One of the challenges of a J-lay installation is to keep the pipe where it should be.
The tensioners used for this should be designed as compact as possible to keep the dimensions of the total
installation under control.
This of course means that stresses in the various components are taken to the limit and the result is a
relatively flexible construction.
By using D-glide bushings in all joints and hinges peak stresses remain relatively low because of the low
stiffness of the material.
The bearings easily take up the misalignments caused by the flexibility.
Advantages of the D-Glide solution
- Compact ‘efficient’ design
- Relatively low stresses in the ‘joint area’
- Small misalignments allowed
- No corrosion problem
Off-Shore J-Lay Tower S7000:
One of the largest J-Lay installations
in the world with D-Glide bearings in