Polyurethane bend stiffeners are typically utilized at the terminate areas where flexible pipes, power cables, and umbilicals. They are designed to add stiffness to the line, thus limiting bending stresses and curvature to acceptable ranges.
The materials of bendd stiffener
No other elastomer bend stiffener can match the tensile and tearing capabilities of bend stiffeners manufactured of polyurethane materials. The flexibility of the polyurethane bending stiffeners can be adjusted by setting the correct hardness to limit cable movement and prevent damage, thereby protecting the umbilical.
The static and dynamic applications of bend stiffener
Bending stiffeners can be used in both static and dynamic applications.In static applications, bend stiffeners will provide protection against overbending during installation. In dynamic applications, with sufficient fatigue resistance, the bend stiffeners will control a cables’in-service bend and sustain the cyclic loads to the end of specified life.
Major advantage
· Provides additional local stiffness to the umbilical or flowline.
· Limits bending stresses and curvature.
· Prevents excessive bending that might harm structures.
Material Specs
Material : | Ether-based Polyurethane |
Durometer: | 50A – 70D |
Specific Gravity: | 1.04 – 1.60 |
length（max） | 13 feet |
weight（max） | ≥2000 pound |
