Strategically based in the heart of Addis Ababa, Gugsa Flanges stands as a dedicated partner for Ethiopia’s growing industrial sector, providing reliable and robust piping solutions. We specialize in the supply and manufacture of GOST 33259 flanges, a standard revered for its reliability in demanding environments. Our commitment is to deliver components that not only meet rigorous specifications but also contribute to the seamless and safe operation of vital infrastructure projects across the nation, ensuring every connection we supply is built with integrity and precision.
Crafted to meet the stringent requirements of the GOST 33259 standard, these flanges are produced from specific grades of carbon or low-alloy steel, giving them a dependable chemical composition. This careful formulation is what grants them their notable mechanical properties, including high tensile strength and excellent resistance to impact, even under significant pressure fluctuations. This robust construction ensures they can handle the stresses of industrial service, maintaining a secure seal when it matters most.
| Standard | GOST / ГОСТ 33259 |
| 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 |
Gugsa Flanges a leading supplier in Addis Ababa, Ethiopia, 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 33259 flange is widely used in industrial applications where reliable high-strength connections are required. Commonly found in oil and gas pipelines, petrochemical plants, power plants, and chemical plants. These flanges provide safe, watertight joint transport for liquid gases and hot water under high pressure and high temperature conditions. Their heat exchangers, valves, pumps , compressors etc. are important in applications, ensuring safe and efficient operating procedures critical Flanges. Also provide easy maintenance and disassembly for maintenance and make them desirable for demanding industries for durability, safety and reliable performance in harsh working environments.
| Diameter conditional (DN), millimeter | O.D. Of (D), millimeter | Diameter of spacing (D0), millimeter | Diameter internal (dB), millimeter | Flange wall thickness (b), millimeter | fastener Size (d0), millimeter | mounting holes Number (n), pcs | Weight of one flange, kilogram |
| 15 | 80/95 | 55/65 | nineteen | 10/10 | 11/14 | 4/4 | 0.3 / 0.5 |
| 20 | 90/105 | 65/76 | nineteen | 12/12 | 11/14 | 4/4 | 0.5 / 0.7 |
| 25 | 100/115 | 75/85 | nineteen | 12/12 | 11/14 | 4/4 | 0.6 / 0.9 |
| 32 | 120/135 | 90/100 | 39 | 13/14 | 14/18 | 4/4 | 1.1 / 1.4 |
| 40 | 130/145 | 100/110 | 46 | 13/15 | 14/18 | 4/4 | 1.2 / 2 |
| 50 | 140/160 | 110/125 | 59 | 13/15 | 14/18 | 4/4 | 1.3 / 2.1 |
| 65 | 160/180 | 130/145 | 78 | 13/17 | 14/18 | 4/4 | 1.6 / 2.8 |
| 80 | 180/195 | 150/160 | 91 | 15/17 | 18/18 | 4/4 | 2.4 / 3.2 |
| 100 | 205/215 | 170/180 | 110 | 15/19 | 18/18 | 4/8 | 2.8 / 4 |
| 125 | 235/245 | 200/210 | 135 | 17/21 | 18/18 | 8/8 | 3.8 / 5.4 |
| 150 | 260/280 | 225/240 | 161 | 17/21 | 18/22 | 8/8 | 4.4 / 6.6 |
| 200 | 315/335 | 280/295 | 222 | 19/21 | 18/22 | 8/8 | 5.9 / 8 |
| 250 | 370/390 | 335/350 | 273 | 20/23 | 18/22 | 12/12 | 7.6 / 10 |
| 300 | 435/440 | 395/400 | 325 | 20/24 | 22/22 | 12/12 | 10.2 / 13 |
| 350 | 485/500 | 445/460 | 377 | 22/24 | 22/22 | 12/16 | 12.6 / 16 |
| 400 | 535/565 | 495/515 | 426 | 24/26 | 22/26 | 16/16 | 15.2 / 21 |
| 500 | 640/670 | 600/620 | 530 | 25/28 | 22/26 | 16/20 | 19/28 |
| 600 | 755/780 | 705/725 | 630 | 25/31 | 26/30 | 20/20 | 26/40 |
| 800 | 975/1010 | 920/950 | 820 | 27/37 | 30/33 | 24/24 | 46/79 |
| 1000 | 1175/1220 | 1120/1160 | 1020 | 31/43 | 30/33 | 28/28 | 64/118 |
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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