122 results for 

Flanges Suppliers In UAE | Carbon Steel, Stainless Steel & Alloy Steel Flanges

Logo for  Meraki Star Metals Oil & Gas Equipment Trading L.L.C - Flanges Suppliers in UAE

Location : Storall Logistic Compound, Warehouse no 6-1, Plot no- 721-0, DIP-2

City : Jebel Ali

Phone :  Phone call04 88...

Mobile : Phone call052 3... Phone call055 4

Products & Services


Logo for  Apex Trading Co LLC - Flanges Suppliers in UAE

Location : Warehouse 5, Behind SKM Manufacturing, Street 16, Industrial Area 13

City : Sharjah
P.O Box : 778

Phone :  Phone call06 53...

Mobile : Phone call055 9...

Products & Services


Logo for  Stellanox Steel Trading LLC - Flanges Suppliers in UAE

Location : 307, Office No. 8, 3rd Floor, Breeze Business Centre, Hamsah Tower - A, Karama

City : Dubai

Mobile : Phone call052 5...

Products & Services

Angles, 

Brands


Logo for  AADTRA (Atiq Al Dhaheri and Company) - Flanges Suppliers in UAE

Location : M 44, Mussafah Indl Area

City : Abu Dhabi
P.O Box : 44719

Phone :  Phone call02 55...

Mobile : Phone call052 9...

Products & Services

Valves, 


Logo for  Fitting World Trading LLC - Flanges Suppliers in UAE

Location : Showroom # 14, Nad Al Hamar, Ras Al Khor

City : Dubai
P.O Box : 14183

Phone :  Phone call04 28...

Mobile : Phone call054 7...

Products & Services

Valves, 


Logo for  Star Technofit Trading LLC - Flanges Suppliers in UAE

Location : M33, Mussafah

City : Abu Dhabi

Phone :  Phone call02 55...

Mobile : Phone call050 8...

Products & Services


Logo for  United Pipes and Tubes Trading LLC - Flanges Suppliers in UAE

Location : M 4, Musaffah

City : Abu Dhabi
P.O Box : 91258

Phone :  Phone call02 55...

Mobile : Phone call054 2...

Products & Services


Logo for  Radius Star Piping LLC - Flanges Suppliers in UAE

Location : Al Qusais Industrial Area 2

City : Dubai
P.O Box : 19267

Phone :  Phone call04 26...

Mobile : Phone call050 2... Phone call050 3

Products & Services


Logo for  Al Moosawi Trading LLC - Flanges Suppliers in UAE

Location : Dubai Industrial City

City : Dubai
P.O Box : 251073

Phone :  Phone call04 55...

Mobile : Phone call052 1...

Products & Services

Valves, 


Logo for  Bestway Oilfields FZCO - Flanges Suppliers in UAE

Location : Bestway Yard, Besides Safeer Mall, Ind Area 7

City : Sharjah
P.O Box : 37178

Phone :  Phone call06 53...

Mobile : Phone call050 8...

Products & Services


Logo for  Rajab Trading Co LLC - Flanges Suppliers in UAE

Location : M9, Musaffah

City : Abu Dhabi
P.O Box : 5239

Mobile : Phone call054 3... Phone call056 3

Products & Services


Logo for  Vectorflow Valves - Flanges Suppliers in UAE

Location : Warehouse 2, Street 613-2A, Near Aladdin Roundabout, Ras Al Khor Industrial Area

City : Dubai

Phone :  Phone call04 39...

Mobile : Phone call050 1...

Products & Services

Valves, 


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Logo for  Marhaba Mechanical Equipment Trading LLC OPC - Flanges Suppliers in UAE

Location : Confident Building, Mussafah Industrial Area M-9

City : Abu Dhabi
P.O Box : 91366

Phone :  Phone call02 44...

Mobile : Phone call058 8...

Products & Services

Valves, 
Pumps, 


Logo for  Kays Technical Trading LLC - Flanges Suppliers in UAE

Location : Ras Al Khor Indl Area, Al Aweer

City : Dubai
P.O Box : 47105

Phone :  Phone call04 32...

Mobile : Phone call055 5...

Products & Services


Logo for  Metfit Trading LLC - Flanges Suppliers in UAE

Location : Office 30, Al Jaziri Building, Yusuuf Baker Road, Deira

City : Dubai

Phone :  Phone call04 39...

Mobile : Phone call050 6...


Logo for  Al Khaleel Bldg Mat Tr LLC SP - Flanges Suppliers in UAE

Location : Industrial Area 7

City : Sharjah
P.O Box : 45304

Phone :  Phone call06 55...

