The 4/3 LS directional valve makes it possible to manage the speed of the receivers. This type of distribution makes it easier to drive machinery (excavators, cranes, etc.).
To improve ease of driving, it is useful to install LS directional valve with individual pressure balances which will allow the speed of the cylinders to be maintained when they operate simultaneously.
The LS dispenser can be completed with multiple options (shock valves, individual pressure balances, etc.). It can be configured to work with a fixed or variable displacement pump by modifying the inlet plate.
The pump must always saturate the LS distributors with flow. If the pump is undersized or if the pump has power regulation, it will be necessary to use Flow Sharing type distributors to maintain optimum driving comfort.
LS systems are sensitive to pollution, it is necessary to pay particular attention to filtration. Pressure filtration is strongly recommended.
Unlike the 6/3 distributor, the operator will not feel the effort of the machine except for the changes in noise caused by the rise in pressure in the circuit.