Over Bend Control Solutions
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We are able to offer a wide range of over bend control solutions. We can offer bespoke designs or make use of a vast range of existing designs ensuring that the customer receives the exact solution required.
Our bending stiffeners have been in service for well over 15 years, protecting and supporting all types of dynamic risers (flexible risers, umbilicals, mooring lines and cables), adding local stiffness to the riser adjacent to limit bending stresses and curvature to acceptable levels. Each bending stiffener that we manufacture is designed to meet the load cases of each individual application.
A bending restrictor is specifically used where static (or quasi static) loads act on a pipe, rather than dynamic loads when a bending stiffener would be more appropriate. The restrictor usually comprises a number of interlocking elements which articulate when subjected to an external load and lock together to form a smooth curved radius known as the locking radius. The locking radius is chosen to be equal to or greater than the minimum bend radius of the pipe. Once the elements lock together the bending moment present is transferred into the elements and back through a specially designed steel interface structure therefore protecting the pipe from potentially damaging loads.