Ultralong lifetime compensators
Fit & forget
Overview
Compensator range designed for 20 years uninterrupted seafloor performance
The ultralong lifetime series compensators have been designed to provide continuous pressure compensation to (semi-)permanent subsea installations. They have a design life of more than 20 years. Typical applications include subsea mining equipment, submerged dredging equipment, and subsea production facilities, such as subsea HPUs, power transformers, and switch gear.
The required design life of 20+ years demanded for an unconventional mechanical design, as the exposure of moving components to the environment must be reduced to a minimum. During the development stage, each detail of the design has been considered with great care: ranging from corrosion protection details to long-term material behaviour of every component. Their qualification was successfully completed, and according to API 17N standards, the compensator currently achieves TRL level 7.
- Typical applications
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- Subsea mining equipment
- Subsea production equipment such as SCM SHPUs and switch gear
- Submersible dredge motor pump compensation
- Key features
-
- Durable design: MTTF of more than 20 years
- Designed, tested, and qualified at the highest industry quality standards
- High degree of customization
- Applied to
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- SHPU for SCM
- 1.7 MW subsea dredge pump motors
- Subsea mining vehicle
To ensure that the right size and type of compensator is selected, we advise our clients during the selection process. We do so, taking temperature ranges, pressure ranges, filling levels, entrapped air, fluid behaviors, and other factors into account.
Key Features
-
Durable design: MTTF of more than 20 years
Thanks to their innovative design, the moving parts of our compensators get minimum exposure to the marine environment. In order to achieve a design life of more than 20 years, compensators have been made highly insensitive to marine growth and corrosion.
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Developed at the highest industry quality standards
In order to ensure a 20 years uninterrupted seafloor performance, this compensator was subjected to extensive testing and qualification programmes, including pressure testing, functional testing, temperature testing, contamination testing, and dynamic operations testing.
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High degree of
customizationThe ultralong lifetime compensator can be configured according to your application and requirements. Adjustments can be made with variations in hydraulic connections, electric connectors, oil level measurement, relief valves, discharge collectors, mounting components, required quality standards and classifications, and maximum operating depths.
Optional
- Level measurement (various grades)
- Advanced testing programs
- Surface treatment
- Water / glycol version
- Adjusted pressure gradient
- Protection cover
- Double fluid barrier
Ultralong lifetime compensator range
- Compensation volume (liters)
- Pressure min / max (bar)
- Depth rating (msw)
- Weight (kg)
- Compensation volume (USG)
- Pressure min / max (PSI)
- Depth rating (ft)
- Weight (lbs)
Ultralong lifetime 0.7L
- Compensation volume (liters)0.7
- Pressure min / max (bar)0.3 (empty) – 1.1 (full)
- Depth rating (msw)5000
- Weight (kg)4
- Compensation volume (USG) 0.18
- Pressure min / max (PSI) 4.35 (empty) – 15.95 (full)
- Depth rating (ft) 16404
- Weight (lbs) 8.8
Ultralong lifetime 5L
- Compensation volume (liters)5
- Pressure min / max (bar)0.3 (empty) – 0.95 (full)
- Depth rating (msw)5000
- Weight (kg)15
- Compensation volume (USG) 1.3
- Pressure min / max (PSI) 4.35 (empty) – 13.78 (full)
- Depth rating (ft) 16404
- Weight (lbs) 33
Ultralong lifetime 10L
- Compensation volume (liters)10
- Pressure min / max (bar)0.3 (empty) – 0.95 (full)
- Depth rating (msw)5000
- Weight (kg)22
- Compensation volume (USG) 2.6
- Pressure min / max (PSI) 4.35 (empty) – 13.78 (full)
- Depth rating (ft) 16404
- Weight (lbs) 48.5
Ultralong lifetime 60L
- Compensation volume (liters)60
- Pressure min / max (bar)0.2 (empty) – 0.6 (full)
- Depth rating (msw)5000
- Weight (kg)270
- Compensation volume (USG) 15.9
- Pressure min / max (PSI) 2.9 (empty) – 8.7 (full)
- Depth rating (ft) 16404
- Weight (lbs) 595
Ultralong lifetime 100L
- Compensation volume (liters)97
- Pressure min / max (bar)0.1 (empty) – 1.2 (full)
- Depth rating (msw)5000
- Weight (kg)288
- Compensation volume (USG) 25.6
- Pressure min / max (PSI) 1.5 (empty) – 17.4 (full)
- Depth rating (ft) 16404
- Weight (lbs) 635
Ultralong lifetime 250L
- Compensation volume (liters)250
- Pressure min / max (bar)0.3 (empty) – 0.5 (full)
- Depth rating (msw)5000
- Weight (kg)995
- Compensation volume (USG) 66
- Pressure min / max (PSI) 4.35 (empty) – 7.25 (full)
- Depth rating (ft) 16404
- Weight (lbs) 2255
Next to our standardized series, Seatools offers custom-made hydraulic compensators that are tailored to your specifications. Please contact our sales engineers to discuss your requirements.
Multimedia
Normal factory testing procedures include internal pressure testing, leakage testing, and functional testing. In addition, we also offer more extensive factory testing and
qualification programs including external pressure testing, fatigue and life cycle testing, temperature range testing, and contamination testing. In addition, the compensator can be delivered flushed to a pre-defined cleanliness level class
Contact
Would you like to discuss your project with our experts?
CONTACT FORM
OTHER CHANNELS
- General
- +31 (0) 186 68 00 00
- info@seatools.com
- Sales
- +31 (0) 186 68 00 00
- sales@seatools.com
- Service (outside office hours, emergency only)
- +31 (0)186 65 00 75
Alternative compensator series
Basic Series
A range of cost-effective underwater pressure compensators that feature a light-weight design and volumes ranging from 0.6 to 6 litres. Because mass constitutes an important criterion in the construction of ROVs, our light-weight basic series compensators are a perfect match for ROV applications.
Advanced compensators
High-end subsea hydraulic compensators with compensation volumes ranging from 6 to 15 liters. Time-proven, highly reliable, and solid designs that facilitate relatively high overpressures. Largely customizable, with options for hydraulic connections, electric connections, level measurement, and more.
Heavy duty series
Rugged design subsea hydraulic compensator range with capacities ranging from 40 to 250 litres. Made from stainless steel and able to withstand the most severe of conditions during operations, such as dredging operations, when shock loads and vibrations are ever present.