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Multi link manual bidirectional control valve double acting hydraulic distributor
Applicable vehicle model: Aerial work platform with accompanying crane
Model: 2 tons -20 tons
Specification: Multi link
Transportation method: logistics
Type: Multi way valve
Customized processing: Yes
Layout form: integrated modular design
Installation form: Pipeline connection type
Tooth surface hardness: Hard tooth surface
Output speed range: 36.3（rpm）
Input speed: 3000 (rpm)
Allowable torque: 700（N.m）
multi-way valve
Multi way valve is a combination valve composed of two or more directional valves as the main body.
Through modular design, it can combine valve bodies according to different functional requirements, providing reliable system solutions. Multi way valves can be combined with various auxiliary valves such as safety valves, overload valves, oil replenishment valves, diversion valves, brake valves, and check valves to control the movement of multiple actuators.
Manual proportional multi way directional valve MHV-32 manual proportional valve, with a maximum flow rate of 800L/min and a maximum pressure of 430bar, and a maximum flow rate of 380l/min per piece. Suitable for industries such as construction machinery, mining, metallurgy, shipbuilding, and pharmaceuticals, it is a load sensitive proportional directional multi way valve with pressure compensation.
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.
Load sensing shuttle valve
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. Mechanical design, machining, design software, mechanical engineer, equipment management, welding, hydraulics, casting, sealing, measurement, engineering machinery, powder metallurgy, bearings, gears, pumps and valves, industrial automation
Safety overflow valve
Usually used for extreme protection of working mechanisms, such as variable amplitude oil cylinders
Electromagnetic overflow valve
Used for over limit protection of working mechanisms, such as torque limitation of cranes, three circle protection, etc.
Proportional reducing valve
Located on the opposite side of the working valve lever, it is a direct acting proportional pressure reducing valve that drives the slide valve to achieve proportional direction change. Note that the proportional direction change of the direct acting proportional pressure reducing valve is relatively poor compared to manual proportional direction change, and its micro motion performance is not good. If it is used for applications with high flow control accuracy, a proportional servo driven working valve should be used. REXROTH, BUCHER, DELTA POWER, SAUER-DANFOSS all have servo driven proportional multi way valves.
