Hot Dipped Galvanized Flanges are tough, reliable flanges that get their strength from a protective layer of zinc applied through the hot-dip galvanization process. This coating not only gives them impressive corrosion resistance but also ensures they have a long service life. You’ll find these flanges in piping systems where it’s crucial to guard against rust and environmental wear, like in water supply, sewage, and industrial pipelines. Made from carbon steel or mild steel, Hot Dipped Galvanized Flanges create solid, leak-proof connections and hold up well under moderate pressure and temperature. Their sturdy build, precise dimensions, and resistance to corrosion make them a smart and dependable choice for both industrial and municipal uses.
These flanges are primarily crafted from carbon steel or mild steel, featuring a consistent zinc coating that’s applied by dipping them in molten zinc. This process boosts their corrosion resistance, toughness, and durability, all while keeping their mechanical properties intact, such as tensile strength, yield strength, and impact resistance. They can handle moderate pressure and temperature, and the galvanization process ensures they’re protected from environmental factors like moisture, chemicals, and oxidation for the long haul. With their mechanical reliability and protective coating, they’re perfect for outdoor and industrial piping systems.
| Specification | Galvanized Flanges |
|---|---|
| Order Quantity | 30 Piece |
| Size | >30 inch |
| Forging Methods | Casting/ Forging/ Rolling/ Cutting |
| Production Technique | Forged/ Heat treated and machined |
| Brand | Vishal Steel |
| Flange Type | Slip On/ Blind/ Weld Neck/ Threaded |
| Color | galvanised |
| Shape | round |
| Flange Equipment | Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc |
| Finish | coated |
| Rated Pressure | as per requirement |
| Surface Finish | as per requirement |
| Diameter | depends on size |
| Supporting Material | Gasket/ Ring Joint/ Flange Bolts |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Application | Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
| Composition | Content |
|---|---|
| Sulfur, S | ≤ 0.050 % |
| Iron, Fe | 98.81 – 99.26 % (as remainder) |
| Carbon, C | 0.14 – 0.20 % |
| Manganese, Mn | 0.60 – 0.90 % |
| Phosphorous, P | ≤ 0.040 % |
Quan Flanges, a leading supplier in Da Nang, Vietnam, offers an extensive selection of Hot dipped Galvanized 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.
Hot Dipped Galvanized Flanges are commonly found in water distribution, sewage systems, chemical plants, and industrial pipelines. They shine in applications that need corrosion protection, reliable sealing, and easy installation or maintenance. These flanges work well in both aboveground and underground piping systems, offering long-lasting durability and operational efficiency. Their blend of structural strength, corrosion resistance, and adherence to industrial standards makes Hot Dipped Galvanized Flanges a top choice for projects that demand protection against rust, extended service life, and dependable performance.
| Normal Size Of Steel Pipe in Inch | NPS (Normal Pipe Size) Size in Millimeter | O.D. | Wall Thickness | Hub Outer Diameter | Weld Neck Outer Diameter | ASME B16.5 WNRF Length | WNRF Bore Daimeter | Raised Face Diameter | Height Of Raised Face | PCD | Face Of WNRF |
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | (J) | ||
| 1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 46 | – | 34.9 | 2 | 60.3 | 1.6 |
| 3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 51 | 42.9 | 2 | 69.9 | 1.6 | |
