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To provide our customers with timely deliveries WestCan maintains a large stock of API Certified K55, L80 and P110 Casing Couplings at our facility in Edmonton, Canada.

  • All Coupling Stock is certified to API Standards by an independent 3rd party laboratory prior to coupling manufacturing.
  • After machining all couplings undergo 100% thread inspection.
  • Colour Coding and Marking as per API Standard
  • MTRs available for all coupling

  • Special Clearance Buttress Casing Couplings up to 10-3/4” are available on request.
  • Slip on Couplings available on request.
  • The manufacturing of certain Sizes and Grades of large diameter Casing Coupling are subject to the availability of raw material.
  • Certain proprietary threads available upon request. Additional information such as End User and location maybe required by OEM prior to approval
  • WestCan does not offer unlicensed copies of proprietary threads

Tubing Couplings Availability Chart

Size / Type4-1/2"5"5-1/2"6-5/8"7"7-5/8"8-5/8"9-5/8"10-3/4"11-3/4"13-3/8"16"20"
Short Thread STC K55
Long Thread LTC K55
API Buttress K55
Long Thread LTC N80
API Buttress N80
Long Thread LTC L80
API Buttress L80
Long Thread LTC P110
API Buttress P110
  • Standard Stock Items
  • Available On Request
  • Available Not API Specified
  • Not Specified By API

Tubing Thread Availability

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Casing Couplings