Connection List
The connection list gives you access to the VAM® and NSMAXᵀᴹ product lines. Because not all products can be listed, such as fit-for-purpose or so-called isolated products, please contact Nippon Steel engineer in case the VAM® or NSMAXᵀᴹ connection you are looking for is not listed.
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.
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Applicable range
- VAM FJL is available from 2 3/8" to 11 7/8"
- API weights
- Standard, Alternative and Special Drifts
- Carbon steel and Corrosion Resistant Alloy material
- Yield strengths from 80 ksi to 140 ksi
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.
