Hot Dipped Galvanized Flanges are built for durability where corrosion is the constant enemy. Coated through an intensive galvanization process, these flanges receive a thick, uniform layer of zinc that forms a powerful barrier against rust, moisture, and harsh outdoor conditions. Beneath the coating lies solid steel strength, while the galvanized finish extends service life even in aggressive environments. Ideal for water pipelines, structural systems, marine applications, and outdoor installations, Hot Dipped Galvanized Flanges deliver long-term reliability with minimal maintenance. Tough, protective, and dependable, they stand strong against time, weather, and wear—guarding pipeline connections with confidence.
Hot-dip galvanized (HDG) flanges are fabricated by hot-dip galvanization of stainless steel or carbon with zinc plating to impart corrosion resistance Mechanically they have high strength, long-lasting and abrasion resistance, to the galvanized steel substrate Adhesion between f and is good, thus contributing to long-term performance These flanges are economical, low maintenance, and durable, hence apt for hostile environments. Generally applied in the plumbing, oil and gas, and industrial sectors, it offers consistent protection against corrosion, weather and chemicals, and system reliability and performance is suitable.
| 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 % |
Faizan Flanges, a leading supplier in Doha, Qatar, 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-dip galvanized (HDG) flanges are generally used in applications that demand high corrosion resistance and durability. They are typically utilized in plumbing fixtures, water treatment and wastewater plants, and gas and oil pipes to provide leak-free connections and long-term operation In building they assist HVAC equipment and building system during extreme weather conditions HDG flanges find application in pharmaceutical uses, marine uses and agricultural machinery, where moisture and corrosive substances exposure is halted, and provides an assured and convenient solution for essential systems.
| 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 |
| Â | Â | (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 Faizan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@faizanflanges.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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