Gugsa Flanges, based in the heart of Addis Ababa, has established itself as a trusted name for industrial reliability. We specialize in the manufacturing and supply of high-quality BS 4504 flanges, serving as a cornerstone for the nation’s growing infrastructure and industrial sectors. Our commitment is to provide durable, precision-engineered connecting components that ensure the integrity and safety of piping systems across Ethiopia. We take pride in being a local partner you can count on for products that meet rigorous international standards.
The composition and mechanical properties of BS 4504 flanges are what make them so dependable. Typically fabricated from robust materials like carbon steel, these flanges are designed to withstand significant pressure and temperature variations. Their strength, ductility, and resistance to wear are meticulously controlled to align with the standard’s strict specifications. This ensures that every flange we produce offers consistent performance, creating secure and leak-proof joints in even the most demanding applications, which is essential for long-term system safety.
Gugsa Flanges, a leading supplier in Addis Ababa, Ethiopia, offers an extensive selection of BS 4504 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 | (1/2″) To (48″) |
|---|---|
| Size Of Bore Diameter Flange | NPS ≤ 10 |
| Standard Dimensions | EN-1092, ASME B16.48, API605, BS4504, EN1092, UNI, ISO, API7S-43, ANSI/ASME B16.5, API7S-15, MSS S44, IS 2062, ASME B16.36, DIN, AWWA C207, B16.47 Series A & B, BS1560-3.1, ISO70051, API. |
| Minimum Pressure | 150# To 2500# |
| Flange Face Type Manufacturer | Raised Face, Groove And Small Tongue Groove, RTJ, Flat Face, Large Tongue & Large Male-Female And Small Male-Female, Lap-Joint Face. |
| Top Six Type Of Flange | Threaded Flange, Lap Joint Flange, Socket-Weld Flange, Blind Flange, Slip-On Flange, Weld Neck Flange |
| Standard Materials | Duplex Steel & Super Duplex Steel, Copper Nickel, Inconel, Mild Steel, Stainless Steel, Hastelloy, Alloy Steel, Carbon Steel. |
| Thickness Length | NPS ≤ 18 |
| Manufacturing Process | Forged/ Machined/ Heat Treated |
| Other Type Of Flange | Forged/ Plate/ Threaded |
| DN | D | C1 | C2 | H1 | H2 | H3 | R | A | N1 | N2 | B1 | d1 | f1 |
| 10 | 90 | 14 | 14 | 20 | 35 | 6 | 3 | 17,2 | 28 | 30 | 18 | 40 | 2 |
| 15 | 95 | 14 | 14 | 20 | 35 | 6 | 3 | 21,3 | 32 | 35 | 22 | 45 | 2 |
| 20 | 105 | 14 | 14 | 24 | 38 | 6 | 4 | 26,9 | 39 | 45 | 27,5 | 58 | 2 |
| 25 | 115 | 16 | 16 | 24 | 38 | 6 | 4 | 33,7 | 46 | 52 | 34,5 | 68 | 2 |
| 32 | 140 | 18 | 16 | 26 | 40 | 6 | 5 | 42,4 | 56 | 60 | 43,5 | 78 | 2 |
| 40 | 150 | 18 | 16 | 26 | 42 | 7 | 5 | 48,3 | 64 | 70 | 49,5 | 88 | 3 |
| 50 | 165 | 20 | 18 | 28 | 45 | 8 | 5 | 60,3 | 74 | 84 | 61,5 | 102 | 3 |
| 65 | 185 | 20 | 18 | 32 | 45 | 10 | 6 | 76,1 | 92 | 104 | 77,5 | 122 | 3 |
| 80 | 200 | 20 | 20 | 34 | 50 | 10 | 6 | 88,9 | 110 | 118 | 90,5 | 138 | 3 |
| 100 | 220 | 22 | 20 | 40 | 52 | 12 | 6 | 114,3 | 130 | 140 | 116 | 162 | 3 |
| 125 | 250 | 22 | 22 | 44 | 55 | 12 | 6 | 139,7 | 158 | 168 | 141,5 | 188 | 3 |
