In this case the manifold serves to quick charge an accumulator in the brake circuit. If the accumulator is full the valve remains closed. If the accumulator is nearly discharged the valve opens and the full pump pressure acts over the LS-channel on the pump. The swivel angle of this is switched to maximum to quickly load the accumulator.
An integrated pressure relief valve is providing safety to the pump. An additional nozzle is generating the dampening function for the LS-channel.
Pump safety integrated in manifold
optimal dampening of the system by bypass-nozzle
optimal, need-depending charging of the accumulator
Pmax = 210 bar
Qmax = 15 l/min
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