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Closed centre circuit (Load sensing)

All hydraulic equipment connected to the circuit must be closed centre type  with Load Sensing signal output. In  this  system  the  pump  displacement  and  pressure  are  dependent  on  the  Load  Sensing signals coming from the different services.The pump feeds all hydraulic equipments until it reaches its max. displacement and the valve is being kept completely open, thus minimizing any pressure drops and without interfering with the circuit.
When the flow demand exceeds the feeding pump flow, the Load Sensing signals coming from priority services can pilot the master priority valve ® in order to reduce, bringing to zero, the
flow towards auxiliary circuits. If the LS signal comes from main priority services, the master priority valve reduces, bringing to zero, the flow for the second level priority.
PV - Closed centre circuit - schema 
SAFIM bianco su fondo azzurroBrakes on BLU No sfondo
Via D.Livingstone 6 - 41123 Modena - Italy
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