API 5L Line Pipe Coupling Overview
API 5L Line Pipe is a seamless or welded steel pipe for use in the transportation of petroleum and natural gas. Line pipe coupling is a short pipe with internal threads machined to match the external threads of long joints of line pipe, used for connecting two line pipes, generally made of the same grade steel as the line pipe. The line pipe coupling are threaded with plain-end, threaded-end, or belled-end pipes connected. Our API 5L seamless couplings also feature prepared ends for use with special couplings that ensure a fast and efficient process for all your needs, are your go-to for conveying natural gas, water, and oil.
Wiho Industrial offers a wide variety of couplings for Casing, Tubings and Line Pipes. The OTCG Couplings are manufactured to meet the requirements of API 5CT and API 5L certifications. All line pipe coupling stock is manufactured as per API 5L standard and color-coded and marked, they are certified to API Standards by an independent 3rd party laboratory prior to coupling manufacturing. Below are the specifications and sizes of the API 5L Couplings for line pipe that we offer.
1/8 inch — 12 inch
|Gr. B, X42, X46, X52,
X56, X60, X65, X70, X80
API 5L Line Pipe Couplings Dimension
|Coupling Size||Coupling Size OD (inches)||Length (inches)||Weight per Coupling (lbs)|
- Size up to 1 ½” is black lacquer, and sizes 2” and above are phosphated and black lacquer.
For more information on our extensive size and inventory, please contact us or fill in the form below.