Negative load flank prevents the possibility of thread jump-out and insures predictable tensile performance. Rugged thread height varies from 0.035 to 0.067 depending on diameter. Center Step Reverse Angle Torque Shoulder Seal Provides a positive makeup position for the pin and box. Capable of resisting API pipe body internal and collapse pressures. Integrity not affected by multiple trips.
Seal is generated by radial interference, reducing the effects of tensile load and back off.
Capable of resisting API pipe body internal pressure. Seal mechanism energized by internal pressure. Integrity not affected by multiple trips. Swaged and Bored Pin, Expanded Box Guarantees a uniform and concentric radial seal area to insure the primary seal integrity. Bore diameter exceeds API standard drift diameter or alternate drift diameter on applicable sizes and weights.