Uday Flanges has built a solid reputation as a reliable manufacturer and supplier of ANSI B16.5 Class 400 Flanges right inDubai, UAE. They provide top-notch flange solutions for various industries, including oil & gas, petrochemicals, power generation, and marine engineering. Crafted to meet the ANSI/ASME B16.5 standard, these flanges cater to nominal pipe sizes ranging from ½ inch to 24 inches and are designed to perform consistently under high pressure and temperature conditions. With a strong focus on precision, safety, and durability, Uday Flanges guarantees that every Class 400 flange upholds the highest standards for structural integrity and leak-proof performance.
Typically, ANSI B16.5 Class 400 Flanges are forged from materials like carbon steel, stainless steel, alloy steel, or duplex steel, depending on the specific service requirements. These flanges can handle pressures of around 990 psi at 100°F (for carbon steel), making them a robust choice for demanding systems. You can find various types, including weld neck, slip-on, blind, threaded, socket weld, and lap joint flanges. They boast impressive mechanical properties, such as high tensile strength, excellent resistance to pressure and temperature changes, and good corrosion resistance. Plus, they come with raised face (RF) or ring-type joint (RTJ) sealing surfaces to enhance sealing efficiency.
Uday Flanges, a leading supplier in Dubai, UAE, offers an extensive selection of ANSI B16.5 Class 400 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
| Size Range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
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| Standards | B16.47 Series A & B, ANSI/ASME B16.5, BS4504, B16.48, EN-1092, BS 10, DIN, ANSI Flanges, BS Flanges, ASME Flanges, EN Flanges, DIN Flanges, GOST Flanges. |
| DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Main Types | Threaded / Forged / Plate /Screwed |
| Flange supporting material | Ring Joint, Gasket, Flange Bolts |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Most Common Types |
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| Production technique |
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| Connect Type/ Flange Face Type | Ring Type Joint (RTJ), Raised Face (RF),Large Male-Female (LMF), Flat Face (FF),Small Male-Female (SMF), Lap-Joint Face (LJF), Large Tongue & Groove, Small Tongue, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations Class 400 Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Specialized Manufacturer of |
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| Standard | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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| CLASS | Nominal Pipe Size | Slip On | Threaded | Socket Weld | Lap Joint | Blind | Weld Neck |
| 400 lb | ½ | 1 | 1 | 2 | 1 | 2 | 2 |
| ¾ | 2 | 2 | 2 | 2 | 2 | 2 | |
| 1 | 2 | 2 | 2 | 2 | 2 | 3 | |
| 1¼ | 3 | 3 | 3 | 3 | 3 | 3 | |
| 1½ | 3 | 3 | 3 | 3 | 4 | 4 | |
| 2 | 5 | 5 | 5 | 5 | 5 | 6 | |
| 2½ | 8 | 8 | 8 | 8 | 7 | 10 | |
| 3 | 9 | 9 | 9 | 9 | 9 | 11.5 | |
| 3½ | 11 | 12 | 11 | 11 | 13 | 12 | |
| 4 | 13 | 13 | 13 | 13 | 17 | 16.5 | |
| 5 | 15 | 15 | 15 | 15 | 20 | 21 | |
| 6 | 19 | 19 | 19 | 19 | 27 | 26 | |
| 8 | 30 | 30 | 30 | 30 | 47 | 42 | |
| 10 | 43 | 43 | 43 | 43 | 70 | 54 | |
| 12 | 64 | 64 | 64 | 64 | 123 | 88 | |
| 14 | 90 | 90 | 90 | 105 | 140 | 114 | |
| 16 | 106 | 98 | 98 | 140 | 180 | 140 | |
| 18 | 130 | 130 | 130 | 160 | 220 | 165 | |
| 20 | 165 | 165 | 165 | 195 | 285 | 197 | |
| 22 | 185 | 185 | 185 | 245 | 355 | 225 | |
| 24 | 220 | 220 | 220 | 275 | 430 | 268 |
You’ll often see ANSI B16.5 Class 400 Flanges in moderate to high-pressure piping systems where strength and reliability are crucial. They’re commonly used in steam lines, pressure vessels, compressor outlets, pump systems, and heat exchangers across refineries, power plants, offshore platforms, and chemical plants. These flanges provide tight, vibration-resistant connections and are engineered to withstand the mechanical and thermal stresses of dynamic operating environments. Their well-balanced design makes them a trustworthy solution where performance, safety, and compliance are paramount.
Yes, we offer custom sizes for ANSI B16.5 Class 400 Flanges to meet specific project needs. Our team at Uday Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@udayflanges.ae.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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