Riser Couplings
AssemblyThe box and pin connectors at each end that join one joint to the next; they must make up fast on a moving rig floor yet hold full tension and seal the main bore. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Riser Couplings
6 top-level lines as of r50188| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Box Coupling 4 parts | drilling-riser-joint-box-coupling | 1× | 1 | 0 | assembly |
| 2 | Pin Coupling 3 parts | drilling-riser-joint-pin-coupling | 1× | 1 | 0 | assembly |
| 3 | Locking Dog | drilling-riser-joint-locking-dog | 8× | 8 | · | part |
| 4 | Preload Stud | drilling-riser-joint-preload-stud | 6× | 6 | · | part |
| 5 | Bore Seal | drilling-riser-joint-coupling-seal | 2× | 2 | · | part |
| 6 | Alignment Pin | drilling-riser-joint-alignment-pin | 4× | 4 | · | part |