This example model shows a sequence of two operations: first a clamping and then a punching operation. A sequence valve is used to make sure the punching operation is performed when a minimum pressure has been reached. A pressure-reducing valve is used to make sure the clamping pressure does not exceed a maximum pressure.

Fig. 1 shows how the punching cylinder starts to move when the clamping cylinder has reached a certain position. Fig. 2 shows how the cylinder pressures are affected by the sequence valve and the pressure-reducing valve.


Fig. 1 Cylinder positions


Fig. 2 Cylinder pressures. Notice how the clamping pressure is reduced by the pressure-reducing valve opening pressure. Also notice that the punching pressure is larger than the clamping pressure.

Reference

Industrial Hydraulics Manual, 5th ed., Maumee, OH: Eaton Hydraulics Training Services, 2008 p. 498.

medium	Value: Oil() Type: Medium Description: Medium in the component
openingPressure	Value: 5000000.0 Type: Pressure (Pa) Description: Pressure-reducing valve opening pressure