Polyurethane bend restrictors
At the connection point between flexible pipes, umbilicals, or cables and a rigid structure, movement during operation or forces from installation and recovery can cause bending failure. The bend restrictor provides mechanical protection to limit the bending angle, preventing excessive bending and buckling. The system consists of multiple interlocking elements forming a semi-rigid structure. Under static or quasi-static conditions and within specified design loads, it ensures that the bend radius of submarine cables, umbilicals, risers, or pipelines of any diameter never falls below the minimum bend radius (MBR)
Key strengths
- Bend radius control: Interlocking elements form a semi-rigid structure, ensuring bend radius ≥ MBR and preventing local buckling
- Lightweight design: Low weight in water reduces additional load on pipes or cables
- High durability: Engineered for harsh marine environments with long-term reliability
- Interface adaptability: Can be equipped with end fittings for easy connection to rigid structures
Sizes can be customized to accommodate various cable diameters and minimum bend radius requirements.
Design Features
- Split-body structure: Two-piece snap-fit design for efficient onshore and offshore installation
- Typical applications: Connection points between flexible pipes and rigid structures, umbilical terminations, wellhead connectors, dynamic cables, and riser bend protection.
Image Reference
We offer flexible packaging options for our Polyurethane Bend Restrictors: fumigation‑free plywood cases, pallets, or ton bags.
For optimal protection, products must be stored indoors in a dry, rain‑proof environment, away from moisture.