Vallourec Group Legal Notice | Terms & Conditions | 

VAM® FJL (Flush Joint Liner) is a 100% inside and outside flush integral connection providing maximum clearance with optimum strength for liners, moderate depth casing, and tight-hole tubing strings.

- Excellent gas tightness
- Maximum clearance (100% flush)
- Easy to use and repair

Integral Flush Design

  • VAM® FJL is an integral connection threaded on plain-end pipe with the OD of the connection totally flush with the pipe body.
  • Sizes range from 2 3/8" to 11 7/8" for such clearance applications as tubing in small sizes, drilling liners and tiebacks in medium sizes, and contingency liner in larger casing diameters.

External Torque Shoulder

  • A patented reverse angle external torque shoulder provides a positive torque stop and energizes the external metal-to-metal seal.
  • This shoulder also permits visual confirmation of power-tight make-up.

Multiple Seal System

  • An external seal and an internal seal work independently of each other to achieve sealing against annulus and well bore pressures.
  • This multiple seal arrangement ensures gas-tight sealing integrity to 100% of the rated burst and collapse of the pipe body.

Interference Tapered Thread

  • In order to provide optimum strength, the VAM® FJL is designed for 65% to 70% efficiency under tension in medium wall thickness.
  • Thread load flank has a 15° reverse angle to resist jump out.
  • Thread stabbing flank has a 45° angle for fast, trouble-free make-up.
  • The design of VAM® FJL exhibits an exceptional bending resistance for a connection of this class.

Streamlined Internal and External Profile

  • The O.D. and I.D. are 100% flush (there is no upset).
  • The I.D. is bored and recess-free for smooth, efficient flow.
  • The O.D. is turned to tight tolerances.
  • VAM® FJL can be repaired by VAM® licensed workshops. Only slight pin end swaging is needed for machining threads.

BE VIGILANT: we have been informed by some customers of phishing emails relating to job opportunities made to look like they are from our company but which are actually from identity thieves. It is not Vallourec's policy to send unsolicited emails under any circumstances. Please note that all our job opportunities are available on If you get an email that looks suspicious, do not respond and alert us by forwarding it to Mr Help.
VAM® is registered Trademark of Vallourec Oil and Gas France