Bending Restrictor Sleeve - BRS
BRS are included in the pipeline assembly when the reeling installation method is used. The design of a pipeline installed by reeling includes considerations for ovality resulting from bending. Hence a BRS only controls the strain level consistent with the bending radius.
- Collars transfer tension forces by closing of slots A.
- Collars transfer compression forces by closing of adjoining gaps C.
- Collar B includes an inflatable packer or friction connection for conveyance to the seabed.
- Annulus between collars and the pipeline accommodates passage of insulation and anodes.
- Component shown in green represents the pipeline and red of high strength material.
- All components corrosion coated with thermal spray aluminum (TSA).


Design Considerations
The BRS is designed for the moment experienced when providing the support and limitation of strain for the pipeline when crossing an obstruction.
- Determining the location of BRPJ in the pipeline using a long baseline acoustic array is identical to terminating pipelines.
- BRS is suspended at the pipe departure location with the pipeline fed through when unreeling.
- Inflatable packer or spring-loaded friction connection engaged at the required location for conveyance to the seabed.
- Series of assemblies can be interconnected and spaced to fit the profile to be crossed.
PO Box 42484
Houston, TX 77242
281 531 5220
281 660 3404