Threaded coupling connection, Ø 73 mm



Lift string, production string, liners, tail pipes, water injection, steam-injection wells



T100NV is a gas tight coupling connection for tubing with a patented cone-to-cone seal profile. It is a modification of T100 and is compatible with VAGT / New Vam thread.


In oil and gas wells, the T100NV thread connection ensures gas tightness under the following ultimate loads:

  • External pressure—100% as per API5C3;
  • Internal pressure—100% of pipe body;
  • Tensile load—100% of pipe body;
  • Compressive load—60% of pipe body (depending on the standard size);
  • Dogleg severity—up to 40°/100 ft.


Make-up testing with VAGT / New Vam thread, VNIITneft OOO, Samara.


  • Patented seal profile providing the retention of gas tightness under combined and reversal loads;
  • Trapezoidal thread profile combined with optimized design of the seal and shoulder providing the retention of gas tightness under dogleg severity of up to 40°/100 ft;
  • Pocket for spreading the excessive thread-sealing grease;
  • Internal flushness

ChelPipe Prime T100NV. Technical data sheet (working connection only)

ChelPipe Prime T100NV. Strength properties of pipes

ChelPipe Prime T100NV, Make-up torques