Excavator John Deere solenoid valve AL177192 7343934 10316-245

      The screw cartridge proportional valve is a threaded electromagnetic proportional cartridge component fixed on the oil circuit assembly block. The screw cartridge valve has the characteristics of flexible application, pipe saving and low cost, and has been used more and more widely in construction machinery in recent years. Commonly used spiral cartridge type proportional valve has two, three, four and multi-pass forms, two-way proportional valve main proportional throttle valve, it often its components together to form a composite valve, the flow, pressure control: three-way proportional valve main proportional pressure reducing valve, mobile mechanical hydraulic system is used more proportional valve, it is the main hydraulic operation of the multi-way valve pilot oil circuit operation. The three-way proportional pressure reducing valve can replace the traditional manual pressure reducing pilot valve, which has more flexibility and higher control accuracy than the manual pilot valve. It can be made into a proportional servo control manual multi-way valve as shown in Figure 1. With different input signals, the pressure reducing valve makes the output piston have different pressure or flow rate to achieve proportional control of the displacement of the multi-way valve spool. Four-way or multi-way screw cartridge proportional valves can be individually controlled for the working device.