Do You Really Know Bend Restrictors
Primary function of polyurethane vertebrae bend restrictor, is to protect cables, wires, and other flexible conduits from excessive bending, which can lead to damage, signal degradation, or even complete failure of the system. Bending restrictors are widely used in various applications, including telecommunications, marine operations, robotics, and industrial machinery. Understanding their structure and function is essential for anyone involved in designing, installing, or maintaining these systems.
Structure of the Bend Limiter
Buoyant Vertebrae Bend Restrictors are two-piece, polymeric, split design. Subsea bend restrictors comprises a number of interlocking elements which articulate when subject to an external load and lock together to form a smooth curved "locking" radius.
Typically deployed at pipeline end terminations (PLETs) and wellhead connectors, polyurethane bend stiffeners can be supplied with specific end terminations to allow for easy mating to any rigid structure that needs to protect its flexible pipeline, umbilical or cable from overbending, for example tether clamps.
Advantages of Bending Limiters
Ease of Installation and Maintenance: Bend limiters are designed to be easy to install and maintain. They often come with simple mounting mechanisms and can be quickly attached or removed without requiring specialized tools. This ease of use makes them a practical solution for a wide range of applications.
Avoid excessive bending：A vertebrae bend restrictor (VBR) is designed to protect a subsea control line umbilical from bending stresses that can occur during normal offshore installation and operation. It offsets the action of applied loads which could kink or buckle the internal conduits of an umbilical, cable, flexible riser pipe or MUX line.
Reduce stress：Polyurethane Bending Restrictor can reduce the pressure effect of seawater on the pipe.It can also resist the impact and damage of external environmental forces such as seawater, wind on the flexible pipes, flowlines, power cables and umbilicals.
The structure of the bend restrictor may vary depending on its specific application and the type of cable or conduit it is designed to protect. If you have special requirements, please contact us for further discussion.
