Vishal Flanges, based in Delhi, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Carbon Steel Blind Flanges. Known for their sturdy construction and dependability, our blind flanges are crafted to meet the diverse needs of various industrial applications. With a strong commitment to quality, Vishal Flanges adheres to international standards, ensuring that our products deliver outstanding performance and durability. Thanks to our state-of-the-art manufacturing facilities and a talented workforce, we offer customized flange solutions for industries around the globe, prioritizing safety and efficiency.
Our Carbon Steel Blind Flanges are mainly made up of carbon and iron, along with varying levels of manganese, silicon, and other trace elements. This unique blend guarantees remarkable strength, toughness, and impact resistance. These flanges boast impressive mechanical properties, such as high tensile strength, good ductility, and excellent wear resistance. Built to last, they can handle extreme pressures and temperatures, making them perfect for even the toughest industrial settings.
| Specification | ASTM A694 / ASME SA694 |
|---|---|
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
| Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, 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 |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Manufacturer of | 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 B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A694 Ff42 Carbon Steel Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
| Grades | Carbon Steel A105, A36,is2062, LF2, F42, F52, F56, F60, F65, F70, F80, |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Vishal Flanges, a leading supplier in Delhi, India, offers an extensive selection of Carbon Steel Blind 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.
Vishal Flanges’ Carbon Steel Blind Flanges find extensive use in sectors like oil and gas, petrochemical, power generation, and water treatment. Designed to effectively seal off pipelines, valves, or machinery openings, these flanges provide secure and leak-proof closures. They are particularly useful for testing pipeline pressure and isolating sections of piping systems during maintenance work. With their robust design and versatility, Carbon Steel Blind Flanges ensure reliable performance in both low-pressure and high-pressure systems, making them essential for critical industrial operations.
| Size in In | Size in Millimeter | (OD) Outer Diameter | Flange Thick. | Hub OD | Weld Neck Outer Diameter | Welding Neck Length | Bore | RF Diameter | RF Height | PCD | Weld Face |
| A | B | C | D | E | F | G | H | I | J | ||
| 1/2 | 15 | 95 | 12.7 | 38 | 21.3 | 51 | Refer Note | 34.9 | 2 | 66.7 | 1.6 |
| 3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 56 | 42.9 | 2 | 82.6 | 1.6 | |
| 1 | 25 | 125 | 15.9 | 54 | 33.4 | 60 | 50.8 | 2 | 88.9 | 1.6 | |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 64 | 63.5 | 2 | 98.4 | 1.6 | |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 67 | 73 | 2 | 114.3 | 1.6 | |
| 2 | 50 | 165 | 20.7 | 84 | 60.3 | 68 | 92.1 | 2 | 127 | 1.6 | |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 75 | 104.8 | 2 | 149.2 | 1.6 | |
| 3 | 80 | 210 | 27 | 117 | 88.9 | 78 | 127 | 2 | 168.3 | 1.6 | |
| 3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 79 | 139.7 | 2 | 184.2 | 1.6 | |
