Kyoga Flanges, based in Bedok, Bedok, is a leading manufacturer and supplier of high-quality DIN 2631 PN6 Weld Neck Flanges. Designed for secure, leak-proof connections, these flanges are ideal for low-pressure applications across industries such as oil and gas, petrochemical, and water treatment. With a commitment to durability and precision, Kyoga Flanges delivers reliable products that meet international standards, ensuring long-lasting performance and safety. Trust Kyoga Flanges for exceptional solutions tailored to your industrial piping needs.
DIN 2631 PN6 Weld Neck Flanges are typically composed of carbon steel or alloy steel, providing strength and corrosion resistance. Their mechanical properties include moderate tensile strength and good impact resistance, making them suitable for low-pressure applications. Designed to withstand mild operational stresses, these flanges ensure secure, leak-proof connections, particularly in systems with fluctuating temperatures. The advantages of DIN 2631 PN6 Weld Neck Flanges include enhanced alignment, reduced stress concentration, and ease of installation, making them ideal for industries like petrochemical, water treatment, and low-pressure pipelines where reliability is essential.
| 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 | 80 | 12 | 55 | 30 | 28 | 2 | 4 | 6 | 40 | 2 | 4 | M 10 | 11 | 0,392 |
| 21,3 | – | 30 | ||||||||||||||
| 20 | – | 25 | 90 | 14 | 65 | 32 | 35 | 2,3 | 4 | 6 | 50 | 2 | 4 | M 10 | 11 | 0,592 |
| 26,9 | – | 38 | ||||||||||||||
| 25 | – | 30 | 100 | 14 | 75 | 35 | 40 | 2,6 | 4 | 6 | 60 | 2 | 4 | M 10 | 11 | 0,747 |
| 33,7 | – | 42 | ||||||||||||||
| 32 | – | 38 | 120 | 14 | 90 | 35 | 50 | 2,6 | 6 | 6 | 70 | 2 | 4 | M 12 | 14 | 1,05 |
| 42,4 | – | 55 | ||||||||||||||
| 40 | – | 44,5 | 130 | 14 | 100 | 38 | 58 | 2,6 | 6 | 7 | 80 | 3 | 4 | M 12 | 14 | 1,18 |
| 48,3 | – | 62 | ||||||||||||||
| 50 | – | 57 | 140 | 14 | 110 | 38 | 70 | 2,9 | 6 | 8 | 90 | 3 | 4 | M 12 | 14 | 1,34 |
| 60,3 | – | 74 | ||||||||||||||
| 65 | 76,1 | – | 160 | 14 | 130 | 38 | 88 | 2,9 | 6 | 9 | 110 | 3 | 4 | M 12 | 14 | 1,67 |
| 80 | 88,9 | – | 190 | 16 | 150 | 42 | 102 | 3,2 | 8 | 10 | 128 | 3 | 4 | M 16 | 18 | 2,71 |
| 100 | – | 108 | 210 | 16 | 170 | 45 | 122 | 3,6 | 8 | 10 | 148 | 3 | 4 | M 16 | 18 | 3,24 |
| 114,3 | 130 | |||||||||||||||
| 125 | – | 133 | 240 | 18 | 200 | 48 | 148 | 4 | 8 | 10 | 178 | 3 | 8 | M 16 | 18 | 4,49 |
| 139,7 | – | 155 | ||||||||||||||
| 150 | – | 159 | 265 | 18 | 225 | 48 | 172 | 4,5 | 10 | 12 | 202 | 3 | 8 | M 16 | 18 | 5,15 |
| 168,3 | – | 184 | ||||||||||||||
| 200 | 219,1 | – | 320 | 20 | 280 | 55 | 236 | 5,9 | 10 | 15 | 258 | 3 | 8 | M 16 | 18 | 7,78 |
| 250 | – | 267 | 375 | 22 | 335 | 60 | 282 | 6,3 | 12 | 15 | 312 | 3 | 12 | M 16 | 18 | 10,8 |
| 273 | – | 290 | ||||||||||||||
| 300 | 323,9 | – | 440 | 22 | 395 | 62 | 342 | 7,1 | 15 | 15 | 365 | 4 | 12 | M 20 | 22 | 14 |
| 350 | 355,6 | – | 490 | 22 | 445 | 62 | 385 | 7,1 | 12 | 15 | 415 | 4 | 12 | M 20 | 22 | 18,5 |
| – | 368 | 16,7 | ||||||||||||||
| 400 | 406,4 | – | 540 | 22 | 495 | 65 | 438 | 7,1 | 12 | 15 | 465 | 4 | 16 | M 20 | 22 | 21,2 |
| – | 419 | 19 | ||||||||||||||
| 500 | 508 | – | 645 | 24 | 600 | 68 | 538 | 7,1 | 12 | 15 | 570 | 4 | 20 | M 20 | 22 | 28,6 |
| 600 | 610 | – | 755 | 24 | 705 | 70 | 640 | 7,1 | 12 | 16 | 670 | 5 | 20 | M 24 | 26 | 31,5 |
| 700 | 711 | – | 860 | 24 | 810 | 70 | 740 | 7,1 | 12 | 16 | 775 | 5 | 24 | M 24 | 26 | 37,4 |
| 800 | 813 | – | 975 | 24 | 920 | 70 | 842 | 7,1 | 12 | 16 | 880 | 5 | 24 | M 27 | 30 | 46,1 |
| 900 | 914 | – | 1075 | 26 | 1020 | 70 | 942 | 7,1 | 12 | 16 | 980 | 5 | 24 | M 27 | 30 | 55,6 |
| 1000 | 1016 | – | 1175 | 26 | 1120 | 70 | 1045 | 7,1 | 16 | 16 | 1080 | 5 | 28 | M 27 | 30 | 61,9 |
Kyoga Flanges, a leading supplier in Bedok, Bedok, offers an extensive selection of DIN 2631 PN6 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 2631 PN6 Weld Neck Flanges are primarily used in low-pressure piping systems across industries such as oil and gas, petrochemical, water treatment, and HVAC. Their design allows for secure, leak-proof connections and minimizes stress at the base, making them ideal for systems where temperature and pressure may fluctuate mildly. These flanges are commonly installed in pipelines, pumps, and valves, providing stability and alignment. Their durability and precise fit make them essential for ensuring efficient flow and system integrity in low-pressure applications.
Yes, we offer custom sizes for DIN 2631 PN6 Weld Neck Flanges to meet specific project needs. Our team at Kyoga Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@www.kyogaflanges.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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