​VAM TOP® HC is a derivative connection of VAM TOP®. VAM TOP® HC (High Compression) is a Threaded & Coupled (T&C) premium connection which has been designed with the main features of the VAM TOP® product line. VAM TOP® and VAM TOP® HC are interchangeable.

VAM TOP® HC product lines benefit from the most reliable performances, demonstrated through a large number of qualification tests such as ISO13679 CAL-IV with up to 100% PBYS compression rating.​

 Applicable range


  • Production casing
  • Tubing
  • Liner
  • Tie-Back
  • HP/HT well design​.


  • ​VAM TOP® HC provides 100% PBYS compression performance, and is qualified as per ISO13679 CAL-IV.​


  • Beyond the TOP with compression : Extreme compression resistance
  • Field proven, easy running, demonstrated with more than 5 million joints run to date for VAM TOP® family connection
  • Excellent gas sealability, with more than 25 customers qualification tests, as per stringent testing procedures
  • The premium standard for  OCTG​
    • Providing the best support around the world, with around 200 licensees
    • Widely used for accessories and completion equipment design . 


  • Special Clearance and Special Bevel available
  • Can be used with GRE liner option. Please contact your Vallourec representative for more information.