Mobile : Phone call050 9...

Products & Services

Angles, 


Logo for  Alphatronic Machinery Trading Co LLC - Flanges Suppliers in UAE

Location : 102, Afra Port Saeed Bldg, Port Saeed, Deira

City : Dubai
P.O Box : 14886

Phone :  Phone call04 33...

Mobile : Phone call056 5...


Logo for  Al Asas Valves Trading LLC - Flanges Suppliers in UAE

Location : Office MD 279, Unique World Business Center, Hamsah-A Building (Ansar Gallery Building), Al Karama

City : Dubai
P.O Box : 90632

Phone :  Phone call04 25...

Mobile : Phone call050 9...

Products & Services

Valves, 


Logo for  Power Seals Machinery Spare Parts Trading LLC - Flanges Suppliers in UAE

Location : Shop 14, Al Aweer Building, Ras Al Khor Industrial Area 1

City : Dubai
P.O Box : 119304

Phone :  Phone call04 33...

Mobile : Phone call052 5...

Products & Services


Logo for  Bright Deal International General Trading LLC - Flanges Suppliers in UAE

Location : Shop 4, Musaffah 37

City : Abu Dhabi

Phone :  Phone call02 67...

Mobile : Phone call052 3...


Showing 1 - 20 of 122
About Flanges Suppliers

Flanges Suppliers in UAE - Complete Guide to Pipe Flanges, Stainless Steel & Industrial Flanges

Looking for reliable flanges suppliers in UAE? This comprehensive guide covers the best suppliers of pipe flanges, stainless steel flanges, weld neck flanges, blind flanges, and specialty flanges across Dubai, Abu Dhabi, and Sharjah. Find verified suppliers, understand flange types and standards, and connect with flange manufacturers and distributors serving the UAE's oil and gas, petrochemical, and industrial sectors.

What Are Flanges and Who Supplies Them in UAE?

Flanges are mechanical components used to connect pipes, valves, pumps, and other equipment in piping systems. A pipe flange provides a bolted connection point that allows easy assembly, disassembly, and maintenance of piping systems while maintaining pressure integrity and leak-tight seals.

In the UAE's extensive oil and gas, petrochemical, water treatment, HVAC, and industrial manufacturing sectors, flanges are critical components appearing in virtually every piping installation. From carbon steel flanges in refineries to stainless steel flanges in food processing plants, from weld neck flanges on offshore platforms to slip on flanges in building services, flanges suppliers in UAE serve diverse industries with specialized requirements.

The best flanges suppliers in UAE maintain comprehensive inventory across flange types (weld neck, slip on, blind, threaded, socket weld), materials (carbon steel, stainless steel, alloy steel, exotic materials), pressure ratings (Class 150 to Class 2500), and standards (ANSI/ASME, EN/DIN, BS, GOST). Whether you're searching for "flanges suppliers near me" in Jebel Ali, need ASME B16.5 flanges in Abu Dhabi, or require exotic alloy flanges in Sharjah, this guide connects you with verified suppliers across the UAE.

Major Flanges Suppliers in Dubai - Jebel Ali, Ras Al Khor & Industrial Areas

Dubai hosts the UAE's largest concentration of flanges suppliers, particularly around Jebel Ali Free Zone (serving oil and gas sectors), Ras Al Khor (industrial manufacturing), and Al Quoz (industrial trading). Here are verified flanges suppliers operating across Dubai:

Meraki Star Metals Oil & Gas Equipment Trading L.L.C - Flanges Supplier in Jebel Ali

Phone: 052-3973687 | Location: Jebel Ali, Dubai

Meraki Star Metals Oil & Gas Equipment Trading L.L.C is a Jebel Ali-based supplier specializing in oil and gas equipment including comprehensive ranges of pipe flanges, carbon steel flanges, stainless steel flanges, and alloy flanges. Their Jebel Ali location positions them at the heart of UAE's oil and gas supply chain, serving upstream, midstream, and downstream operations across the region.

Meraki Star supplies weld neck flanges, slip on flanges, blind flanges, threaded flanges, and specialty flanges in materials ranging from standard carbon steel to exotic alloys like Inconel, Monel, and Hastelloy. Their expertise in oil and gas specifications ensures compliance with stringent industry standards including ASME B16.5, B16.47, API 6A, and MSS SP-44.

