Quan Flanges and Plates is a well-respected manufacturer and supplier based in Da Nang, Vietnam, focusing on high-performance ANSI B16.5 Class 2500 Flanges. These flanges are specifically engineered for extremely high-pressure and high-temperature piping systems, ensuring top-notch safety, strength, and leak-proof performance. Crafted with cutting-edge technology and premium raw materials, Class 2500 flanges are known for their durability and precise dimensions. Quan Flanges and Plates caters to essential industries like oil and gas, petrochemical, power generation, marine, and water treatment, providing reliable flange solutions that meet international standards and promote long-lasting operational efficiency.
The ANSI B16.5 Class 2500 Flanges are made from high-quality carbon steel, stainless steel, and alloy steel, designed to endure extreme operating conditions. Their composition features chromium, nickel, molybdenum, manganese, and silicon, which contribute to their exceptional strength, hardness, and resistance to corrosion. These flanges exhibit remarkable tensile and yield strength, high hardness, and reliable elongation properties. Tailored for ultra-high pressure applications, they guarantee leak-proof sealing, dimensional stability, and excellent wear resistance. With their robust mechanical properties and outstanding durability, Class 2500 flanges ensure dependable performance in the most demanding and safety-critical piping systems.
Quan Flanges, a leading supplier in Da Nang, Vietnam, offers an extensive selection of ANSI B16.5 Class 2500 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 |
|---|---|
| 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 2500 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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| Normal pipe size | Outside dia. of flange | Minimum thickness of flange | Overall Length | Bolt Circle | No. and Size of Holes | O.D. of raised face | |||
| Welding neck | Slip-on & socket welding | Lap Joint | |||||||
| O | Q | Y | Diam. | No. | dia. | R | |||
| 1/2 | 12.1 | 22.3 | 60.3 | 31.8 | 31.8 | 82.5 | 4 | 22 | 35 |
| 3/4 | 130 | 25.4 | 69.8 | 34.9 | 34.9 | 89.0 | 4 | 22 | 43 |
| 1 | 149 | 28.6 | 73.0 | 41.3 | 41.3 | 101.5 | 4 | 25 | 51 |
| 1-1/4 | 159 | 28.6 | 73.0 | 41.3 | 41.3 | 111.0 | 4 | 25 | 64 |
| 1-1/2 | 178 | 31.8 | 82.6 | 44.4 | 44.4 | 124.0 | 4 | 29 | 73 |
| 2 | 216 | 38.1 | 101.6 | 57.2 | 57.2 | 165.0 | 8 | 25 | 92 |
| 2-1/2 | 244 | 41.3 | 104.8 | 63.5 | 63.5 | 190.5 | 8 | 29 | 105 |
| 3 | 267 | 47.7 | 117.5 | 73.0 | 73.0 | 203.0 | 8 | 32 | 127 |
| 3-1/2 | |||||||||
| 4 | 311 | 54.0 | 123.8 | 90.5 | 90.5 | 241.5 | 8 | 35 | 157 |
| 5 | 375 | 73.1 | 155.5 | 104.8 | 104.8 | 292.0 | 8 | 41 | 186 |
| 6 | 394 | 82.6 | 171.4 | 119.1 | 119.1 | 317.5 | 12 | 38 | 216 |
| 8 | 483 | 92.1 | 212.7 | 142.9 | 142.9 | 393.5 | 12 | 45 | 270 |
| 10 | 584 | 108.0 | 254.0 | 158.8 | 177.8 | 482.5 | 12 | 51 | 324 |
| 12 | 673 | 123.9 | 282.9 | 181.0 | 219.1 | 571.5 | 16 | 54 | 381 |
| 14 | 749 | 133.4 | 298.4 | —– | 241.3 | 635.0 | 16 | 60 | 413 |
| 16 | 826 | 146.1 | 311.2 | —– | 260.4 | 705.0 | 16 | 51 | 470 |
| 18 | 914 | 162.0 | 327.0 | —— | 276.2 | 474.5 | 16 | 73 | 538 |
| 20 | 984 | 117.8 | 355.4 | —– | 292.1 | 832.0 | 16 | 80 | 584 |
| 24 | 1168 | 203.2 | 406.4 | —– | 330.2 | 990.5 | 16 | 92 | 692 |
You’ll find ANSI B16.5 Class 2500 Flanges widely used in industries that require ultra-high pressure and temperature performance. They play a crucial role in oil and gas exploration, refineries, petrochemical plants, offshore drilling platforms, power generation units, and marine engineering. These flanges are perfect for pipelines that transport steam, gas, oil, and hazardous fluids under extreme pressure. Their corrosion resistance and toughness make them ideal for harsh and offshore environments. Additionally, Class 2500 flanges are utilized in water treatment facilities and fire protection systems, ensuring safety and reliability across various applications.
Yes, we offer custom sizes for ANSI B16.5 Class 2500 Flanges to meet specific project needs. Our team at Quan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@quanflanges.com.
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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