What is the working principle and function of a multi way valve?
Created on 07.17
The working principle of the multi way valve is that the inlet valve block is equipped with a three-way pressure compensation bypass overflow valve (logic element). When the multi way valve stops operating and all valves are in the neutral position, the valve will bypass the main oil flow with compensation pressure (6- · 12BAR). When a certain valve is working, the bypass port of the valve decreases under the action of load pressure, and the required flow is provided according to the load pressure. The load sensing shuttle valve transmits the load pressure of each working valve plate to the pressure compensation bypass overflow valve of the inlet valve block. Two way pressure compensation differential pressure reducing valve: When multiple working disc valves work simultaneously, the load pressure is transmitted to the spring side of the valve. At this point, the negative feedback effect of the valve core is used to automatically adjust the pressure difference between the two ends of the throttle valve, keeping it basically unchanged. Under its action, the flow rate of each valve remains constant and is not affected by load changes.