| 4 | 100 | 255 | 30.2 | 146 | 114.3 | 84 | 157.2 | 2 | 200 | 1.6 | |
| 5 | 125 | 280 | 33.4 | 178 | 141.3 | 97 | 185.7 | 2 | 235 | 1.6 | |
| 6 | 150 | 320 | 35 | 206 | 168.3 | 97 | 215.9 | 2 | 269.9 | 1.6 | |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 269.9 | 2 | 330.2 | 1.6 | |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.4 | 1.6 | |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 1.6 | |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 412.8 | 2 | 514.4 | 1.6 | |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 469.9 | 2 | 571.5 | 1.6 | |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 1.6 | |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 1.6 | |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 1.6 |
| Welding Neck Flange Bores (in inch) | ||||||||||||||
| NPS | O D | Sch 10 | Sch 20 | Sch 30 | Std. Wall | Sch 40 | Sch 60 | Extra Strong | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | Double Extra Strong |
| 1/2” | 0.840 | 0.674 | 0.622 | 0.622 | 0.546 | 0.546 | 0.464 | 0.252 | ||||||
| 3/4” | 1.050 | 0.884 | 0.824 | 0.824 | 0.742 | 0.742 | 0.612 | 0.434 | ||||||
| 1” | 1.315 | 1.097 | 1.049 | 1.049 | 0.957 | 0.957 | 0.815 | 0.599 | ||||||
| 1.1/4” | 1.660 | 1.442 | 1.380 | 1.380 | 1.278 | 1.278 | 1.160 | 0.896 | ||||||
| 1.1/2” | 1.900 | 1.682 | 1.610 | 1.610 | 1.500 | 1.500 | 1.338 | 1.100 | ||||||
| 2” | 2.375 | 2.157 | 2.067 | 2.067 | 1.939 | 1.939 | 1.687 | 1.503 | ||||||
| 2.1/2” | 2.875 | 2.635 | 2.469 | 2.469 | 2.323 | 2.323 | 2.125 | 1.771 | ||||||
| 3” | 3.500 | 3.260 | 3.068 | 3.068 | 2.900 | 2.900 | 2.624 | 2.300 | ||||||
| 3-1/2” | 4.000 | 3.760 | 3.548 | 3.548 | 3.364 | 3.364 | 2.728 | |||||||
| 4” | 4.500 | 4.260 | 4.026 | 4.026 | 3.826 | 3.826 | 3.624 | 3.438 | 3.152 | |||||
| 5” | 5.563 | 5.295 | 5.047 | 5.047 | 4.813 | 4.813 | 4.563 | 4.313 | 4.063 | |||||
| 6” | 6.625 | 6.357 | 6.065 | 6.065 | 5.761 | 5.761 | 5.501 | 5.187 | 4.897 | |||||
| 8” | 8.625 | 8.329 | 8.125 | 8.071 | 7.981 | 7.981 | 7.813 | 7.625 | 7.625 | 7.437 | 7.187 | 7.001 | 6.813 | 6.875 |
| 10” | 10.750 | 10.420 | 10.250 | 10.136 | 10.020 | 10.020 | 9.750 | 9.750 | 9.562 | 9.312 | 9.062 | 8.750 | 8.500 | 8.750 |
| 12” | 12.750 | 12.390 | 12.250 | 12.090 | 12.000 | 11.938 | 11.626 | 11.750 | 11.374 | 11.062 | 10.750 | 10.500 | 10.126 | 10.750 |
| 14” | 14.000 | 13.500 | 13.376 | 13.250 | 13.250 | 13.124 | 12.812 | 13.000 | 12.500 | 12.124 | 11.814 | 11.500 | 11.188 | |
| 16” | 16.000 | 15.500 | 15.376 | 15.250 | 15.250 | 15.000 | 14.688 | 15.000 | 14.312 | 13.938 | 13.564 | 13.124 | 12.812 | |
| 18” | 18.000 | 17.500 | 17.376 | 17.124 | 17.250 | 16.876 | 16.500 | 17.000 | 16.124 | 15.688 | 15.250 | 14.876 | 14.438 | |
| 20” | 20.000 | 19.500 | 19.250 | 19.000 | 19.250 | 18.812 | 18.376 | 19.000 | 17.938 | 17.438 | 17.000 | 16.500 | 16.062 | |
| 24” | 24.000 | 23.500 | 23.250 | 22.876 | 23.250 | 22.624 | 22.062 | 23.000 | 21.562 | 20.938 | 20.376 | 19.876 | 19.312 | |
| 30” | 30.000 | 29.376 | 29.000 | 28.750 | 29.250 | 29.000 | ||||||||
| 36” | 36.000 | 35.376 | 35.000 | 34.750 | 35.250 | 34.500 | 35.000 | |||||||
| 42” | 42.000 | 41.250 | 41.000 | |||||||||||
Yes, we offer custom sizes for Carbon Steel Blind Flanges to meet specific project needs. Our team at Vishal Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@vishalflanges.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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