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Discussion History

Main Riser Tube

Assembly

The large-bore central pipe that carries the drill string and returns; everything else on the joint hangs off it, and it takes the full string tension. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Riser Tube parts and their functions

5 top-level parts · 7 parts in total · full bill of materials below
Main Riser Tube parts diagram: 1 riser tube body, 2 internal wear liner, 3 end forging, 4 weld overlay band, 5 external coating. 7 parts in 5 top-level items.
Main Riser Tube parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Riser Tube Body 1× Tube body
2 Internal Wear Liner 1× Internal wear liner
3 End Forging 2× End forgings
4 Weld Overlay Band 2× Weld overlay bands
5 External Coating 1× External coating

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Main Riser Tube

5 top-level lines · 5 rows shown · 7 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Riser Tube Body drilling-riser-joint-tube-body 1× 1 · part
2 Internal Wear Liner drilling-riser-joint-tube-liner 1× 1 · part
3 End Forging drilling-riser-joint-end-forging 2× 2 · part
4 Weld Overlay Band drilling-riser-joint-weld-overlay 2× 2 · part
5 External Coating drilling-riser-joint-tube-coating 1× 1 · part

Where the main riser tube is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Marine Drilling Riser Joint

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks