Threaded cartridge valve direction control valve SV08-31 hydraulic valve

Introduction to hydraulic threaded cartridge valves

            Hydraulic screw cartridge valve is also called screw cartridge valve, its installation method is to screw directly into the jack of the valve block, installation and disassembly is simple and quick, generally by the valve sleeve, valve core, valve body, seals, control parts (spring seat, spring, adjusting screw, magnetic body, electromagnetic coil, spring washer, etc.) composition. In general, the valve sleeve and the valve core and the threaded part of the valve body are screwed into the valve block, and the rest of the valve body is outside the valve block. Specifications are two, three, four and other threaded cartridge valves, diameter from 3mm to 32mm, high pressure up to 63MPa, large flow up to760L/min. Directional valves include check valve, hydraulic control check valve, shuttle valve, hydraulic reversing valve, manual reversing valve, solenoid slide valve, solenoid ball valve, etc. The pressure valve has relief valve, pressure reducing valve, sequence valve, balance valve, pressure difference relief valve, load sensitive valve, etc. The flow valve has throttle valve, speed regulating valve, shunt collecting valve, priority valve and so on.

       Application in hydraulic motor

     Threaded cartridge valves are also often used in hydraulic motors (especially closed motors). The structure and schematic diagram of a closed variable motor are shown in Figure 5, in which a total of 4 threaded cartridge valves are integrated. The screw insert relief valve is used to adjust the oil change pressure of the system; The threaded insert shuttle valve is used to introduce the pressure oil on the high pressure side into the P port of the electromagnetic direction control valve; Threaded insert electromagnetic direction control valve is used for motor displacement control, threaded insert three-position three-way shuttle valve, also known as threaded insert hot oil shuttle valve, connected to both ends of the closed circuit motor. The positive and negative transfer of the system ensures that the high pressure side has a certain amount of oil back to the tank to achieve closed loop cooling.

         Application in multiple valves    

       In addition to the directional valve, the integrated safety valve, check valve, overload valve, oil supplement valve, diverter valve, brake valve, load sensitive valve, etc. are threaded cartridge valves. The threaded cartridge relief valve is used to adjust the large output pressure of the valve; The function of the threaded cartridge type two-way load sensitive valve is to ensure that the output flow rate of port A or port B is a constant value when reversing the valve core to a certain opening, so that the operating speed of the mechanism is not affected by the load force, the threaded cartridge type shuttle valve is used to obtain a large load pressure and is introduced to the LS port of the variable pump, so that the output flow of the pump changes with the load pressure, and the threaded cartridge type oil supply sheet The directional valve is used to prevent the cylinder or motor from sucking out, and the threaded cartridge balancing valve is used to eliminate peak pressure and make the system run smoothly under negative load. The end plate is integrated with a threaded cartridge pressure reducing valve and a threaded cartridge relief valve. The function of the threaded cartridge relief valve is to reduce the pressure of high pressure oil as the pilot oil source of the proportional electromagnet to prevent high pressure damage to the proportional electromagnet. The threaded cartridge relief valve is used to adjust the pressure of the pilot oil source of the proportional electromagnet.