Hydraulic Power Units (HPUs)

HomeManufacturingHydraulic Power Units (HPUs)
HomeManufacturingHydraulic Power Units (HPUs)
Hydraulic Power Units

With high working pressures up to 1379barg / 20,000psig, our Hydraulic Power Units (HPUs) are designed to provide low and high pressure filtered hydraulic fluid to topside and subsea control valves. In the event of a loss of power, stored volume is provided via accumulators to ensure safe and effective operation.

HPUs at a glance

System Specification

•  High working pressures up to 1379barg / 20,000psig
•  Bladder and/or piston accumulators (PED, ASME VIII Non or "U" stamped, AS 1210)
•  Integral PLC interfaced to platform MCS or autonomous
•  Integral autonomous MCC or interfaced to platform MCC
•  Integral or standalone reservoirs, size to suit application
•  HVAC systems available for low and high ambient temperature environments


•  316 stainless steel or carbon steel enclosed or open framed construction
•  Wide range of tube fitting types, e.g. twin ferrule compression, MP coned & threaded and Parker Hannifin MPI™
•  Wide range of materials and exotics available, e.g. 316/316L, 6Mo, Incoloy 625, Incoloy 825, 904L, Super Duplex, Duplex
•  Electric and/or pneumatic pumps suitable for use with mineral oil or water glycol based fluids
•  Environmental loadings can include: vessel motions, wind and blast loadings
•  Deck mounting or suspended (underslung) system designs


•  Safety Integrity Level up to SIL3
•  Safe area and hazardous environments (Zone 1/2, Class 1 Division 1/2), to ATEX, IECEx or NEC (NFPA 70)
•  Standard temperatures design in accordance with EN 13628-6, systems also available with Extended and Arctic ratings
•  Design and certification to DNV2.7-1 and DNV2.7-3
•  When required designed to the relevant NORSOK standards

All systems are designed according to your individual requirements or our standardised design philosophies - always incorporating safety, environmental and statutory requirements.

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