Uday Flanges is a trusted manufacturer and supplier of DIN 2503 PN25 slip-on flanges based inDubai, UAE. They specialize in precision-engineered flange solutions that adhere to German industrial standards. These DIN 2503 PN25 flanges are designed for piping systems that handle moderate to high pressure, reaching up to 25 bar (362 psi). They fit over the pipe and are welded in place, ensuring a secure and leak-proof connection. Uday Flanges offers these components in carbon steel, stainless steel, and alloy steel, catering to industries like oil & gas, power generation, chemical processing, and water treatment.
Typically, DIN 2503 PN25 slip-on flanges are made from materials such as S235JR and P265GH (carbon steel), along with stainless steel grades like 304 and 316. They are recognized for their excellent weldability, mechanical strength, and resistance to corrosion. The mechanical properties include tensile strength ranging from 360 to 600 MPa and yield strength between 235 to 355 MPa, depending on the material used. With their flat face and wide contact surface, these flanges ensure stable and secure sealing with gaskets.
Uday Flanges, a leading supplier in Dubai, UAE, offers an extensive selection of DIN 2503 PN25 Slip On 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 Chart | 1/2″ (15 NB) To 48″ (1200NB) |
| Coating Flanges Faces | Zinc Plated, Oil Black Paint, Yellow Transparent, Cold and Hot Dip Galvanized, Anti-rust Paint |
| Design For Size | DIN, EN, ASA, PN, JIS, BS, ANSI, ASME |
| Pressure Rating Table | Class 150 LBS, Class 300 LBS, Class 600 LBS, Class 900 LBS, Class 1500 LBS, Class 2500 LBS |
| Supporting Flanges Material | Flanges Bolts, Gasket, Ring Joint |
| Connect Type Type | FF, RTJ, SMF, LMF, RF, LJF |
| Production Process | Forged, Heat Treated and Machined |
| Standard | ASME B16.38 Flange, DIN Flange, ISO Flange, JIS Flange, PN Flange, MSS SP44 Flange, EN-1092 Flange, BS10 Flange, ASME B16.47 (Series A, Series B) Flange, UNI Flange, ASME B16.5 Flange, AWWA Flange, DIN Flange, GOST Flange |
| Machining Equipment | Bending machine, Sand-blasting machine, Press machine, Pushing Machine, Electric bevelling machine etc |
| Nominal Pipe Size | Diameter of | Flange Dia | Flange I.D | Thk of Flanges | Dia of Bolt Cirlce | No. of | Dia of Bolt Holes | Weight |
|---|---|---|---|---|---|---|---|---|
| DN | Pipe | D | D5 | B | K | holes | D2 | KG |
| 10 | 17.20 | 90 | 17.70 | 14 | 60 | 4 | 14 | 0.60 |
| 15 | 21.30 | 95 | 22.00 | 14 | 65 | 4 | 14 | 0.67 |
| 20 | 26.90 | 105 | 27.60 | 16 | 75 | 4 | 14 | 0.94 |
| 25 | 33.70 | 115 | 34.40 | 16 | 85 | 4 | 14 | 1.11 |
| 32 | 42.40 | 140 | 43.10 | 16 | 100 | 4 | 18 | 1.62 |
| 40 | 48.30 | 150 | 49.00 | 16 | 110 | 4 | 18 | 1.85 |
| 50 | 60.30 | 165 | 61.10 | 18 | 125 | 4 | 18 | 2.46 |
| 65 | 76.10 | 185 | 77.10 | 18 | 145 | 4 | 18 | 2.99 |
| 80 | 88.90 | 200 | 90.30 | 20 | 160 | 8 | 18 | 3.61 |
| 100 | 114.30 | 220 | 115.90 | 20 | 180 | 8 | 18 | 3.99 |
| 125 | 139.70 | 250 | 141.60 | 22 | 210 | 8 | 18 | 5.41 |
| 150 | 168.30 | 285 | 170.50 | 22 | 240 | 8 | 22 | 6.55 |
| 175 | 193.70 | 315 | 196.10 | 24 | 270 | 8 | 22 | 8.42 |
| 200 | 219.10 | 340 | 221.80 | 24 | 295 | 12 | 22 | 8.97 |
| 250 | 273.00 | 405 | 276.20 | 26 | 355 | 12 | 26 | 12.76 |
| 300 | 323.90 | 460 | 327.60 | 28 | 410 | 12 | 26 | 16.60 |
| 350 | 355.60 | 520 | 359.70 | 30 | 470 | 16 | 26 | 24.08 |
| 400 | 406.40 | 580 | 411.00 | 32 | 525 | 16 | 30 | 30.20 |
| 450 | 457.00 | 640 | 462.30 | 38 | 585 | 20 | 30 | 41.67 |
| 500 | 508.00 | 715 | 513.60 | 38 | 650 | 20 | 33 | 52.87 |
| NPS NPS (inch) | |||||
|---|---|---|---|---|---|
| Diammeter of Flange (inch) | No. of Bolts | Diammeter of Bolts (inch) | Diammeter of Bolt Holes (inch) | Bolt Circle (inch) | |
| 1/4 | 3-3/8 | 4 | 1/2 | 0.62 | 2-1/4 |
| 1/2 | 3-1/2 | 4 | 1/2 | 0.62 | 2-3/8 |
| 3/4 | 3-7/8 | 4 | 1/2 | 0.62 | 2-3/4 |
| 1 | 4-1/4 | 4 | 1/2 | 0.62 | 3-1/8 |
| 1-1/4 | 4-5/8 | 4 | 1/2 | 0.62 | 3-1/2 |
| 1-1/2 | 5 | 4 | 1/2 | 0.62 | 3-7/8 |
| 2 | 6 | 4 | 5/8 | 0.75 | 4-3/4 |
| 2-1/2 | 7 | 4 | 5/8 | 0.75 | 5-1/2 |
| 3 | 7-1/2 | 4 | 5/8 | 0.75 | 6 |
| 3-1/2 | 8-1/2 | 8 | 5/8 | 0.75 | 7 |
| 4 | 9 | 8 | 5/8 | 0.75 | 7-1/2 |
| 5 | 10 | 8 | 3/4 | 0.88 | 8-1/2 |
| 6 | 11 | 8 | 3/4 | 0.88 | 9-1/2 |
| 8 | 13-1/2 | 8 | 3/4 | 0.88 | 11-3/4 |
| 10 | 16 | 12 | 7/8 | 1 | 14-1/4 |
| 12 | 19 | 12 | 7/8 | 1 | 17 |
| 14 | 21 | 12 | 1 | 1.12 | 18-3/4 |
| 16 | 23-1/2 | 16 | 1 | 1.12 | 21-1/4 |
| 18 | 25 | 16 | 1-1/8 | 1.25 | 22-3/4 |
| 20 | 27-1/2 | 20 | 1-1/8 | 1.25 | 25 |
You’ll often find DIN 2503 PN25 slip-on flanges in systems that transport water, gas, steam, and chemical fluids under moderate to high pressure. They’re perfect for pipelines in power plants, pressure vessels, HVAC systems, chemical plants, and various mechanical installations. Their straightforward installation, cost-effectiveness, and robust structural strength make them a go-to choice for projects that require quick assembly and reliable performance. These flanges create a strong, tight joint while allowing for some flexibility in alignment during the welding process.
Yes, we offer custom sizes for DIN 2503 PN25 Slip On 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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