Line pipes and fittings in the UAE are the API 5L steel pipe, high-yield butt weld fittings, flanges and tees that make up oil, gas and water transmission lines for ADNOC and other operators. This page lists UAE line pipe and fitting suppliers and explains pipe making routes, PSL levels, MSS SP-75 fitting grades, matching pipe to fittings, inspection documents, and what sets price and lead time.
0 suppliers found
Skip the search. Post your requirement and we'll connect you with verified line pipes & fittings suppliers who quote for your order directly.
Tell us about line pipes & fittings in UAE and receive competitive quotes from verified suppliers — free, fast, and no obligation.
Line pipe is steel pipe made to API Spec 5L for carrying oil, gas and water between wells, plants and terminals; pipeline fittings are the elbows, tees, reducers, caps and flanges welded into that pipe, made in matching high-yield grades. Both belong to the wider pipeline equipment and materials family for the UAE, which covers the pipe string as a whole. This page goes into the pipe and fitting detail a buyer needs for a material requisition.
| Item | Typical UAE use | What the requisition must state |
|---|---|---|
| Seamless (SMLS) line pipe | Flowlines, high pressure gathering lines, sour service spools, small bore station piping | API 5L grade and PSL, OD and wall, sour or offshore annex, end finish |
| ERW / HFW line pipe | Gathering and water lines, utility and firewater mains, medium diameter trunk lines | Grade, PSL 2 weld seam testing, wall tolerance, hydrotest pressure |
| LSAW and HSAW (spiral) line pipe | Large diameter gas and water transmission lines | Grade, diameter and wall, weld seam inspection, coating interface, length |
| High-yield butt weld fittings (WPHY) | Elbows, tees, reducers and caps welded into pipelines and stations | MSS SP-75 WPHY grade matched to pipe, wall at the weld bevel, NPS |
| Barred and split tees | Piggable branch connections and hot tap points | Bar spacing for pigging, design pressure, reinforcement |
| Weld neck flanges and blinds | Valve, pig trap and station connections | ASME B16.5 or B16.47 class and face, bore matched to pipe wall, material grade |
Pipe and fittings are rarely bought without their protection: specify the external pipeline coating and field joint system with the pipe order, and the insulating joints that separate the line for cathodic protection. Plant piping inside the process fence usually comes under general pipe fittings and flanges and carbon steel process pipe instead.
Choose line pipe for UAE service in this order: fluid and sour content, design pressure and temperature, diameter, then construction route. The fittings follow the pipe: same or compatible strength grade, matching wall at the weld bevel, and the same sour service requirements.
API 5L sets two product specification levels. PSL 2 adds tighter chemistry, mandatory toughness testing and nondestructive inspection of welded seams, and it is the level that carries the sour and offshore annexes. Most hydrocarbon transmission lines specified by ADNOC group companies and their EPC contractors call for PSL 2; PSL 1 is still found on water and low risk utility lines.
Seamless pipe has no weld seam, which suits small diameters, thick walls and severe sour duty. ERW pipe is economical in small and medium diameters with good wall tolerance. Longitudinal and spiral submerged arc welded pipe covers the large diameters used on gas trunk lines and water transmission from coastal desalination plants. Ask the mill which sizes it rolls in-house, because some offers are traded pipe from a third mill.
MSS SP-75 covers factory-made seamless and welded carbon and low-alloy butt weld fittings for high pressure gas and oil transmission, in seven classes from WPHY-42 to WPHY-70 and up to NPS 60. For NPS 14 and smaller it refers to ASME B16.9 dimensions. Order fittings in a WPHY class that matches the API 5L grade of the pipe (for example X65 pipe with WPHY-65), and give the fitting maker the pipe wall so the bevel transition suits the girth weld. Hot induction bends are outside SP-75 and are ordered to their own specification.
Several Abu Dhabi gas systems carry H2S, so pipe, fittings and flanges for those lines need the API 5L sour annex and hardness limits under NACE MR0175/ISO 15156, applied the same way to every component. Buried lines through coastal sabkha also depend on the coating and cathodic protection, which is why the parent page treats those as one system.
As of 2026, UAE line pipe and fittings are bought to API, ISO, MSS and ASME documents named in the owner's specification, with the line itself designed to ASME B31.4 or B31.8. There is no separate UAE product certificate for line pipe; ADNOC vendor approval and MoIAT's ICV certificate decide who can bid.
| Requirement | Applies to | Body |
|---|---|---|
| API Spec 5L, 46th edition | Seamless and welded line pipe, PSL 1 and PSL 2 | American Petroleum Institute |
| ISO 3183:2019 | Line pipe; supplements API 5L 46th edition with ISO exceptions. Confirmed in 2026 | ISO |
| MSS SP-75 | High-strength wrought butt weld fittings, WPHY-42 to WPHY-70, up to NPS 60 | Manufacturers Standardization Society |
| ASME B16.9, B16.5 and B16.47 | Butt weld fitting dimensions; pipe flanges up to and above NPS 24 | ASME |
| ASME B31.4 / B31.8 | Design and testing of liquid and gas pipelines | ASME |
| ADNOC Supplier Hub registration and ICV certificate | Bidding to ADNOC group companies and many UAE public buyers | ADNOC; MoIAT |
For each heat of pipe, ask for the mill test certificate with chemistry, tensile, toughness and hydrotest results, and check the API Monogram licence in API's directory if the specification asks for monogrammed pipe. The guide to pipe fitting and flange standards for GCC buyers explains certificate types and what to look for in fitting markings.
UAE pipelines draw pipe from mills abroad and in the region through their agents, while fittings and flanges come both from forging houses and from stockists in Musaffah, Jebel Ali and Hamriyah. Project pipe is made to order; stockists hold common grades, sizes and fittings for tie-ins and repairs.
Ask whether a quote is mill-direct or from stock, and for stock items ask to see the original mill certificate rather than a stockist's copy. For valves on the same line, see the pipeline valves category. To collect quotes against your material take-off, post your line pipe requirement.
Line pipe prices track steel coil and plate markets, while lead time is mostly mill rolling slots, coating plant capacity and inspection. Fittings in large diameters and high WPHY grades are forged or formed to order and can set the critical path.
