Two-position two-way hydraulic cartridge valve SV16-22 and Valve block

The composition of cartridge valve
Cartridge valve has cover plate, threaded type two categories. The cap plate cartridge valve is composed of a pilot part, a cartridge part and a channel block.
Control plate
The control cover plate can usually be divided into three categories: pressure, flow, direction control cover plate. As the pilot part of the cartridge valve, the control cover plate is used for fixing the pilot plug-in in the access block and sealing the channels leading to the cartridge valve; Some oil control channels are processed inside, and several damping plugs or plugs are set in some control oil channels to adjust the response time of the insert and control the direction of the oil circuit. It is equipped with some small hydraulic components to achieve some specific effects. In short, the function of the control cover plate is to communicate the pilot control oil circuit and control the working state of the main valve.
plug-in
The cartridge is usually composed of a spring, a spool, a valve sleeve and a seal, which constitutes the basic unit of the cartridge valve, the spool and the valve sleeve can form a seat valve, and the sealing performance is good when closed.
The bottom shape of the spool is varied to meet the different needs of pressure, flow, direction control, and multiple additional compound control functions such as damping, safety protection, and buffering.
The oil supply and oil control methods of cartridge valve control oil can be determined according to different situations in the hydraulic system, and there are different combinations of internal control and external control, internal discharge and external discharge. Most of the inserts used in the field are normally closed plug-ins. "Normally closed" means that the path between the main oil port A and B is closed by spring force when the control oil is not passed. "Normally on" means not on control
Oil depends on the spring force to maintain the connection between the main oil port A and B, when there is pressure control
Potential is given off.