Subsea Hydraulic Pressure Unit (HPU)

The Subsea Hydraulic Pressure Unit (HPU) is a reliable and compact power source that delivers hydraulic energy for a wide range of subsea applications. It provides consistent, efficient, and controlled hydraulic performance, even in deep-water environments. Whether you use it as a standalone HPU for ROV manipulators or as an accumulator charging system, it ensures stable power delivery at every depth.

Our subsea HPU systems are ideal when additional hydraulic power is needed underwater. Each unit includes a high-efficiency piston pump that generates up to 5,000 PSI above ambient pressure and provides flow rates up to 0.5 GPM. Built for demanding subsea operations, the HPU operates at depths of up to 4,000 meters and supports a wide DC operating voltage range. Moreover, its robust construction ensures long-term reliability in challenging offshore conditions.

For flexible control and easy integration, the Subsea Hydraulic Pressure Unit features RS-232 and RS-485 serial interfaces. These allow advanced monitoring, data feedback, and remote control. In addition, operators can adjust flow rates through an analog voltage control input, which offers smooth and adaptive hydraulic performance across various underwater systems.

Product configurations

Each Subsea HPU can be customized to match specific project requirements. Configuration options include:

• Flow rate selection

• Output head pressure

• Operating voltage range

This modular design simplifies integration into existing subsea systems and adapts easily to new projects. Consequently, it provides flexibility for engineers who need tailored hydraulic solutions.

Key applications of the Subsea Hydraulic Pressure Unit

The Subsea Hydraulic Pressure Unit (HPU) supports multiple underwater applications, including:

• Standalone hydraulic power for ROV manipulators

• Accumulator charging for subsea tools and systems

• Auxiliary hydraulic supply for intervention skids and subsea modules

In addition, its compact size and customizable configuration make it a versatile choice for both permanent and temporary subsea installations.

Testing and quality assurance

Before delivery, our team performs a complete Factory Acceptance Test (FAT) on every unit. This process verifies pressure capacity, flow stability, and electrical performance. We then document all test results for full traceability and certification. As a result, each HPU meets the highest subsea standards and arrives ready for deployment.