Threaded plug-in pressure maintaining valve SV08-20

Cartridge valves have been widely used in various construction machinery, material handling machinery and agricultural machinery. The application of cartridge valve is expanding in the often neglected industrial field. Especially in many places where the net weight and space are limited, the traditional industrial hydraulic solenoid valve is at its wit's end, while the cartridge valve shows its talents. Cartridge valve is the choice to enhance the main production force and market competitiveness.

The function of new cartridge valves is being continuously developed. This new development effect will ensure the sustainable economic benefits of manufacturing in the future. Past work experience has proved that the lack of imagination is the limitation of selecting cartridge valves to complete the immediate economic benefits of production and manufacturing.

The working pressures pA, pB and px of plug-in valve modules in working states A, B and X are AA, AB and Ax respectively, and the return spring force above the valve core is Ft. When pAX+FT > PAAA+PBAB, the valve port is closed; When pxAx+Ft≤pAAA+pBAB when the valve port is open.

In specific work, the supporting condition of the valve core is adjusted by the oil-passing method of the oil port X.

X goes back to the oil tank and the valve is opened;

X communicates with the oil inlet and the valve is closed.

The valve that changes the oil opening method is called the pilot valve.

Application of cartridge valve;

The three-way valve is composed of two directional valve parts connected in parallel, and it is open to the outside to produce a working pressure oil port, a working oil port and an oil return port. The working state number of the three-way cartridge valve lies in the working middle digit of the main hydraulic reversing valve.

The self-made relief valve of filter press is composed of two three-way valves connected in parallel.

The pilot valve can be a three-position four-way reversing valve.

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

The working state number of the four-way cartridge valve lies in the working middle digit of the main hydraulic reversing valve.