Harsh Flanges, located in the bustling city of Mumbai, India, has made a name for itself as a top-notch manufacturer and supplier of high-quality DIN 2503 PN25 Slip-On Flanges. These flanges are designed to easily slide over pipes and are welded on both the inside and outside, ensuring a robust and leak-proof connection. Made from materials like carbon steel, stainless steel, and alloy steel, they cater to a variety of industries that need dependable and cost-effective flange solutions. Harsh Flanges is committed to upholding international standards, guaranteeing that they deliver durable and precise products tailored to meet the unique needs of different applications.
Typically, DIN 2503 PN25 Slip-On Flanges are made from materials such as carbon steel (like ASTM A105), stainless steel (such as ASTM A182 F304/F316), and alloy steels (including ASTM A182 F11/F22). These materials strike a great balance between strength, ductility, and resistance to corrosion. The mechanical properties feature a yield strength of around 250–350 MPa and a tensile strength of 450–600 MPa, depending on the specific material grade. These flanges are built to handle pressures up to 25 bar (PN25) and can operate in temperatures ranging from -20°C to 120°C, with a note that strength may decrease at higher temperatures.
Harsh Flanges, a leading supplier in Mumbai, India, 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 |
DIN 2503 PN25 Slip-On Flanges find their place in various industries that require medium-pressure piping systems. You’ll see them in applications like water treatment plants, HVAC systems, pump suction lines, and general industrial piping. Their design makes alignment and welding a breeze, which is perfect for systems where easy installation and maintenance are key. These flanges are especially well-suited for systems that handle non-corrosive fluids at moderate temperatures and pressures.
Yes, we offer custom sizes for DIN 2503 PN25 Slip On Flanges to meet specific project needs. Our team at Harsh Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@harshflanges.co.in.
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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