Hydrostatic:

The pressure (force over area) exerted by the fluid on the bottom of the reservoirs as a result of its gravitational force is identical in the two vessels. The hydrostatics pressure depends only on the height 1 of the liquid column and not on the shape of the vessel.

Hydraulic Pressure Intensifier:

The hydraulic press is force intensifiers, the inverse system being a pressure intensifiers. Two pistons of different surface are connected by a rod. If pressure Pe is exerted on piston area, forces acts upon the large piston. This force is transmitted to the small piston by the piston rod and acts on the smaller piston area. Thus pe2 is large than pe1. Neglecting friction losses, the following equation applies:

F₁ = F₂

Pe1 x A₁ = pe2 x A₂

Pe1/pe2 = A₂/A₁

In a pressure intensifiers, the pressures are inversely proportional to the areas.