CSUB’s J-Tube Ramp is an innovative GRP support structure designed to protect and support subsea cables and flexibles at the transition between seabed and offshore structures through J-tubes, particularly in Offshore Wind Turbines, Offshore Substations and Offshore Rigs. It enables a simpler, safer and more cost-efficient transition compared to traditional solutions.
J-Tube Ramp
Product Features and Advantages
Innovative Design:
The ramp features a curved support channel that ensures optimal cable guidance and protection. An upwardly curving base provides flexibility in vertical positioning, while low-friction contact elements prevent damage to the J-tube during installation and operation.
Seamless Installation System:
The J-Tube Ramp is designed for efficient offshore installation, with a slim profile that allows deployment in confined spaces where J-tubes are closely positioned. The lightweight GRP construction minimizes vessel and crane requirements, reducing both installation time and costs.
Material Excellence:
Constructed from Glass Fiber Reinforced Polymer (GRP), the structure has a corrosion-resistant and maintenance-free design. Expected design life exceeds 50 years.
Versatile Application:
Compatible with multiple cable types and configurable for different seabed conditions, the system is suitable for offshore wind turbines, substations and offshore rigs. As standard, the ramps are delivered as self-stabilizing structures, with options for low-weight ROV-installable units or freestanding structures to meet project-specific requirements.
Proven Track Record:
First delivered nearly a decade ago, CSUB’s J-Tube Ramps have received positive client feedback on simple installation and have proven reliable in operation.
Environmental Benefits:
GRP is an environmentally sustainable material choice for long-life subsea protection and support. Its non-metallic, low-weight design enables efficient installation and long-term, maintenance-free performance.
