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OCTG API 5CT / 5B Coupling/CouplerStandard API 5CT & 5B
Application : Connect two pipes
Grade : J55, K55, N80, L80, P110
Tubing Range : 1.050 ~ 4 1/2"
(EU and NU)
Casing Range : 4 1/2 ~ 20"
Grade : J55, K55, N80, L80, P110
Thread : STC, LC, BC
Coupling/Coupler (used in piping or plumbing) is a very short length of pipe or tube, with a socket at one or both ends that allows two pipes or tubes to be joined, welded (steel), brazed or soldered (copper, brass etc.) together.