Q: Why are so many flanges suppliers concentrated in Jebel Ali, Dubai?
Jebel Ali Free Zone is the Middle East's premier industrial and logistics hub, particularly for oil and gas equipment. The concentration of flanges suppliers, pipe fittings suppliers, valve distributors, and oilfield equipment companies in Jebel Ali creates a complete supply chain ecosystem. Oil and gas companies benefit from sourcing multiple components from one location, competitive pricing from market density, access to bonded warehouses for duty-free import/export, and proximity to Jebel Ali Port for international shipping. For flanges suppliers, Jebel Ali provides access to the entire Middle East oil and gas market from one strategic location.

Stellanox Steel Trading LLC - Stainless Steel Flanges in Karama, Dubai

Phone: 052-5254169 | Location: Karama, Dubai

Stellanox Steel Trading LLC is a Karama-based specialist in stainless steel products including stainless steel flanges across all types and pressure classes. Stainless steel flanges are essential for corrosive environments, food and pharmaceutical processing, high-purity applications, and UAE's coastal and marine installations where carbon steel would rapidly corrode.

Stellanox stocks stainless steel flanges in grades 304/304L, 316/316L, 321, 347, and duplex/super-duplex stainless steels. Their Karama location provides convenient access for Dubai contractors and fabricators requiring stainless steel flanges for HVAC, water treatment, food processing, and marine applications.

Q: What is the difference between 304 and 316 stainless steel flanges, and which should I use in UAE?
304 stainless steel flanges offer good corrosion resistance for general industrial and architectural applications. 316 stainless steel flanges contain molybdenum, providing superior corrosion resistance against chlorides, making them essential for marine environments, coastal installations, and chemical processing. In UAE's coastal climate (Dubai, Abu Dhabi, Sharjah all have significant coastal exposure), 316 stainless steel flanges are strongly recommended for outdoor installations and anywhere exposed to salt air. The cost premium (typically 20–30% over 304) is justified by significantly extended lifespan - 304 flanges can show corrosion within months near the coast, while 316 lasts decades.

Rubaiya Zueaid Building Materials Company LLC - Flanges Supplier in Deira

Phone: 04-2216819 | Location: Deira, Dubai

Rubaiya Zueaid Building Materials Company LLC operates from Deira, Dubai's traditional trading hub, supplying flanges and fittings alongside general building materials. Their diverse product range makes them a convenient single-source supplier for construction contractors requiring both structural materials and mechanical components like pipe flanges for building services installations.

Champions Technical Supplies Trading FZE - Flanges in Jebel Ali Free Zone

Phone: 054-9946277 | Location: Jebel Ali, Dubai

Champions Technical Supplies Trading FZE is a Jebel Ali Free Zone-based supplier of technical equipment including pipe flanges, flanges and fittings, valves, and industrial equipment. Free zone status provides logistical advantages for serving both UAE domestic markets and regional export clients. Champions supplies carbon steel flanges, stainless steel flanges, and alloy flanges to industrial, oil and gas, and construction sectors.

Fitting World Trading LLC - Flanges and Fittings Specialist in Ras Al Khor

Phone: 054-7014546 | Location: Ras Al Khor, Dubai

Fitting World Trading LLC is a Ras Al Khor-based specialist in flanges and fittings for industrial piping systems. Ras Al Khor's industrial area hosts fabrication shops, mechanical contractors, and industrial workshops that regularly require flanges, pipe fittings, and piping materials. Fitting World's specialization in flanges and fittings typically translates to deeper inventory, better technical knowledge, and competitive pricing compared to general industrial suppliers.

Q: What does "flanges and fittings" mean, and why are they often sold together?
"Flanges and fittings" refers to the complete range of components needed to build piping systems. Flanges provide connection points, while fittings (elbows, tees, reducers, couplings) provide directional changes and branch connections. They're sold together because piping systems require both - you can't build a complete system with just flanges or just fittings. Suppliers specializing in "flanges and fittings" stock the full range needed for piping projects, making them one-stop sources for mechanical contractors and fabricators.

Fluid Force Machinery & Spare Parts Trading LLC - Industrial Flanges in Al Quoz

Phone: 050-6537510 | Location: Al Quoz, Dubai

Fluid Force Machinery & Spare Parts Trading LLC operates from Al Quoz, Dubai's established industrial district. Their scope covers machinery spares and industrial components including pipe flanges for industrial machinery, hydraulic systems, and process equipment. Al Quoz's concentration of workshops, service companies, and industrial suppliers makes it a convenient sourcing location for Dubai's manufacturing and maintenance sectors.

