Cartridge valves have those applications

Hello, Leimingxin hydraulic for your answer: cartridge valves have been widely used in a variety of engineering machinery, material handling machinery and agricultural machinery. In the often-neglected industrial field, the cartridge valve application is expanding. Especially in many weight and space constraints in the occasion, the traditional industrial hydraulic valves can not do anything, and cartridge valves but show their hands. In some applications, cartridge valves are the only choice for increasing productivity and competitiveness

New cartridge valve features are being developed. These new developments will ensure sustainable production benefits in the future. Past experience has proven that a lack of imagination is the only limitation to realizing the fait accompli of production with cartridge valves.

Operating state of cartridge valve unit Remember that the pressure of the oil port A, B, x, respectively, pA, pB, px, the acting area of AA, AB, Ax, respectively, the spool of the upper reset spring force for Ft, when pxAx + Ft > pAAA + pBAB when the port is closed; when pxAx + Ft ≤ pAAA + pBAB when the port is open.

In practice, the force condition of the valve spool is controlled by the way the oil is passed through the oil port x.

X passes back to the oil tank, the valve port is open;

x is connected to the oil inlet, the valve port is closed.

The valves that change the way the oil passes through the port are called pilot valves.

Application of cartridge valves

Three-way valve consists of two directional valve assemblies connected in parallel to form a pressure port, a working port and a return port externally. The number of operating states of a three-way cartridge valve depends on the number of operating positions of the pilot operated directional valve.

The four-way valve consists of two three-way valves connected in parallel

The pilot valve can be a three-position four-way directional valve, see animation.

The pilot valve can also be two two-position four-way directional valves or four two-position three-way directional valves, see animation.

The number of operating states of a four-way cartridge valve depends on the number of operating positions of the pilot directional valves.