Basic Passive Heave Compensator
Rigel is an old-school basic passive heave compensator updated with a few modern twists. It is the go to choice for simple lifting operations that have dynamic challenges, primarily splash zone crossings.
Rugged Simplicity
Rigel is a single cylinder passive heave compensation unit, with a simple and reliable design, that has competitive advantages:
- Light weight
- Low cost
- Comparably low stiffness
- Externally adjustable damping
- Fast gas filling
10 - 250 t
Maximum force
1 - 6 m
Stroke length
3000 m
Depth rating
∞
Adjustable damping
Classification
Rigel is designed, classed and tested according to DNV ST-0378.
All-in-one package
Cylinder, valves and accumulator integrated into one compact package that is well suited for rough offshore usage. Comes with shackles, lifting points and supportive feet.
Sustainability
Committed To Safety
We follow and exceed the testing requirements in DNV RP-N202. All Norwegian Dynamics subsea compensators have double seals to protect against water ingression.
We Follow Best Practices
Our products are designed upon decades of experience with subsea and compensation equipment. Common problems and time consuming actions are removed.
- Biofluid Compatible
- Fast Delivery
- CFD optimized
- Latest Improvements
Application videos
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Frequently Asked Questions
The Rigel Basic PHC is very well suited for lifting through the splash zone and shock absorption. It can also be utilized for subsea landings and subsea retrieval.
- Reduced leakage risk
- Easier and much faster filling of gas
- Easier and much faster filling of oil
- Easier air bleeding
- Lower stiffness
- Lower weight
- Externally adjustable extension damping
- Externally adjustable return damping
- Lifting points for easier handling
- Support feet to avoid rolling
- Better filling kit
- Easier to use calculation sheet