Our TTUS, Upset Shoulder connection is a threaded-and-coupled connection. Pin ends are upset to provide increased strength in tension, torque and compression. The connection provides for a more robust design needed when higher torque, higher compression and rotation are needed through a bend, to drill out a plug or when an API 8rd connection is not sufficient. The 7-tpi (threads per inch) thread design is similar to a buttress thread used on casing, but adapted for tubing sizes. The added torque shoulder gives the connection a stationary mechanical stop to support the higher torque and compression loading.
WHY TTUS?
AVAILABILITY
2 ⅜” OD to 4 ½” OD
APPLICATIONS
High torque and compression with rotation
Workover
Drill out plug
Production well
FEATURES
Standard API upset pin ends
Threaded & coupled connection
7 TPI modifed buttress thread form
Coupling with internal torque shoulder
Flush ID
Pull-out thread
Special clearance (optional)
BENEFITS
Cost effective
Superior to 8-round connection
Robust thread design
100% efficiency under tension/ compression and internal/external pressure
High operational torque
Reduced erosion corrosion
Multiple make-and-break capability
Specified torque range
Multiple thread re-cuts
Test-proven sealability under combined loads
TORQUE-TO-YIELD
Torque-to-yield testing was performed to verify the torsional limits of all TTUS connections.