Pressure transfer
The hydrostatic pressure p1 exerts a force F1 on the area A1 which is transferred via the piston rod onto the small piston. Thus, the force F1 acts on the area A2 and produces the hydrostatic pressure p2. Since piston area A2 is smaller than piston area A1, the pressure p2 is greater than the pressure p1. Here too, the following law applies:
In the case of the double-acting cylinder, excessively high pressures may be produced when the flow from the piston rod area is blocked:
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