Working Principle of Hydraulic ValveHydraulic valves include a device for relative motion of the spool, body and driving spool in the valve body. In the hydraulic system, it is used to control the pressure, flow rate and direction of the fluid flow to ensure that the actuator works according to the requirements. Belong to control elementThe basic working principle of the hydraulic valve is that the relative motion of the spool in the valve body is used to control the opening and the size of the valve, so as to realize the control of pressure, flow and direction; and the flow through the valve mouth is related to the pressure difference before and after the valve mouth and the area of the valve mouth, which always satisfies the pressure-flow equation.Characteristics of Hydraulic Valves1. Sensitive movement, stable and reliable operation, as little impact, vibration and noise as possible.2. The resistance loss of oil flowing through the valve is smaller.3. Better sealing and less leakage.4. The structure should be simple and compact, small in size, versatile and long in service life.Function of hydraulic valvesHydraulic valves are used to control the flow direction of oil in the hydraulic system or to regulate its pressure and flow, so they can be divided into three categories: directional valves, pressure valves and flow valves. A valve with the same shape can have different functions because of different working mechanisms. Pressure valves and flow valves control the pressure and flow of the system by throttling the flow section, while directional valves control the flow direction of the oil by replacing the flow passage. That is to say, although there are various types of hydraulic valves, they still have some basic common points. BG-06-32 DSHG-06-2B2-T-D24-N1-52 DSHG-06-3C2-D24-N1-53 522-2T DSHG-04-2B2-T-D24-N1-52 DSHG-03-3C4-D24-N1-14 501-1T 538-1T BSG-03-3C3-D24-N1-48 608-1T