Electro-Proporational Control Valves

HAWE Hydraulik SE from Munich offers electro-proportional controls which provide a range of possibilities for adjusting the contact pressure of agricultural implements.

• Enables implements to be worked with a pre-defined weight or fully weightless
• Implement maintains requested distance to the soil far more precisely than it would with mechanical relief such as springs
• Saves fuel by pump supplying only the flow necessary to perform the control sequence
• Floating position can be used in a completely open version by having two cylinder ports connected to oil tank and external forces moving piston rod up and down
• Integrating actuated over-center valves makes it possible to realize also a proportionally dampened system
• Valve outlets are leak free when not actuated, avoiding a creeping lowering of the implements
• Actuation of lifting cylinder accomplished with connection block, type HMPL, which comes with system pressure relief valves and a pressure compensator for constant displacement pump systems 
• Integrated zero-leakage proportional directional seated valve executes lifting and lowering movements with minimum pressure losses, guaranteeing speedy lowering