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Large OD Connections & Connectors

Vallourec supplies you with a complete, comprehensive and competitive offer to answer any of your Surface or Conductor casing needs.

A wide range of Large OD (from 17-7/8″) connections and connectors is now proposed by Vallourec. From our biggest threaded and coupled connections such as BIG OMEGA®, VAM® LOX and VAM® BOLT-II, to the most advanced weld-on connectors sourced directly from our privileged long-term partners and through our most competitive manufacturing routes. Now you can have your full well’s string directly from Vallourec.

Single supplier
Single supplier
Cost effective
Competitive manufacturing routes and privileged agreements with main weld-on connectors suppliers
Extensive offer
Whatever your need, we get it for you.
Performance, Application & Product Range


  • From most basic to most challenging performance requirements
  • Semi-premium and premium items available
  • High Fatigue resistance


  • Large OD connections and connectors are mainly used for Conductor and Surface Casing applications:
  • Conventional wells
  • Offshore wells
  • HP/HT wells
  • Deep wells
Product Range
Product Range
  • Threaded and Coupled (T&C) Connections or Weld-on Connectors
  • Seamless and welded pipes
  • OD Range: from 17-7/8″ up to 36″ and even over
  • Yield Strengths from 55 to 125 ksi
Documents & Resources
Customer Story
Large OD Connections & Connectors
"We are able to provide the full scope of our customer well’s tubing and casing needs, from the smallest to the biggest diameter tubulars. Our competitive routes and our privileged relationships with main weld-on connectors manufactures have already proved to be successful, delivering additional value to our customers."
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