Radius Star Piping LLC - Piping Components and Flanges in Qusais

Phone: 050-2866782 | Location: Qusais, Dubai

Radius Star Piping LLC is based in Qusais, Dubai, specializing in piping components including weld neck flanges, slip on flanges, blind flanges, and complete piping materials. Their focus on piping systems means they understand the technical requirements of different flange types, pressure ratings, and material specifications for various applications.

Al Moosawi Trading LLC - Flanges Supplier in Dubai Industrial City

Phone: 04-5587717 | Location: Dubai Industrial City, Dubai

Al Moosawi Trading LLC operates from Dubai Industrial City, one of Dubai's purpose-built industrial zones. They supply flanges, fittings, pipes, and industrial equipment to manufacturing, construction, and industrial clients across Dubai and the Northern Emirates.

MSG Oilfield Equipment Trading LLC - Oilfield Flanges in Dubai Industrial City

Phone: 055-8567030 | Location: Dubai Industrial City Phase-1, Dubai

MSG Oilfield Equipment Trading LLC is a Dubai Industrial City-based supplier specializing in oilfield equipment including API-specification flanges for oil and gas applications. Oilfield flanges often require specialized materials, exotic alloy options, and compliance with API 6A (wellhead and Christmas tree equipment) specifications beyond standard ANSI flanges.

Flanges Suppliers in Abu Dhabi - Mussafah Industrial Area

Abu Dhabi's flanges market is dominated by Mussafah, the emirate's massive industrial area housing oil and gas services, manufacturing, and industrial fabrication companies serving ADNOC and the broader UAE energy sector.

AADTRA (Atiq Al Dhaheri and Company) - Industrial Flanges in Mussafah

Phone: 052-9890101 | Location: Mussafah Industrial Area, Abu Dhabi

AADTRA (Atiq Al Dhaheri and Company) is an established Mussafah-based supplier of industrial equipment and materials including comprehensive ranges of carbon steel flanges, stainless steel flanges, and alloy flanges. Mussafah's position as Abu Dhabi's industrial heartland and ADNOC supply base makes it essential territory for flanges suppliers serving the UAE oil and gas sector.

Q: Do flanges for ADNOC projects require special certifications or approvals?
Yes - ADNOC (Abu Dhabi National Oil Company) projects typically require flanges to meet ADNOC specifications, which reference international standards (ASME, API) but add specific material traceability, testing, and documentation requirements. Flanges suppliers serving ADNOC projects must provide full material test reports (MTRs), heat certificates, non-destructive testing (NDT) reports where specified, and compliance with ADNOC's approved manufacturer lists for critical items. Not all flanges suppliers can meet these requirements - verify ADNOC supply capability before assuming a supplier can serve these projects.

Star Technofit Trading LLC - Flanges and Fittings in Mussafah

Phone: 050-8112947 | Location: Mussafah, Abu Dhabi

Star Technofit Trading LLC is a Mussafah-based supplier specializing in flanges and fittings for industrial and oil and gas applications. Their focus on flanges and fittings ensures technical expertise and comprehensive inventory across flange types, sizes, and specifications required by Abu Dhabi's industrial sectors.

United Pipes and Tubes Trading LLC - Pipes, Tubes, and Flanges in Mussafah

Phone: 054-2328597 | Location: Mussafah, Abu Dhabi

United Pipes and Tubes Trading LLC supplies pipes, tubes, and flanges as integrated piping system components. This combined offering is valuable for contractors and fabricators who can source their complete piping materials from one supplier, ensuring compatible specifications and streamlined procurement.

Flanges Supplier in Sharjah - Industrial and Manufacturing Focus

Sharjah's flanges suppliers serve the emirate's extensive industrial manufacturing sector, typically offering competitive pricing compared to Dubai equivalents while maintaining proximity to Dubai and Northern Emirates markets.

Apex Trading Co LLC - Flanges Supplier in Sharjah Industrial Area

Phone: 055-9023351 | Location: Industrial Area 13, Sharjah

Apex Trading Co LLC operates from Sharjah's Industrial Area 13, one of the emirate's many industrial zones. They supply flanges, fittings, pipes, and industrial materials to Sharjah's manufacturing, fabrication, and construction sectors. Sharjah's lower operating costs typically translate to 10–15% lower pricing on standard flanges compared to Dubai-based suppliers.

