Hydraulic power packs typically offer a choice of valve connections, allowing users to connect them to a control valve or valves to power a variety of machines. The power pack supplies hydraulic power through a control valve to run another machine.
These units include; single-acting hydraulic power units, double-acting hydraulic power units, power units, and other complex special effects work.

In the motor voltage are DC hydraulic power units, and AC hydraulic power units. In the tank installation are vertical or horizontally mounted hydraulic power units.
The valves are controlled by manual operation hydraulic power units, and electric control hydraulic power units.