and the ejector pin is used to open the one-way valve to connect the inlet and outlet oil ports. If the oil outlet is larger than the oil inlet, the oil can flow in the opposite direction.
Overview of the superimposed hydraulic control check valve
The hydraulic control check valve can keep one or two working oil ports leak-free even if it is shut down for a long time. It has a long duration, good stability, and is suitable for vertical Stacked installation, rated pressure is.
In order to ensure that the two main check valves can be reliably closed when the shift valve is in the neutral position, the port of the valve on the oil circuit block should be connected to the oil return line