API 5L Line Pipe Coupling

Standards: API 5L
Size: 1/8″ – 12″
Process: Seamless
Material: L245 or Grade B
Pipe: ASTM A865
Surface Treatment: Black lacquer or phosphated

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.

Size

Grades

Connections

1/8 inch — 12 inch

Gr. B, X42, X46, X52,

X56, X60, X65, X70, X80

Plain-end, Threaded-end

Belled-end

API 5L Line Pipe Couplings Dimension

Coupling Size	Coupling Size OD (inches)	Length (inches)	Weight per Coupling (lbs)
1/8	0.563	1.0625	0.04
1/4	0.719	1.6250	0.09
3/8	0.875	1.6250	0.13
1/2	1.063	2.1250	0.24
3/4	1.313	2.1250	0.34
1	1.576	2.6250	0.54
1 1/4	2.054	2.7500	1.03
1 1/2	2.200	2.7500	0.90
2	2.875	2.8750	1.86
2 1/2	3.375	4.1250	3.27
3	4.000	4.2500	4.09
3 1/2	4.625	4.3750	5.92
4	5.200	4.5000	7.59
5	6.296	4.6250	9.98
6	7.390	4.8750	12.92
8	9.625	5.2500	23.18
10	11.750	5.7500	31.55
12	14.000	6.1250	49.27