Principle of cartridge valve

Principle of cartridge valve; The control port controls the opening and closing of the oil port of the main oil circuit, and the opening and closing of the main valve core can control the opening and closing of the main oil circuit. Using different pilot valves can form pressure control, direction control or flow control, and can also form composite control. When the control oil port is connected with the oil tank, the cone valve opens the oil port to communicate, so the opening and closing of the cone valve can be realized by depressurizing or pressurizing the pilot control valve.

The combination of cone valve and small flow solenoid valve can form a reversing valve, and the combination of cone valve and various pilot pressure valves can form a reversing valve. Through the corresponding cooperation between solenoid valve and pilot pressure valve or speed regulation measures, various pressure control valves and cone valves can play the role of reversing valve pressure valve or throttle valve in the system.

Extended data

The basic components of cartridge valve are composed of valve core, valve sleeve, spring and sealing ring, which are divided into reversing valve component, pressure valve component and flow valve component according to different uses. The installation dimensions of three components with the same diameter are the same, but the structural form of the valve core and the diameter of the valve sleeve seat are different. The cartridge valve has small internal resistance and is suitable for large flow operation; Simple structure, reliable operation and high standardization.

Two-way cartridge valve is the basic component of cartridge valve. It is a multifunctional compound valve, which is inserted into a specially designed and processed valve body and equipped with a cover plate and a pilot valve. Because each cartridge valve has only two oil ports, it is called a two-way cartridge valve. Characterized in that the valve core is a conical valve with good sealing performance and sensitive action; Large flow and anti-pollution; One valve is multi-purpose, easy to form a variety of systems, compact structure.

Reference source; Baidu encyclopedia-cartridge valve and cartridge valve principle