The patented HPW pump utilises the reciprocal motion of a hydraulic piston. Hydraulic supply from the ROV moves the piston assembly until one of the water plungers reaches the end position; the incorporated reversal valve then changes direction of hydraulic flow, so the piston assembly is set in the opposite direction. The motion causes a vacuum to be developed at the pump intake line, and a positive pressure is developed in the output line. Pumping fluid for the water jetter is taken directly from the surrounding seawater. However, if required the appropriate compensators and extra valve assemblies can be supplied to allow the system to pump most types of alternative fluids, such as Transaqua, glycol and other well control fluids.

On/off control of the hydraulic supply to the Dynaset pump occurs via Sun hydraulics cartridges sized for the maximum flow rating of the pump.

• Hydraulic input max 210 bar, 120 lpm
• Output 0.5 – 460 bar, flow 50 lpm
• Manifold with pilot operated valve
• Turbo nozzle, and cavitation as option
• Multi-D handle standard; choice of T-bar or Fish tail handle
• Suction filter to protect pump
• Operational hoses supplied