• Twin cantilever design reinforces the coupling, creates high contact pressure (leak resistance) in mating threads, limits expansion and distortion from make-up, reduces assembly pre-stresses, and minimizes thread galling.
  
  
• Easy stabbing without cross threading.
  
  
• Makes up to an internal torque shoulder in 5 to 6 turns and has API triangle stamp for secondary make-up verification.

• Inspect with standard API and MRP gauges and procedures and meets API Drift and OD Specifications.

• Maintains pressure integrity when special clearance.

• Special Clearance OD (SC): Specify GB 3P SC when ordering. See Data Sheets for minimum special clearance OD and associated properties.

• Beveled Bearing Faces: Specify (1) GB 3P for API Bearing Face (standard), (2) GB 3P SB for Short Bevel (45°), or (2) GB 3P LB Long Bevel (18°). (Special Clearance connections cannot be furnished with a bevel).      Bevels
  
  
  AVAILABILITY
  
• GB 3P Couplings are stocked in K-55, L-80, N-80, and P-110 Grades for 16" OD through 20" OD. Grade of couplings supplied depends on availability at time of order placement. Substitutions, when required, will be made in accordance with the adjacent schedule.

Connection formerly known as:   TCC 3P IS