Q: Should I buy flanges from Sharjah or Dubai if my project is in Dubai?
For small quantities or urgent requirements, sourcing from Dubai-based flanges suppliers makes sense despite slightly higher prices. For planned purchases of standard flanges (carbon steel, common sizes, Class 150/300), Sharjah suppliers like Apex Trading offer 10–15% savings even after factoring transport to Dubai. For exotic materials, high-specification, or API-grade flanges, Dubai and Jebel Ali suppliers typically have better inventory and expertise. Many contractors maintain relationships with both Dubai suppliers (urgent, specialty) and Sharjah suppliers (bulk, standard).

Types of Pipe Flanges - Complete Classification Guide

Weld Neck Flange - The High-Pressure Standard

Weld neck flanges (also called welding neck flanges or WN flanges) have a long tapered hub that is welded to the pipe. The gradual transition from flange thickness to pipe wall thickness provides excellent stress distribution, making weld neck flanges the preferred choice for high-pressure, high-temperature, and critical service applications.

Weld neck flanges are required for most oil and gas applications, pressure ratings above Class 300, applications with cyclic temperature or pressure variations, and critical services where failure consequences are severe. They're available in all pressure classes (150 to 2500), all materials (carbon steel, stainless steel, alloy), and sizes from 1/2" to 60" and larger.

Slip On Flange - Cost-Effective General Purpose

Slip on flanges (SO flanges) slip over the pipe and are welded both inside and outside to provide reasonable strength at lower cost than weld neck flanges. The pipe slips inside the flange bore, and fillet welds attach the flange to the pipe on both front and back faces.

Slip on flanges are suitable for low-pressure, low-temperature, non-critical services, building HVAC and plumbing systems, and applications where ease of alignment is important. They're less expensive than weld neck flanges and easier to align during installation, but not suitable for high-pressure or critical applications.

Blind Flange - Closing Piping Systems

Blind flanges are solid flanges with no bore, used to close the end of a piping system, seal a nozzle on a vessel or equipment, or provide access for future connections. Blind flanges are bolted to a conventional flange (weld neck, slip on, or threaded) to create a leak-tight seal.

Common applications include closing unused nozzles on tanks and vessels, providing access points for future expansion, isolating sections of piping for maintenance or testing, and terminating pipeline ends. Blind flanges are available in all pressure classes and materials to match the connecting flange.

Threaded Flange - No Welding Required

Threaded flanges (also called screwed flanges) have internal threads that screw onto threaded pipe, eliminating the need for welding. This makes them suitable for applications where welding is impractical, dangerous, or where the pipe material can't be welded.

Threaded flanges are used in low-pressure systems (typically Class 150 or 300 maximum), small diameter pipes (typically up to 4"), applications where fire risk prevents welding, and systems requiring easy disassembly. They're not suitable for high-pressure, high-temperature, or vibration-prone applications due to potential thread loosening.

Socket Weld Flange - Small Bore Applications

Socket weld flanges have a socket recess into which the pipe is inserted and then fillet welded around the outside. The internal socket provides a smooth bore with minimal pressure drop. Socket weld flanges are primarily used for small bore piping (typically 2" and smaller), high-pressure small diameter systems, and systems where smooth internal bore is important.

They provide stronger connections than threaded flanges while being easier to align than weld neck flanges in small sizes. Socket weld flanges are common in instrumentation piping, chemical injection systems, and sampling systems.

Lap Joint Flange and Stub End - Alignment Freedom

Lap joint flanges (also called loose flanges) work with stub ends (short pipe sections with integral collars). The stub end is welded to the pipe, and the loose lap joint flange slides over the stub end and rotates freely. This allows easy bolt hole alignment regardless of how the pipe was welded.

Lap joint flanges are ideal for systems requiring frequent disassembly, applications where bolt hole alignment is difficult, and installations using expensive materials (the stub end is made from the expensive corrosion-resistant material matching the pipe, while the loose flange can be carbon steel even if the pipe is stainless or alloy).

Reducing Flange - Size Changes

Reducing flanges (also called expander flanges) have different size bore and bolt circle on opposite faces, allowing direct connection between pipes of different diameters without separate reducer and flange. One face matches the smaller pipe, the other matches the larger pipe or equipment nozzle.

Reducing flanges save cost by eliminating a reducer fitting and one flange set, reduce overall piping length, and simplify fabrication in size-change locations.

Specialty Flanges - Application-Specific Designs

Vanstone flange - Similar to lap joint but with a different stub end design.

Companion flange - A generic term for any flange used as the mating flange to another flange type.

Swivel flange - Rotating design used in fluid transfer and offshore applications.

Orifice flange - Special flange pair with jack screws for installing/removing orifice plates in flow measurement applications.

