Based in the industrial heart of Manama, Bahrain, Rizwan Flanges has built its reputation on delivering strength and reliability to projects across the globe. We specialize in manufacturing and supplying hot-dipped galvanized flanges, a product born from our understanding of the demanding environments our clients operate in. Our commitment is not just to meet specifications but to provide a crucial component that stands as a testament to durability, ensuring connections that are built to last against the test of time and the elements.
The integrity of our hot-dipped galvanized flanges is rooted in their meticulous composition and robust mechanical properties. Typically crafted from high-grade carbon or stainless steel, each flange is engineered to meet precise strength and pressure ratings. The defining feature is the hot-dip galvanizing process, which immerses the finished flange in molten zinc. This creates a metallurgically bonded coating that offers exceptional resistance to corrosion and abrasion, significantly extending the service life of the component far beyond untreated alternatives.
| 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 % |
Rizwan Flanges, a leading supplier in Manama, Bahrain, 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 |
| (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 Rizwan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@rizwanflanges.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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