This experimental unit offers students to study hydrostatic pressure in liquids via typical experiments. As the weight of fluids exerts a pressure, when at rest, that is called as hydrostatic pressure or gravitational pressure. This pressure is applied on any area that is in communication with the fluid, exerting a force that is proportional to the size of the area.

This equipment allows the moment caused by a fluid thrust on a wholly or partially submerged plane surface to be measured directly. A PVC quadrant is mounted on a balance arm pivoted on knife edges which coincide with the quadrant center. When the quadrant immerses in water, there are hydrostatic forces. The balance arm has an adjustable counter balance and weights with a hanger. The quadrant is mounted on top of a clear acrylic tank which allows water to be admitted and drained to a required level by a valve.