Based in the heart of Naypyidaw, Khun Flanges has built a reputation as a trusted partner for industrial supply, specializing in the precise manufacturing of GOST 33259 flanges. We understand that the integrity of your piping systems is paramount, which is why our focus is on delivering components that meet rigorous standards for reliability and performance. Our commitment extends beyond just supply; we aim to be a supportive resource for projects across Myanmar, ensuring you have the right connections to keep your operations running smoothly and safely.
The composition of these flanges typically involves robust carbon steels, ensuring they possess the necessary mechanical properties for demanding environments. This includes a high tensile strength that allows them to withstand significant internal pressure without deforming. They also offer excellent yield strength, guaranteeing a reliable performance under load. These combined properties make the flanges exceptionally durable, providing a long service life even in challenging industrial settings where reliability is non-negotiable.
| 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 |
Khun Flanges a leading supplier in Naypyidaw, Myanmar, 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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