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The 4/3 LS directional valve is progressive or proportional. The control can be manual, electric or hydraulic.
It is used in mobile applications (public works, agriculture, ports, etc.). It makes it possible to manage the speed of the receivers and to facilitate the operation of the machines. Simultaneous movements are possible. Depending on the options chosen (individual pressure balances for example), handling the machines is greatly facilitated.
The LS directional valve can be connected to a fixed or variable displacement pump. "
Operation Load Sensing directional valve (PVG type) : hydraulic training
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