Description and working principle of hydraulic control valve


Description and working principle of hydraulic control valve
Let me introduce to you the description and working principle of hydraulic control valve, mainly through three aspects, the types, description and principle of hydraulic control valve:
1. Types of hydraulic control valves: according to the purpose of use, functions and places, it can be evolved into remote control float valve, pressure reducing valve, slow closing check valve, flow control valve, pressure relief valve, hydraulic electric control valve, water pump control valve Wait. According to the structure, it can be divided into two types: diaphragm type and piston type.

2. HydraulicControl valveDescription: Hydraulic control valve is a valve controlled by water pressure, which consists of a main valve and its attached conduit, pilot valve, needle valve, ball valve and pressure gauge.

3. The working principle of the diaphragm type and the piston type of the hydraulic control valve is the same, both of which are driven by the upstream and downstream pressure difference ΔP, controlled by the pilot valve, so that the hydraulic differential operation of the diaphragm (piston) is completely automatic by hydraulic Adjust so that the main valve disc is fully open or fully closed or in an adjusted state.When the pressure water entering the control chamber above the diaphragm (piston) is discharged to the atmosphere or the downstream low pressure area, the pressure acting on the bottom of the valve disc and below the diaphragm is greater than the pressure above, so push the main valve disc to fully open position; when the pressure water enters the control chamber above the diaphragm (piston)Rotor pumpWhen it cannot be discharged to the atmosphere or the downstream low pressure area, the pressure value acting on the top of the diaphragm (piston) is greater than the pressure value below, so the main valve disc will be pressed to the fully closed position; when the diaphragm (piston) is above the control chamber When the pressure value of the main valve is in the middle of the inlet pressure and the outlet pressure, the main valve disc is in the adjustment state, and its adjustment position depends on the joint control effect of the needle valve and the adjustable pilot valve in the catheter system. The adjustable pilot valve can open or close its own small valve port through the downstream outlet pressure and with its change, thereby changing the pressure value of the control chamber above the diaphragm (piston).
The above three points are the entire contents of the description and working principle of the hydraulic control valve shared with you today. It will definitely be helpful to you. Hurry up and collect it~

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