• Haige provides full sizes and steel grades Casing Couplings and Casing Couplings for oil and gas as per API Specification 5CT. Casing Couplings Specifications: Diameters: 4 1/2" through 20" Grades: J55, K55, N80-1, N80Q, L80, P110, Q125 Connections: STC, LTC, BTC Other options: Special Clearance Couplings Special Beveled Coupling Directive 10 ( D-10 ) Couplings Special dimensions upon request Stocks availability: 4 1/2", 5 1/2", 7", 9 5/8", 13 3/8", 20"
  • Haige provides full sizes and steel grades Tubing Couplings and Casing Couplings for oil and gas as per API Specification 5CT. Tubing Couplings Specifications: 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 Special dimensions upon request Stocks availability: 2 3/8", 2 7/8", 3 1/2", 4 1/2"
  • Blast Joints are heavy-duty tubular made to protect production tubing. They guard against erosion, abrasion, and wear in fast-moving well environments. Commonly installed across perforated intervals, they provide enhanced wall thickness and surface protection. This helps to extend tubing service life and keep the well safe. Blast joints are widely used in oil and gas production wells where sand, debris, or turbulent flow is present.
  • The Tubing Pup Joints and Casing Pup Joints are shorter versions of Tubings and Casings, which used to adjust the string to exact length. They have same weight and specifications as the Tubing or Casing they attach to. Specifications: Diameters: 2 3/8" through 20" Grades: J55, K55, N80-1, N80Q, L80, P110 Lengths: 2', 4', 6', 8', 10', 12', 15', 20' Connections: EUE, NUE, STC, LTC, BTC Other options: Perforated / Slotted / Others upon request
  • Haige provides full range of Tubing Couplings, Casing Couplings and Special Clearance Couplings for oil and gas operation. Specifications: Diameters: 2 3/8" through 20" Grades: J55, K55, N80-1, N80Q, L80, P110, Q125 Connections: EUE, BTC
  • X-over (Crossover) is used to connect pipes or equipment with two different connections or outside diameters. Haige’s X-overs come in all API 5CT Grades and connections.
    • EU x NU
    • LTC x BTC
    • STC x BTC
    • 2 7/8" x 3-1/2"
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