Rental Hydraulic Power PackGENERAL This system is ideal for operating large valves, which require large volume of fluid and few cycles. Typical use is for BOP testing and other valve package testing. A Mob Demob fee of 8 000 NOK The system use Haskell pumps to charge a large accumulator bank. The bank then acts as energy storage. Download Schematic HYDRAULIC POWER UNIT The HPU is primary controlled by means of a hydraulic pilot pressure switch (1301). This switch stops the