Long weld neck flange - Extended neck version used where pipe passes through walls or where thermal expansion requires extra length.

Flange manufacturer specific designs - Some applications require proprietary flange designs from specific manufacturers to meet unique requirements.

Flange Materials - Carbon Steel, Stainless Steel & Alloys

Carbon Steel Flanges - The Industrial Standard

Carbon steel flanges are the most widely used type, offering good strength, weldability, and cost-effectiveness for the majority of industrial piping applications. Common specifications include:

ASTM A105 - Forged carbon steel flanges for ambient and higher temperature service. The standard specification for most carbon steel flanges.

ASTM A350 LF2 - Low-temperature carbon steel for applications down to -50°F (-45°C).

ASTM A694 - High-strength carbon steel for high-pressure transmission piping.

Carbon steel flanges are suitable for most oil and gas, water, steam, and general industrial applications where corrosion resistance isn't critical.

Stainless Steel Flanges - Corrosion Resistance

Stainless steel flanges provide excellent corrosion resistance for aggressive environments, food and pharmaceutical applications, and UAE's harsh coastal climate. Common specifications include:

ASTM A182 F304/F304L - General-purpose austenitic stainless steel. Good corrosion resistance for most environments.

ASTM A182 F316/F316L - Molybdenum-bearing grade with superior corrosion resistance, especially against chlorides. Essential for marine and coastal UAE applications.

ASTM A182 F321 - Stabilized grade resistant to intergranular corrosion after welding. Used in high-temperature applications.

ASTM A182 F51 (Duplex) - Combined strength and corrosion resistance, increasingly popular in oil and gas.

ASTM A182 F53/F55 (Super Duplex) - Extremely high corrosion resistance for offshore and sour service.

In UAE, 316/316L stainless steel flanges are strongly recommended for any outdoor or coastal installation due to the salt-laden air's rapid corrosion of lesser materials.

Alloy Steel and Exotic Material Flanges

High-temperature, high-pressure, and corrosive services require alloy steel and exotic material flanges:

ASTM A182 F5, F9, F11, F22 - Chrome-moly alloy steels for high-temperature service up to 1200°F (650°C).

ASTM A182 F91 - Advanced 9% chromium steel for ultra-high-temperature power generation.

Inconel 600/625/825 (ASTM B564) - Nickel-chromium alloys for extreme corrosion and high temperature.

Monel 400/K-500 (ASTM B564) - copper alloys resistant to seawater and acids.

Hastelloy C-276/C-22 (ASTM B564) - Nickel-molybdenum-chromium alloys for severely corrosive chemical service.

Titanium (ASTM B381) - Superior corrosion resistance for seawater, chloride, and acidic environments.

These exotic flanges are expensive but essential for specialized oil and gas, petrochemical, and desalination applications common in UAE.

Flange Pressure Ratings and Standards

Flanges are manufactured to standardized pressure-temperature ratings and dimensional standards:

ANSI/ASME B16.5 - The Global Standard

ASME B16.5 is the most widely used flange standard globally, covering flanges from 1/2" to 24" in pressure classes:

Class 150 - Low pressure, approximately 285 psi at ambient temperature

Class 300 - Medium pressure, approximately 740 psi at ambient

Class 600 - High pressure, approximately 1480 psi at ambient

Class 900 - 2220 psi at ambient

Class 1500 - 3705 psi at ambient

Class 2500 - 6170 psi at ambient

Pressure ratings decrease as temperature increases. The "class" doesn't directly equal pressure - it's a nominal designation requiring reference to pressure-temperature charts.

ASME B16.47 - Large Diameter Flanges

ASME B16.47 covers flanges from 26" to 60" in Class 75, 150, 300, 400, 600, and 900. Large diameter flanges are common in transmission pipelines, offshore platforms, and major process equipment.

API Standards - Oil and Gas Specific

API 6A - Wellhead and Christmas tree equipment, higher ratings than ANSI (2000 psi to 20,000 psi working pressure).

API 17D - Subsea wellhead and tree equipment.

API flanges require specialized testing and documentation beyond standard ANSI flanges.

Other Standards

EN 1092-1 (formerly DIN) - European standard, common in projects with European engineering.

BS 10 - British standard, less common now but still specified on older facilities.

GOST - Russian standard, seen in projects with Russian equipment or engineering.

When specifying flanges, always clearly state the standard, size, pressure class, facing type (raised face, flat face, ring type joint), and material specification.

