Special buckle /RTN-60X

Design Feature

●The unique thread design employs variable pitch technology: the external thread pitch remains constant while the internal thread pitch

adjusts accordingly, enhancing connection efficiency and reducing therisk of thread jamming.

23/8 "to 27/8" with 8 teeth per inch

31/2"-4" 6 teeth per inch

41/2 "to 133/8" with 5 teeth per inch

●The RTN-60X joint features a rounded metal-to-metal sealing structure with a reverse torque shoulder as an auxiliary seal, delivering excellent gas-tight performance and resistance to over-tightening.

●The inner wall of the tube is flush with the inner wall of the coupling;

●Applicable specifications and steel grades

Specifications: 23/8 "to 133/8"

Steel grade: All API and non-API steel grades

Performance Features

●Connection strength-the thread adopts the improved partial trapezoidal thread form, which can be equal to the strength of the tube body;

●Sealing performance---The joint features a multi-layer sealing structure with metal-to-metal sealing and torque shoulder auxiliary sealing, ensuring high reliability and providing internal pressure resistance comparable to the pipe body.

●Composite bearing capacity: The reverse torque inner shoulder is adopted, which makes the joint has strong ability of resisting compression,bending and over torque. At the same time, the surface pressure on shoulder surface can be maintained under bending and composite load.

●The inner plane design can effectively reduce the turbulence of gas or liquid in the pipeline, and minimize the energy loss.