Leading Manufacturer & Exporter of Slip On Flanges to UAE
Werner Flanges stands as the premier supplier of high-quality Slip On Flanges to the United Arab Emirates, serving critical industries across Dubai, Abu Dhabi, Sharjah, and beyond. With over two decades of manufacturing excellence, we deliver ASME B16.5 compliant slip on flanges engineered for demanding applications in the UAE's thriving oil & gas, petrochemical, desalination, and construction sectors.
Our slip on flanges are manufactured using premium-grade materials including Carbon Steel (ASTM A105), Stainless Steel (304, 304L, 316, 316L), Alloy Steel (F11, F22, F91), and Duplex grades, available in all pressure classes from 150# to 2500# and sizes ranging from ½” to 60″. Every flange undergoes rigorous quality testing and third-party inspection to meet international standards including ASME, ASTM, API, and NACE specifications.
The UAE’s strategic position as a global energy hub and its ambitious infrastructure development projects demand reliable piping components that can withstand extreme temperatures, corrosive environments, and high-pressure conditions. Our slip on flanges serve major projects across ADNOC facilities, DEWA power plants, DUBAL aluminum smelters, and numerous petrochemical complexes in Ruwais and Jebel Ali. We maintain competitive pricing as direct manufacturers while ensuring fast delivery through our established logistics network to Jebel Ali Port, Port Rashid, and Khalifa Port, with typical sea freight delivery times of 18-22 days and expedited air freight options available for urgent requirements.
Whether you're sourcing flanges for offshore platforms, desalination plants, district cooling systems, or refinery expansions, Werner Flanges provides complete material traceability, comprehensive documentation packages, and dedicated technical support to ensure your projects meet the highest standards of quality and safety.
Offshore & Refinery Flanges | Full Material Traceability | Comprehensive Documentation | Quality & Safety Assured Supply
Specifications
| Specification | Details |
|---|---|
| Pressure Rating | Class 150 to Class 2500 |
| Flange Type | Plate Flange |
| Facing Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Size Range | ½” to 24” (DN 15 to DN 600) |
| Temperature Range | -29°C to +593°C (Depending on Material & Pressure Class) |
| Applications | Oil & Gas, Petrochemical, Power Generation, Water Treatment, Marine & Industrial Sectors |
| Manufacturing Process | Forged / Machined |
| Certification | EN 10204 3.1 / 3.2, IBR, NACE MR0175 / ISO 15156 (as applicable) |
Matel and Grade
| Type of Materials | Common Specifications / Customization Available on Request |
|---|---|
| Duplex Steel | ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205 |
| Super Duplex Steel | ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo) |
| Stainless Steel | ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347 |
| Carbon Steel | ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II |
| Alloy Steel | ASTM/ASME A182 F1, F5, F9, F11, F12, F22 |
| Non-Ferrous Alloys | Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy |
| Titanium | ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16 |
| Copper Nickel | ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30) |
| Brass, Al-Brass | ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass |
| Nickel Alloys | ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500 |
| Alloy 20 | ASTM B462 UNS N08020 |
| Hastelloy | ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22) |
| Cladded Materials | ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals |
| Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations |
Types of Flanges
| Stainless Steel Slip On Flanges | Carbon Steel Slip On Flanges | ANSI B16.5 Slip On Flanges | Raised Face Slip On Flanges | Flat Face Slip On Flanges |
| RTJ Slip On Flanges | Forged Slip On Flanges | High Pressure Slip On Flanges | Industrial Slip On Flanges | Custom Slip On Flanges |
Industries and Applications We Supply
| Industry | Applications |
|---|---|
Oil & Gas Industry |
As a leading slip on flanges supplier in the UAE, we supply carbon steel, stainless steel, and alloy steel slip on flanges for upstream, midstream, and downstream oil & gas projects. These flanges are widely used in gathering systems, well testing lines, produced water pipelines, and low-to-medium pressure hydrocarbon services. UAE offshore and onshore facilities including ADNOC operations use Class 150#, 300#, and 600# slip on flanges in water injection systems, fire water networks, and utility pipelines where cost-effectiveness and easy alignment are important. Refineries in Ruwais and other industrial zones utilize slip on flanges in process piping, storage tank farms, and blending units where reliable bolted connections are required for safe and continuous operations. |
Petrochemical & Chemical Processing |
Slip on flanges are extensively used in UAE petrochemical complexes for polymer production, ammonia plants, and chemical transfer systems. They provide secure connections in low and medium pressure service lines handling hydrocarbons and process chemicals. Stainless steel and alloy slip on flanges are supplied for corrosive media handling, while carbon steel grades such as ASTM A105 are commonly used for general process piping and utility services. |
Power Generation |
Power plants across Dubai, Abu Dhabi, and Sharjah use slip on flanges in feedwater lines, cooling water systems, condensate pipelines, and auxiliary steam circuits. These flanges are available in pressure classes from 150# to 1500# depending on system requirements. Slip on flanges are preferred in large piping networks where easy installation and alignment reduce fabrication time and maintenance costs. |
Water & Desalination Plants |
Desalination and water treatment plants in the UAE utilize slip on flanges in treated water distribution, pump connections, and utility pipelines. Carbon steel slip on flanges with protective coatings are commonly used for non-corrosive services. Stainless steel slip on flanges are supplied for seawater intake and brine handling systems where corrosion resistance is essential. |
Frequently Asked Questions (FAQs)
- what is the difference between slip on flanges and weld neck flanges?
-
slip on flanges have a low hub with a bore slightly larger than the pipe od, allowing the pipe to slip through before welding. they require two fillet welds (inside and outside). weld neck flanges have a long tapered hub and require a single full-penetration weld, offering superior strength for high-pressure and high-temperature applications.
for uae class 150# and 300# water service, hvac, and low-pressure process piping, slip on flanges are more economical and easier to install.
- how long does delivery take to uae locations?
-
standard sea freight to jebel ali or khalifa port takes approximately 18–22 days, plus 2–3 days for customs clearance. total delivery timeline is around 25–30 days for standard sizes and 35–45 days for custom production. air freight options are available for urgent requirements.
- do you provide nace mr0175 compliant slip on flanges?
-
yes, nace mr0175 / iso 15156 compliant slip on flanges are supplied for sour gas service in uae oil & gas fields. materials include controlled hardness a105, a350 lf2, stainless steel, and duplex grades with full certification and testing documentation.
- what material is suitable for uae desalination plants?
-
- seawater & brine: duplex f51 or super duplex f53/f55
- ro high pressure lines: stainless steel f316l or duplex
- treated water: f304l / f316l
- utility services: carbon steel a105 with coating
due to high salinity and warm gulf temperatures, duplex grades are preferred for long-term reliability.
- do you provide third-party inspection?
-
yes, third-party inspection is available through tuv, dnv, lloyd’s register, bureau veritas, sgs, and other international agencies. detailed inspection and test plans (itps) are prepared as per uae project requirements.
- what documentation is provided?
-
- en 10204 3.1 material test certificates
- chemical & mechanical test reports
- dimensional inspection reports (asme b16.5)
- pmi & ndt reports
- nace compliance certificates (if required)
- commercial invoice & certificate of origin
- can you manufacture custom slip on flanges?
-
yes, custom slip on flanges can be manufactured with special bore sizes, bolt patterns, facing types, and material combinations. engineering review and compliance verification are provided to meet uae project specifications.
GET A QUOTE
Contact Werner Flanges:
Email: sales@wernerflanges.com
