Veer Flanges is a trusted manufacturer of GOST 12821-80 flanges based in the Kolkatas, India. Known for their precision engineering and durability these flanges are designed to meet the stringent standards of the GOST specification. Ensuring reliable performance across a wide range of industrial applications. Veer flanges size and pressure levels to accommodate operational requirements offers a wide range of features. Whereby they Ideal for pipeline machinery and structural connections. Dedicated to providing quality products and customer satisfaction our services hear that oil, gas, petrochemicals and power generation offer robust, cost-effective solutions tailored to the specific needs of the business.
GOST 12821-are usually made of high-quality materials such as carbon steel, stainless steel, or steel alloys. Which are infused with elements such as carbon, manganese, chromium, and nickel for strength and corrosion resistance against. These flanges exhibit excellent mechanical properties , including 400 up to 600 MPa in tensile strength, yield strength of 250-350 MPa, excellent elongation and shock resistance. Advantages include great durability perfect dimensional accuracy and compatibility with high pressure and temperature conditions. Their rugged design ensures leak-proof connections making them ideal for complex industrial applications in oil, gas, petrochemical and electricity generation and ensuring reliable operation so it works well.
| Standard | GOST / ГОСТ 12821-80 |
| Size | 1/2″ to 48″ |
| UNI | 6Bar 16Bar 10Bar 25Bar 40Bar |
| Class | 300 LBS, 150 LBS, 900 LBS, 600 LBS, 1500 LBS, 2500 LBS |
| EN | 6Bar 25Bar 10Bar 40Bar 16Bar |
| Flanges Face Type Provided By Manufacturer | RF (Raised Face), RTJ (Ring Type Joint) |
| BS | BS4504 , BS4504, BS1560, BS10 |
| Value Added Services | CNC Machining, Customised Flanges |
| Outer diameters | 1/2” to 24” |
| Making Methods Provided By Manufacturer | Casting And Forging Rolling And Cutting |
| JIS | 5K, 16 K 10 K, 20 K, 40 K, 30 K, 63 K |
| Flanges Test | Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector |
| Coating/Surface Treatment By Manufacturer | Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized |
| Flanges Equipment | Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc |
| Standards Provided By Manufacturer | BS4504, BS 10, API7S-15, JISB2220, BS1560-3.1, ANSI/ASME B16.5/16.36/16.47A/16.47B, EN1092, DIN, API7S-43, API605, B16.48, ISO70051, MSS S44 |
Veer Flanges a leading supplier in Kolkata, India, offers an extensive selection of GOST 12821-80 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.
The GOST 12821-80 flange is widely used in high-pressure pipelines, industrial machinery and equipment in various industries. Commonly used in the oil, gas, petrochemical and electrical industries these flanges provide safe and reliable connections .To liquid and steam pipelines under extreme conditions their design make sure it is a watertight joint, and allows for temperature adjustment. compressors valves and other important applications. In addition it makes it easier to connect and disconnect pipelines, simplifying maintenance and inspection. Renowned for compatibility with high pressure and high temperature environments GOST 12821-80 flanges help enhance the safety efficiency and functionality of the system
| Conditional passage Dy | (b) | (d1) | (Dn) | (Dm) | Mass, kg | ||||
| connecting projection (C) | protrusion (C) | hollow (C) | thorn (C) | groove (C) | |||||
| 10 | 10 | 8 | 15 | 22 | 0,34 | 0,34 | 0,32 | 0,34 | 0,33 |
| 15 | 12 | 19 | 28 | 0,40 | 0,40 | 0,38 | 0,40 | 0,40 | |
| 20 | 18 | 26 | 36 | 0,53 | 0,53 | 0,50 | 0,53 | 0,52 | |
| 25 | 12 | 25 | 33 | 42 | 0,76 | 0,77 | 0,72 | 0,75 | 0,75 |
| 32 | 31 | 39 | 50 | 1,10 | 1,08 | 1,04 | 1,08 | 1,08 | |
| 40 | 38 | 46 | 60 | 1,36 | 1,37 | 1,28 | 1,30 | 1,34 | |
| 50 | 49 | 58 | 70 | 1,53 | 1,51 | 1,44 | 1,46 | 1,47 | |
| 65 | 66 | 77 | 88 | 1,97 | 2,06 | 1,83 | 1,72 | 1,75 | |
| 80 | 13 | 78 | 90 | 102 | 2,76 | 2,76 | 2,80 | 2,65 | 2,72 |
| 100 | 96 | 110 | 122 | 3,35 | 3,04 | 3,03 | 3,03 | 3,04 | |
| 125 | 15 | 121 | 135 | 148 | 4,66 | 4,24 | 3,66 | 4,50 | 4,55 |
| 150 | 146 | 161 | 172 | 5,37 | 5,85 | 4,93 | 5,29 | 5,35 | |
| (175) | 17 | 177 | 196 | 210 | 7,32 | 8,10 | 6,92 | 7,11 | 7,16 |
| 200 | 202 | 222 | 235 | 8,37 | 9,35 | 7,75 | 7,98 | 8,05 | |
| (225) | 226 | 248 | 260 | 9,45 | 9,25 | 8,72 | 8,98 | 9,06 | |
| 250 | 18 | 254 | 278 | 288 | 10,99 | 10,69 | 10,14 | 12,20 | 12,30 |
| 300 | 303 | 330 | 340 | 14,82 | 14,28 | 14,10 | 13,81 | 14,11 | |
| 350 | 351 | 382 | 390 | 17,69 | 18,65 | 17,64 | 16,35 | 16,72 | |
| 400 | 398 | 432 | 440 | 20,55 | 19,69 | 19,30 | 18,83 | 19,31 | |
| (450) | 450 | 484 | 494 | 23,63 | 23,60 | 21,90 | 21,62 | 22,24 | |
| 500 | 19 | 501 | 535 | 545 | 26,63 | 29,10 | 25,90 | 24,44 | 25,10 |
| 600 | 602 | 636 | 650 | 35,79 | 35,60 | 33,40 | 37,49 | 33,67 | |
| (700) | 692 | 726 | 740 | 44,31 | 44,10 | 41,10 | 40,60 | 41,86 | |
| 800 | 792 | 826 | 844 | 56,17 | 55,20 | 52,20 | 51,67 | 53,36 | |
| (900) | 21 | 892 | 926 | 944 | 66,79 | – | – | – | – |
| 1000 | 992 | 1028 | 1044 | 73,51 | |||||
| 1200 | 23 | 1192 | 1228 | 1248 | 111,43 | ||||
| 1400 | 27 | 1392 | 1428 | 1456 | 156,58 | ||||
| 1600 | 32 | 1592 | 1628 | 1660 | 218,57 | ||||
Yes, we offer custom sizes for GOST 12821-80 Flanges to meet specific project needs. Our team at Veer Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@veerflanges.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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