Shawn Flanges is a well-respected manufacturer and supplier of GOST 33259 Flanges based in Houston, USA. We pride ourselves on delivering precision-engineered products that meet both Russian and international standards. Our flanges are crafted with meticulous attention to dimensional accuracy and made from top-quality materials, ensuring they are durable, leak-proof, and perform reliably even in high-pressure and high-temperature situations. Available in various pressure classes, sizes, and face types, our GOST 33259 Flanges are perfect for a wide range of industrial piping applications. With exceptional resistance to stress, corrosion, and wear, Shawn Flanges provides products that are in high demand across the oil & gas, petrochemical, marine, power generation, and water treatment sectors.
GOST 33259 Flanges are made from premium materials like carbon steel, stainless steel, and alloy steel, tailored to meet specific application needs. They typically include elements such as iron, carbon, chromium, nickel, and molybdenum, which enhance their strength and resistance to corrosion. These flanges boast impressive tensile and yield strength, good hardness, and outstanding impact resistance, even under fluctuating temperatures. Their mechanical properties enable them to endure extreme pressure and thermal stress while maintaining their shape. This combination of strong materials and high-performance mechanics guarantees a long-lasting, safe, and efficient operation in critical piping systems.
| 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 |
Shawn Flanges a leading supplier in Houston, USA, 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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