COMPANY HEADER
  • Steel Merchant and API Line Couplings
  • Meets or exceeds all applicable ASTM, ANSI and API standards
  • Merchant Couplings stocked 1/8"- 6" diameters
  • API Line Couplings stocked 1/8"-8" diameters
  • API Couplings are rated at 300 PSI
  • API Couplings have tapered threads per API 5B
  • Full stock of specialty couplings, such as Half Couplings and Right and Left Couplings
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Item #

Item Name

Nominal Diameter

Outer Diameter (O.D)

Pressure Rating

Coupling Type

N/A 3/8 Inch (in) Nominal Diameter API Coupling N/A 3/8 in N/A 0.875 in N/A 300 psi N/A API
N/A 1/2 Inch (in) Nominal Diameter API Coupling N/A 1/2 in N/A 1.063 in N/A 300 psi N/A API
N/A 3/4 Inch (in) Nominal Diameter API Coupling N/A 3/4 in N/A 1.313 in N/A 300 psi N/A API
N/A 1 Inch (in) Nominal Diameter API Coupling N/A 1 in N/A 1.576 in N/A 300 psi N/A API
N/A 1-1/4 Inch (in) Nominal Diameter API Coupling N/A 1-1/4 in N/A 2.054 in N/A 300 psi N/A API
N/A 1-1/2 Inch (in) Nominal Diameter API Coupling N/A 1-1/2 in N/A 2.200 in N/A 300 psi N/A API
N/A 2 Inch (in) Nominal Diameter API Coupling N/A 2 in N/A 2.875 in N/A 300 psi N/A API
N/A 2-1/2 Inch (in) Nominal Diameter API Coupling N/A 2-1/2 in N/A 3.375 in N/A 300 psi N/A API
N/A 3 Inch (in) Nominal Diameter API Coupling N/A 3 in N/A 4.000 in N/A 300 psi N/A API
N/A 4 Inch (in) Nominal Diameter API Coupling N/A 4 in N/A 4.625 in N/A 300 psi N/A API
N/A 5 Inch (in) Nominal Diameter API Coupling N/A 5 in N/A 6.296 in N/A 300 psi N/A API
N/A 6 Inch (in) Nominal Diameter API Coupling N/A 6 in N/A 7.390 in N/A 300 psi N/A API
N/A 8 Inch (in) Nominal Diameter API Coupling N/A 8 in N/A 9.625 in N/A 300 psi N/A API
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