From the industrial heart of Manama, Bahrain, Rizwan Flanges stands as a reliable partner for robust piping solutions, specializing in the DIN 2635 PN40 Weld Neck Flange. We understand that the integrity of your high-pressure systems depends on the quality of every component. That’s why our commitment is to provide flanges built with precision and durability, ensuring a secure and long-lasting connection for your most demanding projects, directly from our strategic location in the Gulf.
Crafted to meet stringent standards, these flanges are typically produced from carbon or stainless steel, ensuring excellent strength and corrosion resistance. The specific composition is chosen to deliver superior mechanical properties, including high tensile strength and excellent yield strength, which are essential for withstanding the substantial pressures of a PN40 rating. This robust construction guarantees that the flange will perform reliably under significant stress, maintaining a leak-proof seal in critical pipeline connections.
| 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 |
| Pipe | Flange | Neck | Raised face | Screws | Weight | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (7,85 Kg/dm3) | ||||||||||||||||
| Rated | d1 | D | b | k | h1 | d3 | s | r | h2 | d4 | f | Holes | Thread | d2 | Kg | |
| Diameter | ISO Series | DIN Series | ||||||||||||||
| 15 | – | 20 | 95 | 16 | 65 | 38 | 30 | 2 | 4 | 6 | 45 | 2 | 4 | M 12 | 14 | 0,746 |
| 21,3 | – | 32 | ||||||||||||||
| 20 | – | 25 | 105 | 18 | 75 | 40 | 38 | 2,3 | 4 | 6 | 58 | 2 | 4 | M 12 | 14 | 1,06 |
| 26,9 | – | 40 | ||||||||||||||
| 25 | – | 30 | 115 | 18 | 85 | 40 | 42 | 2,6 | 4 | 6 | 68 | 2 | 4 | M 12 | 14 | 1,29 |
| 33,7 | – | 45 | ||||||||||||||
| 32 | – | 38 | 140 | 18 | 100 | 42 | 52 | 2,6 | 6 | 6 | 78 | 2 | 4 | M 16 | 18 | 1,88 |
| 42,4 | – | 56 | ||||||||||||||
| 40 | – | 44,5 | 150 | 18 | 110 | 45 | 60 | 2,6 | 6 | 7 | 88 | 3 | 4 | M 16 | 18 | 2,33 |
| 48,3 | – | 64 | ||||||||||||||
| 50 | – | 57 | 165 | 20 | 125 | 48 | 72 | 2,9 | 6 | 8 | 102 | 3 | 4 | M 16 | 18 | 2,82 |
| 60,3 | – | 75 | ||||||||||||||
| 65 | 76,1 | – | 185 | 22 | 145 | 52 | 90 | 2,9 | 6 | 10 | 122 | 3 | 8 | M 16 | 18 | 3,74 |
| 80 | 88,9 | – | 200 | 24 | 160 | 58 | 105 | 3,2 | 8 | 12 | 138 | 3 | 8 | M 16 | 18 | 4,75 |
| 100 | – | 108 | 235 | 24 | 190 | 65 | 128 | 3,6 | 8 | 12 | 162 | 3 | 8 | M 20 | 22 | 6,52 |
| 114,3 | – | 134 | ||||||||||||||
| 125 | – | 133 | 270 | 26 | 220 | 68 | 155 | 4 | 8 | 12 | 188 | 3 | 8 | M 24 | 26 | 9,07 |
| 139,7 | – | 162 | ||||||||||||||
| 150 | – | 159 | 300 | 28 | 250 | 75 | 182 | 4,5 | 10 | 12 | 218 | 3 | 8 | M 24 | 26 | 11,8 |
| 168,3 | – | 192 | ||||||||||||||
| (175) | 193,7 | – | 350 | 32 | 295 | 82 | 218 | 5,6 | 10 | 15 | 260 | 3 | 12 | M 27 | 30 | 18,2 |
| 200 | 219,1 | – | 375 | 34 | 320 | 88 | 244 | 6,3 | 10 | 16 | 285 | 3 | 12 | M 27 | 30 | 21,5 |
| 250 | – | 267 | 450 | 38 | 385 | 105 | 298 | 7,1 | 12 | 18 | 345 | 3 | 12 | M 30 | 33 | 34,9 |
| 273 | – | 306 | ||||||||||||||
| 300 | 323,9 | – | 515 | 42 | 450 | 115 | 362 | 8 | 12 | 18 | 410 | 4 | 16 | M 30 | 33 | 49,7 |
| 350 | 355,6 | – | 580 | 46 | 510 | 125 | 408 | 8,8 | 12 | 20 | 465 | 4 | 16 | M 33 | 36 | 68,1 |
| – | 368 | |||||||||||||||
| 400 | 406,4 | – | 660 | 50 | 585 | 135 | 462 | 11 | 12 | 20 | 535 | 4 | 16 | M 36 | 39 | 96,5 |
| – | 419 | |||||||||||||||
| (450) | 457 | – | 685 | 50 | 610 | 135 | 500 | 12,5 | 12 | 20 | 560 | 4 | 20 | M 36 | 39 | 99,7 |
| 500 | 508 | – | 755 | 52 | 670 | 140 | 562 | 14,2 | 12 | 20 | 615 | 4 | 20 | M 39 | 42 | 117 |
Rizwan Flanges, a leading supplier in Manama, Bahrain, offers an extensive selection of DIN 2635 PN40 Weld Neck 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.
DIN 2635 PN40 Weld Neck Flanges are primarily used in high-pressure piping systems across industries such as oil and gas, petrochemical, power generation, and chemical processing. Their robust design ensures secure, leak-proof connections between pipes, valves, and other equipment in demanding environments exposed to high pressure, temperature, and fluctuating conditions. These flanges are commonly installed in critical systems like pipelines, reactors, compressors, and pumps, where performance and reliability are paramount. Their durability and precision make them essential for maintaining system integrity and long-term operational efficiency.
Yes, we offer custom sizes for DIN 2635 PN40 Weld Neck Flanges to meet specific project needs. Our team at Rizwan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@rizwanflanges.com.
| 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 |
| 24 | 32 | 20 | 1-1/4 | 1.38 | 29-1/2 |
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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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