| 1 | 25 | 110 | 12.7 | 49 | 33.4 | 54 | 50.8 | 2 | 79.4 | 1.6 | |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 56 | 63.5 | 2 | 88.9 | 1.6 | |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 60 | 73 | 2 | 98.4 | 1.6 | |
| 2 | 50 | 150 | 17.5 | 78 | 60.3 | 62 | 92.1 | 2 | 120.7 | 1.6 | |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 68 | 104.8 | 2 | 139.7 | 1.6 | |
| 3 | 80 | 190 | 22.3 | 108 | 88.9 | 68 | 127 | 2 | 152.4 | 1.6 | |
| 3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 70 | 139.7 | 2 | 177.8 | 1.6 | |
| 4 | 100 | 230 | 22.3 | 135 | 114.3 | 75 | 157.2 | 2 | 190.5 | 1.6 | |
| 5 | 125 | 255 | 22.3 | 164 | 141.3 | 87 | 185.7 | 2 | 215.9 | 1.6 | |
| 6 | 150 | 280 | 23.9 | 192 | 168.3 | 87 | 215.9 | 2 | 241.3 | 1.6 | |
| 8 | 200 | 345 | 27 | 246 | 219.1 | 100 | 269.9 | 2 | 298.5 | 1.6 | |
| 10 | 250 | 405 | 28.6 | 305 | 273 | 100 | 323.8 | 2 | 362 | 1.6 | |
| 12 | 300 | 485 | 30.2 | 365 | 323.8 | 113 | 381 | 2 | 431.8 | 1.6 | |
| 14 | 350 | 535 | 33.4 | 400 | 355.6 | 125 | 412.8 | 2 | 476.3 | 1.6 | |
| 16 | 400 | 595 | 35 | 457 | 406.4 | 125 | 469.9 | 2 | 539.8 | 1.6 | |
| 18 | 450 | 635 | 38.1 | 505 | 457.2 | 138 | 533.4 | 2 | 577.9 | 1.6 | |
| 20 | 500 | 700 | 41.3 | 559 | 508 | 143 | 584.2 | 2 | 635 | 1.6 | |
| 24 | 600 | 815 | 46.1 | 663 | 610 | 151 | 692.2 | 2 | 749.3 | 1.6 |
| Size | Specification |
|---|---|
| 3/4″ Pipe | 3-1/4″ OD, 5/8″ Hub Length, Black Floor Pipe Flange |
| 1/2″ Pipe | 3″ OD, 5/8″ Hub Length, Black Floor Pipe Flange |
| 2″ Pipe | 5-1/2″ OD, 1″ Hub Length, Black Floor Pipe Flange |
| 1-1/2″ Pipe | 4-1/2″ OD, 7/8″ Hub Length, Black Floor Pipe Flange |
| 1″ Pipe | 4″ OD, 11/16″ Hub Length, Black Floor Pipe Flange |
| 1/2″ Pipe | 3-1/2″ OD, 5/8″ Hub Length, Galvanized Floor Pipe Flange |
| 1-1/4″ Pipe | 4″ OD, 13/16″ Hub Length, Black Floor Pipe Flange |
| 3/4″ Pipe | 3-1/2″ OD, 5/8″ Hub Length, Galvanized Floor Pipe Flange |
| 1/4″ Pipe | 2-3/16″ OD, 5/8″ Hub Length, Black Floor Pipe Flange |
| 3/8″ Pipe | 3″ OD, 5/8″ Hub Length, Black Floor Pipe Flange |
| 2″ Pipe | 5-1/2″ OD, 1″ Hub Length, Galvanized Floor Pipe Flange |
| 1″ Pipe | 4″ OD, 11/16″ Hub Length, Galvanized Floor Pipe Flange |
| Normal Pipe Size | Dimensions | Weight (Kilogram) | ||||
|---|---|---|---|---|---|---|
| Normal Pipe Size (Inch) | DN (mm) | Flanges In Millimeter | Flanges In Wall Thickness | Slip On | Weld Neck | Blind |
| 1/2 | 15 | 88.9 | 11.2 | 0.4 | 0.5 | 0.4 |
| 3/4 | 20 | 98.6 | 12.7 | 0.6 | 0.7 | 0.6 |
| 1 | 25 | 108 | 14.2 | 0.8 | 1 | 0.9 |
| 1 1/4 | 32 | 117.3 | 15.7 | 1 | 1.3 | 1.2 |
| 1 1/2 | 40 | 127 | 17.5 | 1.3 | 1.7 | 1.5 |
| 2 | 50 | 152.4 | 19.1 | 2.1 | 2.6 | 2.4 |
| 2 1/2 | 65 | 177.8 | 22.4 | 3.3 | 4.1 | 3.9 |
| 3 | 80 | 190.5 | 23.9 | 3.9 | 4.9 | 4.9 |
| 3 1/2 | 90 | 215.9 | 23.9 | 4.8 | 6.1 | 6.2 |
| 4 | 100 | 228.6 | 23.9 | 5.3 | 6.8 | 7.0 |
| 5 | 125 | 254 | 23.9 | 6.1 | 8.6 | 8.6 |
| 6 | 150 | 279.4 | 25.4 | 7.5 | 10.6 | 11.3 |
| 8 | 200 | 342.9 | 28.4 | 12.1 | 17.6 | 19.6 |
| 10 | 250 | 406.4 | 30.2 | 16.5 | 24 | 28.6 |
| 12 | 300 | 482.6 | 31.8 | 26.2 | 36.5 | 43.2 |
| 14 | 350 | 533.4 | 35.1 | 34.6 | 48.4 | 58.1 |
| 16 | 400 | 596.9 | 36.6 | 44.8 | 60.6 | 76.1 |
| 18 | 450 | 635 | 39.6 | 48.9 | 68.3 | 93.7 |
| 20 | 500 | 698.5 | 42.9 | 61.9 | 84.5 | 122.0 |
| 24 | 600 | 812.8 | 47.8 | 86.9 | 115 | 185.0 |
Yes, we offer custom sizes for Hot dipped Galvanized Flanges to meet specific project needs. Our team at Quan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@quanflanges.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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