Compensator for 20 years of uninterrupted seafloor performance
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Ultra-long lifetimeprototype compensator

Compensator for 20 years of uninterrupted seafloor performance

Overview

The development of a pressure compensation technology capable of delivering uninterrupted seafloor performance for a duration of more than 20 years

Our client Siemens AS required a subsea compensator capable of delivering uninterrupted seafloor performance for a duration of more than 20 years. Even though our “regular” compensators are designed to achieve high levels of reliability, the delivery of a subsea compensator that would meet our client’s requirements demanded a different design approach.

During the project, our mechanical engineers made sure to consider every detail of the compensator’s design: from the influence of marine growth on durability, to the safe and controlled assembly of the spring-loaded parts. Following assembly, the compensator was subjected to extensive testing and qualification programmes, including pressure testing, functional testing, temperature testing, contamination testing, and dynamic operations testing. Our in-house extensive qualification programme guaranteed the uninterrupted long-term performance of this mission-critical system.

Project scope
  • Design, manufacturing, and qualification of a special purpose subsea hydraulic compensator
Delivery date
  • October, 2013
Project duration
  • 9 months
Client
  • Siemens AG

Features & Specifications

  1. Unique mechanical design for extreme durability

    To achieve the challenging durability requirements, we delivered a fully-fledged mechanical design minimising the number of dynamic components exposed to seawater.

  2. Developed at the highest industry quality standards

    The compensator has successfully completed extensive testing and qualification programmes, including pressure testing, functional testing, temperature testing, contamination testing, and dynamic operations testing.

  3. Technology developed from TRL 0 to TRL 5

    And currently at TRL 6

Ultralong life subsea pressure compensator prototype

Specifications

  • Capacity 97 litres
  • Pressure range 0.1 bar – 1.2 bar
  • Design lifetime 20 years
  • Depth rating 500 msw
  • Oil level indicator Matre with Tronic connector
  • Weight (excl. fluid) 300 kg

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