Dual pump combined multi way valve for Crane
The multi way valve adopts a unified modular design, which can provide reliable system solutions for manufacturers of construction vehicles. Users need to combine the valve body according to functional requirements, which is simple and reliable. It can be a simple load sensitive manual multi way valve, or an electrically controlled proportional control valve with non saturation function that is independent of load and pump flow. Li, a senior consultant at Hydraulic Talent Network, believes that currently most hydraulic engineers in China focus on application design for multi way valves, and there is still room for improvement in the system design and research and development of the valve itself.
Usually, the working valve plates are configured in groups, and the inlet valve block is equipped with a three-way pressure compensation bypass relief 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.