Home : Technical Resources : Premium Connections

• Premium connections used where conditions or design requires higher performance.
• Premium connections employ a PTFE ‘Teflon’ CBR
• Many premium connections available, Key Issue, the connection must accommodate a CBR
• Special Threading Requirements
• T&C tubulars delivered to MaxTube pin-by-pin, couplings loose.
• Special consideration given to lined tubing to unlined accessories, Rule: lined pin mates unlined accessory box with DUOLINE - CBR groove.

Premium Connections Currently Available:

(mouse over links to preview illustration for that connection and click for larger image)

No Torque Shoulder - Position Make-Up Hunting Interlock NuLock FGL (T&C Tubing ) Hunting Interlock SealLock FGL (T&C Casing) Torque Shoulder - Positive Make-Up Benoit BTS-FGL (Integral Tubing & Casing) Nippon Steel NSCT-FGL (T&C Tubing) Nippon Steel NSCC-FGL (T&C Casing) Vam-Top FLD (T&C Casing) Unlined Accessory Premium Thread

For further information please use our General Enquiry Form or for product selection please complete the DUOLINE Selection Form.

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