Flange Accessories and Installation Components

Flange Gaskets and Sealing

Proper gasket selection is critical for leak-free flange joints. Common gasket materials include:

Spiral wound gaskets - Metal and filler wound in spiral for high-pressure, high-temperature service.

Compressed fiber - Non-asbestos fiber sheets for low-pressure, low-temperature.

Rubber (EPDM, Nitrile, Viton) - Elastomeric gaskets for water and chemical service.

PTFE/Teflon - Excellent chemical resistance but requires higher bolt loads.

Ring Type Joint (RTJ) - Metal-to-metal seal for extreme high-pressure applications.

Gasket selection must match the flange facing type and service conditions.

Flange Fasteners - Bolts and Nuts

Flange bolts and nuts must match flange material and service temperature. ASTM A193 B7 studs with A194 2H nuts are standard for high-temperature carbon steel flange service. ASTM A193 B8M (316 stainless) studs with A194 8M nuts for stainless steel flanges or corrosive environments.

Proper bolt tightening using specified torque sequences and values is critical for maintaining gasket compression and preventing leaks.

Flange Protectors and Flange Bearings

Flange protectors are plastic covers that protect flange faces during storage and transport, preventing damage to the sealing surfaces. Damaged flange faces cause leaks and require expensive machining to repair.

Flange bearings are bearing units with a cast housing and integral mounting flange, common in agricultural and industrial machinery where the bearing needs to bolt directly to a support frame.

Thread Sealants - Loctite 515 and Loctite 518

For threaded flanges and threaded connections, thread sealants prevent leaks. Loctite 515 is a gasket-eliminating anaerobic flange sealant for rigid flanges up to 0.5mm gap. Loctite 518 is a stronger variant for wider gaps and higher pressures. Both cure in the absence of air when trapped between metal flanges, creating a permanent seal.

These products are used on threaded flanges, rigid flange assemblies, and as alternatives to traditional gaskets in some low-pressure applications.

Specialty Flanges - Plumbing and HVAC Applications

Beyond industrial piping, flanges appear in building services:

PVC flange or pvc pipe flange - Plastic flanges for PVC piping in water supply and drainage. Available as 3 inch, 4 inch pvc flange, etc.

Shower flange or shower drain flange - The decorative and sealing flange around shower drain openings. The kerdi drain flange is specific to Schluter Kerdi waterproofing systems.

Shower arm flange or shower arm and flange - The decorative escutcheon covering the shower arm pipe penetration through the wall.

Urinal flange or urinal drain flange - Mounting flange for urinals to attach to drainage piping.

Radiator flange - Connection flange for radiators in heating systems.

Brass flange - Brass flanges for water supply, gas piping, or decorative applications.

Aluminum flanges - Lightweight flanges for non-pressure applications.

Copper flange - Used in copper piping systems, HVAC, and plumbing.

Cast iron flange - Heavy-duty flanges for water mains and drainage.

These building services flanges are typically available from plumbing suppliers rather than industrial flanges suppliers, though some suppliers stock both ranges.

Sourcing Flanges for UAE Projects - Key Considerations

Material Certification and Traceability

For oil and gas, petrochemical, and critical industrial projects, flanges must come with complete material test reports (MTRs), heat certificates tracing material back to the steel mill, chemical and mechanical test results, and third-party inspection certificates where specified. Not all flanges suppliers can provide this documentation - verify capability before purchasing for critical applications.

Lead Times - Stock vs. Made-to-Order

Common flanges (carbon steel, standard sizes, Class 150/300, raised face) are typically stocked by major suppliers with immediate availability. Exotic materials, non-standard sizes, higher pressure classes, and special facings often require 4–12 weeks manufacturing time. Plan procurement accordingly for project schedules.

Price Factors

Flange pricing varies dramatically based on material (carbon steel cheapest, exotic alloys 10–50x more expensive), size (price increases geometrically with diameter, not linearly), pressure class (higher classes require more material and machining), and quantities (bulk orders receive significant discounts).

For large projects, securing frame agreements with flanges suppliers can lock in pricing and ensure supply priority.

All UAE Flanges Suppliers at a Glance

Meraki Star Metals Oil & Gas Equipment Trading L.L.C
Jebel Ali, Dubai | 052-3973687
Oil and gas flanges specialist, carbon steel, stainless steel, alloy flanges.

Apex Trading Co LLC
Industrial Area 13, Sharjah | 055-9023351
Competitive Sharjah-based flanges and fittings supplier.