| 150 | 285 | 24 | 22 | 44 | 55 | 12 | 8 | 168,3 | 184 | 195 | 170,5 | 212 | 3 |
| 200 | 340 | 26 | 24 | 44 | 62 | 16 | 8 | 219,1 | 234 | 246 | 221,5 | 268 | 3 |
| 250 | 405 | 29 | 26 | 46 | 70 | 16 | 10 | 273 | 288 | 298 | 276,5 | 320 | 3 |
| 300 | 460 | 32 | 28 | 46 | 78 | 16 | 10 | 323,9 | 342 | 350 | 327,5 | 378 | 4 |
| 350 | 520 | 35 | 30 | 57 | 82 | 16 | 10 | 355,6 | 390 | 400 | 359 | 438 | 4 |
| 400 | 580 | 38 | 32 | 63 | 85 | 16 | 10 | 406,4 | 444 | 456 | 411,0 | 490 | 4 |
| 450 | 640 | 42 | 34 | 68 | 87 | 16 | 12 | 457,0 | 490 | 502 | 462,0 | 550 | 4 |
| 500 | 715 | 46 | 34 | 73 | 90 | 16 | 12 | 508,0 | 546 | 559 | 513,5 | 610 | 4 |
| 600 | 840 | 52 | 36 | 83 | 95 | 18 | 12 | 610,0 | 650 | 658 | 616,5 | 725 | 5 |
| 700 | 910 | 60 | 36 | 83 | 100 | 18 | 12 | 711,0 | 750 | 760 | – | 795 | 5 |
| Nom. Size |
Flange |
Raised Face |
Boss |
Drilling |
Bolting |
Neck |
Bore Diameter | ||||||||||||
| DN | A | C | C1 | C2 | D | D1 | G | X | N | No. | I | J | M | F | E | R | T | B | |
| 10 | 90 | 14 | 14 | 14 | 20 | 35 | 40 | 2 | 30 | 4 | 14 | 60 | M12 | 28 | 17.2 | 6 | 3 | 1.8 | 18.0 |
| 15 | 95 | 14 | 14 | 14 | 20 | 35 | 45 | 2 | 35 | 4 | 14 | 65 | M12 | 32 | 21.3 | 6 | 3 | 2.0 | 22.0 |
| 20 | 105 | 16 | 16 | 16 | 24 | 38 | 58 | 2 | 45 | 4 | 14 | 75 | M12 | 39 | 26.9 | 6 | 4 | 2.3 | 27.5 |
| 25 | 115 | 16 | 16 | 16 | 24 | 38 | 68 | 2 | 52 | 4 | 14 | 85 | M12 | 46 | 33.7 | 6 | 4 | 2.6 | 34.5 |
| 32 | 140 | 16 | 18 | 16 | 26 | 40 | 78 | 2 | 60 | 4 | 18 | 100 | M16 | 56 | 42.4 | 6 | 5 | 2.6 | 43.5 |
| 40 | 150 | 16 | 18 | 16 | 26 | 42 | 88 | 3 | 70 | 4 | 18 | 110 | M16 | 64 | 48.3 | 7 | 5 | 2.6 | 49.5 |
| 50 | 165 | 18 | 20 | 18 | 28 | 45 | 102 | 3 | 84 | 4 | 18 | 125 | M16 | 74 | 60.3 | 8 | 5 | 2.9 | 61.5 |
| 65 | 185 | 18 | 20 | 18 | 32 | 45 | 122 | 3 | 104 | 4 / 8 | 18 | 145 | M16 | 92 | 76.1 | 10 | 6 | 2.9 | 77.5 |
| 80 | 200 | 20 | 20 | 20 | 34 | 50 | 138 | 3 | 118 | 8 | 18 | 160 | M16 | 110 | 88.9 | 10 | 6 | 3.2 | 90.5 |
| 100 | 220 | 20 | 22 | 20 | 40 | 52 | 162 | 3 | 140 | 8 | 18 | 180 | M16 | 130 | 114.3 | 12 | 6 | 3.6 | 116.0 |
| 125 * | 250 | 22 | 22 | 22 | 44 | 55 | 188 | 3 | 168 | 8 | 18 | 210 | M16 | 158 | 139.7 | 12 | 6 | 4.0 | 141.5 |
BS 4504 flanges are extensively used across industries because of their strength, reliability, and accuracy. These flanges are commonly used in pipeline systems and are necessary for joining pipes, valves, pumps, and other equipment to provide a leak-proof, secure joint. BS 4504 flanges are ideally applicable to industries such as oil and gas, water treatment, petrochemical, power generation, and HVAC systems. Their versatility makes them perform even in high-temperature, high-pressure, and corrosive applications. In various sizes and material options, BS 4504 flanges are designed to endure stringent industry specifications, with lasting performance and safety.
Yes, we offer custom sizes for BS 4504 Flanges to meet specific project needs. Our team at Gugsa Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@gugsaflanges.com.
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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