Polymer Bend Restrictor

The polymer bend restrictor is assembled by the hinged assembly of multiple semicircular segments. This structure remains flexible when not under stress and contacts each segment when bending under tension, thus forming a gradually hardened mechanical support that prevents the pipe and cable from reaching a damaging bending angle.

Features of the polymer bend limiter

• High durability

Using engineering polymer materials that are resistant to seawater, corrosion, UV, and impact, it is suitable for long-term use on the seabed or in harsh environments.

• Modular design

The segmental vertebrae assembly structure is easy to transport, install, and maintain, and the length and stiffness can be flexibly adjusted according to different bending radius requirements.

• Progressive support mechanism

As the degree of bending increases, the segments gradually contact to form an "interlocking" effect, effectively limiting excessive bending.

• Lightweight and high strength

It is lighter and easier to operate than traditional metal limiters, and has excellent mechanical strength and pressure resistance.

• Easy to install

It can be quickly assembled on the outside of the cable body without the need for additional special tools, reducing the difficulty and cost of construction.

Typical use scenarios of polymer bend limiters

• Submarine cable protection

Installed at key corners such as where the cable enters the J-tube, riser, wellhead, etc., to prevent the cable from bending due to tides, water flow, or tension.

• Floating production system (FPSO) hose protection

Used in the connection area of risers, flexible risers, and floating pipelines to prevent the hose from being damaged by surge movement.

• Offshore wind farm cable protection

Protect the connection between the wind turbine foundation and the dynamic cable to ensure high reliability of operation.

• Industrial hose and hydraulic pipeline system

In dynamic equipment such as port loading and unloading, drilling platforms, and robot arm pipelines, prevent high-frequency movements from causing pipeline fatigue breakage.

• Combination system of buoy and distributed buoyancy module

Used with a buoyancy module, it has both buoyancy control and bending protection functions, and is suitable for long-distance deep-sea cable laying.

Polymer bend limiter has become an indispensable pipe and cable protection device in modern marine engineering and various industrial applications due to its excellent mechanical properties, flexible design structure, and high adaptability in complex environments. Through reasonable selection and layout, it can not only greatly improve the stability and safety of the system, but also extend the service life of the equipment and reduce maintenance costs.

If you need to customize the polymer bend limiter suitable for your engineering needs, please contact professional manufacturers for technical support and solution suggestions.