Stellanox Steel Trading LLC
Karama, Dubai | 052-5254169
Stainless steel flanges specialist in Dubai.

Rubaiya Zueaid Building Materials Company LLC
Deira, Dubai | 04-2216819
Flanges and building materials in Deira trading district.

AADTRA (Atiq Al Dhaheri and Company)
Mussafah, Abu Dhabi | 052-9890101
Industrial flanges supplier serving Abu Dhabi's oil and gas sector.

Champions Technical Supplies Trading FZE
Jebel Ali, Dubai | 054-9946277
Free zone flanges and technical supplies.

Fitting World Trading LLC
Ras Al Khor, Dubai | 054-7014546
Flanges and fittings specialist in Dubai industrial area.

Fluid Force Machinery & Spare Parts Trading LLC
Al Quoz, Dubai | 050-6537510
Industrial flanges and machinery spares.

Radius Star Piping LLC
Qusais, Dubai | 050-2866782
Piping components and flanges specialist.

Star Technofit Trading LLC
Mussafah, Abu Dhabi | 050-8112947
Flanges and fittings for Abu Dhabi industrial sector.

United Pipes and Tubes Trading LLC
Mussafah, Abu Dhabi | 054-2328597
Integrated pipes, tubes, and flanges supplier.

Al Moosawi Trading LLC
Dubai Industrial City | 04-5587717
Industrial flanges and equipment.

MSG Oilfield Equipment Trading LLC
Dubai Industrial City | 055-8567030
Oilfield-specification flanges for oil and gas.

Questions to Ask Flanges Suppliers Before Purchasing

Can you provide full material test reports (MTRs) and heat certificates?
Essential for critical applications and project specifications.

What is your stock availability for my required flange type, size, and material?
Understand lead times for planning.

Do you supply flanges to ADNOC, GASCO, or other UAE oil and gas operators?
Indicates capability for high-specification projects.

Can you source exotic materials and non-standard specifications?
Important for specialized applications.

What standards do your flanges conform to (ASME, API, EN, BS)?
Verify alignment with project specifications.

Do you offer hydrotest and NDT services or coordination?
Some projects require pressure testing and inspection.

What are your payment terms for large orders?
Negotiate terms for significant purchases.

Can you provide technical support for flange selection?
Valuable for complex projects.

The Bottom Line - Choosing Flanges Suppliers in UAE

Whether sourcing weld neck flanges for oil and gas projects, stainless steel flanges for coastal installations, blind flanges for equipment nozzles, or specialty alloy flanges for petrochemical applications, the thirteen flanges suppliers in this guide - from Meraki Star Metals and AADTRA to Stellanox and Fitting World - represent established suppliers of pipe flanges across Dubai, Abu Dhabi, and Sharjah.

For engineers, contractors, and procurement teams, working with experienced flanges suppliers ensures correct specifications, material compliance, and reliable supply for UAE's demanding industrial projects.

Verify certifications. Understand lead times. Specify completely. And choose suppliers with proven expertise in your industry sector.

UAE's oil and gas and industrial sectors demand quality flanges. Choose suppliers who deliver them.

Featured Companies
Deep Sea Pipes & Fittings Trading LLCDeep Sea Pipes & Fittings Trading LLCLeading supplier of Pipes and Pipe fittings, valves, Rubber Sheets, Tubes & Tube Fittings, Gaskets
Mobile : +97142272121
Email: [email protected]

Al Ruwais Metal and Steel Factory LLCAl Ruwais Metal and Steel Factory LLCWe, at Ruwais Steel are a leading high-capacity mill of products like MS ANGLES, C CHANNELS, I BEAMS, STRUCTURAL STEEL, CABLE TRAYS, CABLE MANAGEMENT SYSTEMS and LINTELS Contact: 056-5221216 E-Mail : [email protected]

Dana Steel Industry LLCDana Steel Industry LLC

DANA Group is UAE Head Quartered Industrial Conglomerate, Our industrial divisions are :- 

1)DANA Steel- Steel Coils Manufacturing -GI/AZ/PPGI/PPAZ/PPAL | Roofing Sheets , Sandwich Panels , Fencing , Steel Drums and Barrels, Galvanized GI Pipes, Dry Wall Partitioning Systems Stud, Tracks, Furring Channel
2)DANA HVAC Solutions - Domestic & Industrial Water Chillers , Drinking Water Coolers, Cold Room Solutions, Heat Pumps
3)DANA Oil & Petrochemicals - Lubricants , Greases , Base Oil & Petrochemicals

For more details:
whatsapp: 04-2217273