ULTRA™ SF
Integral semi-flush, with patented ULTRA™ thread giving it exceptional strength. Tested and validated under ISO 13679 CAL IV.
ULTRA™ SF
FullContact™ threads
Give deep stapping, high performance and even stress distribution.
Metal-to-metal seal
Locking center-shoulder seal with two sealing surfaces for redundancy. This configuration maintains pressure integrity under combined loading.
Run-in/Run-out threads
Maximize critical cross-section area, increasing tension-compression efficiency.
ULTRA™ SF
This second-generation integral semi-flush connection features the patented ULTRA™ thread form, which is designed for superior performance. Tested and validated per ISO 13679 CAL IV, it is recognized among the strongest semi-flush joint connection on the market.
Features
- Sizes 3 ½” – 13 ⅝”
- OD approx 2-3% greater than pipe body
- Deep stabbing, easy make up
- Driftability retained in over-torque conditions
- High torque capacity and fatigue resistance
- Sealing performance above MYIP, validated under ISO 13679 CAL IV protocols
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