In challenging subsea environments, cables and pipelines are constantly exposed to abrasion, impact, and extreme pressures. To ensure long-term durability and reliability of subsea infrastructure, modular interlocking cable protection systems made from high-performance polyurethane elastomers have become the industry standard. These protective components are engineered to shield subsea flowlines, power cables, fiber optic cables, and umbilicals from mechanical damage and environmental hazards.
Material & hardness
The core material used is high-performance polyurethane elastomer, selected for its exceptional mechanical strength, seawater resistance, and flexibility. It offers a unique combination of abrasion resistance, impact absorption, and long-term stability under continuous load. The hardness typically ranges from Shore A 85 to Shore D 65, depending on the specific subsea application and the diameter of the cable being protected.
Size & color
These cable protection modules are available in a variety of diameters and lengths to suit different cable types and project requirements. The modular structure allows for customized sizing, making it compatible with various pipeline and cable configurations. Standard colors include yellow, orange, or black, selected not only for visibility during subsea installation but also for UV and marine growth resistance.
Installation method
The system features a modular, interlocking tubular design that allows for quick and secure assembly offshore. Its symmetrical structure simplifies alignment and reduces installation time. The units are held firmly in place using multiple strapping solutions, such as stainless steel bands or integrated locking straps, ensuring tight coverage over the cable without risk of slippage or movement during operation.
Performance characteristics
• High abrasion resistance against rocks, seabed contact, or debris
• Impact energy absorption from accidental drops or subsea tool contact
• Excellent chemical resistance to oil, saltwater, and hydraulic fluids
• Temperature stability for deepwater environments
• Long service life with minimal maintenance requirements
Why install subsea cable protection?
Cables deployed on the seabed are vulnerable to numerous mechanical threats: dragging anchors, fishing gear, seabed movement, and natural abrasion. Without proper protection, these risks can lead to serious damage, downtime, or even complete cable failure—resulting in costly repairs and operational delays.
Typical installation locations
• Cable touchdown zones (TDZ)
• Pipeline crossings
• Rocky seabed regions
• Around subsea structures and tie-ins
• At transitions near J-tubes or bend stiffeners
The importance of quality
Selecting a high-quality polyurethane cable protection system is critical. Inferior materials can degrade quickly, crack under pressure, or detach from cables, offering limited protection. In contrast, robust, well-engineered products provide consistent protection over years of subsea operation, maintaining system integrity and reducing maintenance frequency.
A modular polyurethane subsea cable protection tube is a crucial investment in ensuring the safety, durability, and functionality of marine infrastructure. With excellent mechanical properties, ease of installation, and long-term performance in harsh environments, this solution is indispensable for offshore operators seeking to minimize risk and maximize efficiency.
