HYDRAULIC POWER UNITS

Reliable power for marine, onshore and offshore applications

HYDRAULIC POWER UNITS (HPU)

Custom-built to meet your needs

We specialise in custom marine and offshore Hydraulic Power Unit (HPU) builds, designing and manufacturing to customers’ exact specifications. Flow, pressure and power ranges can all be tailored to customer requirements as well as meeting the following compliance options:

Rig Safe
Safe Area
Zone 1
ATEX Zone 2
CE-marked

Our hydraulic power units can be packaged as portable, open, enclosed or sound treated (acoustic) and can be designed/manufactured to work in ambient temperatures ranging from -40°C to +50°C. HPUs can be diesel engine or electric motor driven.

Due to weight restrictions with some applications there can be a need to replace the single skid where all the components are housed within one frame to a split skid type where the prime mover is on one skid and the hydraulic components on another.

We only use the highest quality, reputable hydraulic components such as Parker, Linde and Bosch Rexroth, and as build completes, all units are extensively tested.

Diesel hydraulic power units manufactured by Prior Power Solutions can include safety features including: exhaust gas cooling kit, fire suppression system, and fire and gas detection system.

SAFETY

Integrating safety systems is our number one priority

RELIABILITY

Our Hydraulic Power Units are designed to run well and last

FILTRATION

Is at the forefront of design to ensure reliability

THE FUTURE OF HYDRAULCS

How are hydraulics evolving?

Electrical integration is becoming the norm, allowing for greater levels of control and monitoring.

Engines are developing all the time to be more fuel efficient with cleaner technology, however in higher level ATEX environments, these engines cannot be used, which is where electric motor drives come in. Variable frequency drive technology is rapidly advancing to better match the speed and torque capabilities of a diesel engine.

What’s the biggest cause of failure in hydraulics?

The biggest cause of failure in hydraulics is poor fluid cleanliness. There are multiple points at which hydraulic fluids can become contaminated. Therefore, putting filtration at the forefront of system design as we do, alongside maintaining fluid operating temperatures to reduce degradation (which can accelerate damage to component internals) ensures reliable equipment.

What is an alternative to hydraulic oil?

More environmentally friendly fluids, ‘bio-oils’ or water-based hydraulic fluids are becoming imperative. Whilst these have been around for a long time, compatibility of seals and clearances is a design challenge we rise to. However, as the technology of these bio fluids becomes more and more advanced a wider range of components become compatible.

Where are hydraulic power units used?

Our compact, diesel-driven hydraulic power units can be used for offshore, onshore or marine applications for provide a hydraulic power solution for equipment such as: hydraulic spoolers/reelers, marine cranes, diver tooling, winches, and casing tongs.

HPU CASE STUDIES

74kw HPU – Industrial Application

Prior Power Solutions was commissioned to design and build an HPU for a crane at the Rothera Research Station, the largest British Antarctic research facility. The HPU needed to operate reliably in extreme conditions – namely between -40°C and 30°C.

Our bespoke, self-contained 74kW HPU was designed with reliability and ease of maintenance in mind and supplied with full redundancy spares for routine ongoing maintenance in it’s remote location.

Find out more in our case study below.

FIND OUT MORE

340kW HPU – Oil & Gas Application

Diesel-driven
Split skid
ATEX Zone 2
Acoustic
CE-marked

129kW HPU – Marine Application

Stage V Hydraulic Power Unit

Find out more about this custom-built Hydraulic Power Unit (HPU) from one of our Project Engineers.

Working closely with our customer throughout the process our team ensured this HPU met their exact requirements to power their emergency response rotary equipment.

Maximum output pressure of 210 Bar as well as switchable lower maximum system pressures for optimum compatibility and protection of lesser rated equipment when required.
Three bi-directional proportionally controlled outlets.
Powered by a Stage V engine and acoustically housed in a fully self-contained unit with a small physical footprint.

Prior Power Solutions undertakes all aspects of design, fabrication and assembly in-house to ensure the highest quality build and total control of built schedule.

Stage V HPU Case Study

ELECTRIC HYDRAULIC POWER UNIT

Our self-contained electric hydraulic power units are designed for optimal running efficiency and are suitable for various hydraulic power applications.

Compact and lightweight, they are certified for use in hazardous areas and equipped with stainless steel hydraulic tanks and hydraulic filtration for optimum fluid cleanliness and long service life.

The paint specification and RAL number can be tailored to your individual requirements.

Take a look at our 40kW Zone 1 HPU datasheet below or contact us for other power and flow pressure requirements.