Hypertherm HyPrecision Predictive P-15 Operator's Manual page 47

2 – Product description
Primary motor
1
2
1 Proportional control valve
2 Gear pump
3 Hydraulic manifold
Proportional control valve
Electronic proportional pressure control is a closed-loop monitoring system. It adjusts pressure when changes
are sensed, such as when the operator enters a water pressure target change on the operator interface pump or
at the CNC.
A hydraulic pressure sensor gives feedback to the controller to let the system increase decrease the pressure to
the cut setpoint or the pierce setpoint. The controller gradually increases pressure in the system. This reduces
mechanical stress on the intensifier.
Gear pump
Compressing hydraulic fluid generates heat that can cause damage to equipment and decrease the life of the
fluid. The gear pump is part of the cooling loop. It moves hydraulic fluid from the hydraulic fluid tank to the heat
exchanger. The hydraulic fluid passes through a hydraulic filter and then goes to the hydraulic fluid tank.
Hydraulic manifold and hydraulic pump
The hydraulic pump pressurizes fluid from the hydraulic fluid tank. The pressurized fluid goes through the
hydraulic manifold, which contains a shift valve that delivers hydraulic fluid to alternating sides of the intensifier.
Hydraulic fluid from the hydraulic center section in the intensifier goes to the hydraulic fluid tank through the
hydraulic manifold.
The hydraulic manifold also houses a hydraulic transducer, which monitors hydraulic pressure in the system. A
hydraulic relief valve sends hydraulic fluid back to the hydraulic fluid tank when the pressure is too high.
Primary motor
The primary motor drives the gear pump and the hydraulic pump.
HyPrecision Predictive waterjet pump Operator Manual 810120
3
4
5
4 Hydraulic pump
5 Primary motor
47