Diameters: 2 3/8”, 2 7/8”, 3 1/2”, 4 1/2”
Grades: J55, K55, N80-1, N80Q, L80, P110, Q125
Connections: EUE, NUE
Other options:
Special Beveled Couplings
Special Clearance Couplings
Directive 10 ( D-10 ) Couplings
Others upon request
Stocks availability: 2 3/8”, 2 7/8”, 3 1/2”, 4 1/2″
API 5CT Tubing Coupling
Description
API 5CT Tubing Couplings (Tubing Collars) are engineered for secure, pressure-tight connections for Tubing String in oil and gas operations.
Haige provides full range of Tubing Couplings and Casing Couplings as per API 5CT specification for strength, durability, and reliable field performance.
Diameters: 2 3/8”, 2 7/8”, 3 1/2”, 4 1/2”
Grades: J55, K55, N80-1, N80Q, L80, P110, Q125
Connections: EUE, NUE
Other options:
Special Beveled Couplings
Special Clearance Couplings
Directive 10 ( D-10 ) Couplings
Others upon request
Stocks availability: 2 3/8”, 2 7/8”, 3 1/2”, 4 1/2″






