Strategically located in the dynamic industrial landscape of Manama, Bahrain, Rizwan Flanges has built a solid reputation for precision and reliability in the manufacturing and supply of critical piping components. Our specialization lies in ANSI B16.36 flanges, where we combine expert craftsmanship with stringent international standards. We understand that these components are the backbone of demanding industrial systems, which is why we are committed to delivering products that ensure seamless integration, superior performance, and long-lasting durability for our clients across the region and beyond.
The integrity of ANSI B16.36 flanges, particularly those with orifice bore designs, is rooted in their specific composition and mechanical strength. These flanges are typically forged from robust materials like carbon steel or stainless steel, providing excellent resistance to pressure and temperature. Through precise heat treatment and rigorous quality control, we ensure they achieve the required mechanical properties, including high tensile strength and optimal hardness. This guarantees they can withstand the significant stresses encountered in flow measurement and control applications without compromising their structural integrity.
Rizwan Flanges, a leading supplier in Manama, Bahrain, offers an extensive selection of ANSI B16.36 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.
| Size Range | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Main Types | Threaded / Forged / Plate /Screwed |
| Flange supporting material | Ring Joint, Gasket, Flange Bolts |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Most Common Types |
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| Production technique |
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| Connect Type/ Flange Face Type | Ring Type Joint (RTJ), Raised Face (RF),Large Male-Female (LMF), Flat Face (FF),Small Male-Female (SMF), Lap-Joint Face (LJF), Large Tongue & Groove, Small Tongue, Groove |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations Threaded Flange, Socketweld Flange, Slip-On Flange, Blind Flange, Weld Neck Flange |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Bending machine, Press machine, electric bevelling machine, Pushing Machine, Sand-blasting machine etc |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| NPS | O | C | R | X | A | Y | TT | No. of holes | Diameter of holes | Diameter of bolts | Diameter of bolt circle | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | 1″ | 4.88 | 1.5 | 2 | 2.12 | 1.32 | 3.25 | 01/04/07 | 4 | 0.69 | 5/8″ | 3.5 |
| Millimeter | 124 | 38.1 | 50.8 | 53.8 | 33.5 | 82.6 | 6.4 | 17.5 | 15.9 | 88.9 | ||
| Inch | 1 1/2″ | 6.12 | 1.5 | 2.88 | 2.75 | 1.9 | 3.38 | 01/04/07 | 4 | 0.81 | 3/4″ | 4.5 |
| Millimeter | 155.4 | 38.1 | 73.2 | 69.9 | 48.3 | 85.9 | 6.4 | 20.6 | 19.1 | 114.3 | ||
| Inch | 2″ | 6.5 | 1.5 | 3.62 | 3.31 | 2.38 | 3.38 | 01/04/07 | 8 | 0.69 | 5/8″ | 5 |
| Millimeter | 165.1 | 38.1 | 91.9 | 84.1 | 60.5 | 85.9 | 6.4 | 17.5 | 15.9 | 127 | ||
| Inch | 2 1/2″ | 7.5 | 1.5 | 4.12 | 3.94 | 2.88 | 3.5 | 01/04/07 | 8 | 0.81 | 3/4″ | 5.88 |
| Millimeter | 190.5 | 38.1 | 104.6 | 100.1 | 73.2 | 88.9 | 6.4 | 20.6 | 19.1 | 149.4 | ||
| Inch | 3″ | 8.25 | 1.5 | 5 | 4.62 | 3.5 | 3.5 | 03/08/07 | 8 | 0.81 | 3/4″ | 6.62 |
| Millimeter | 209.6 | 38.1 | 127 | 117.3 | 88.9 | 88.9 | 9.5 | 20.6 | 19.1 | 168.1 | ||
| Inch | 4″ | 10 | 1.5 | 6.19 | 5.75 | 4.5 | 3.62 | 01/02/07 | 8 | 0.81 | 3/4″ | 7.88 |
| Millimeter | 254 | 38.1 | 157.2 | 146.1 | 114.3 | 91.9 | 12.7 | 20.6 | 19.1 | 200.2 | ||
| Inch | 6″ | 12.5 | 1.5 | 8.5 | 8.12 | 6.63 | 3.94 | 01/02/07 | 12 | 0.88 | 3/4″ | 10.62 |
| Millimeter | 317.5 | 38.1 | 215.9 | 206.2 | 168.4 | 100.1 | 12.7 | 22.4 | 19.1 | 269.7 | ||
| Inch | 8″ | 15 | 1.62 | 10.62 | 10.25 | 8.63 | 4.38 | 01/02/07 | 12 | 1 | 7/8″ | 13 |
| Millimeter | 381 | 41.1 | 269.7 | 260.4 | 219.2 | 111.3 | 12.7 | 25.4 | 22.2 | 330.2 | ||
| Inch | 10″ | 17.5 | 1.88 | 12.75 | 12.62 | 10.75 | 4.62 | 01/02/07 | 16 | 1.12 | 1″ | 15.25 |
| Millimeter | 444.5 | 47.8 | 323.9 | 320.5 | 273.1 | 117.3 | 12.7 | 28.4 | 25.4 | 387.4 | ||
| Inch | 12″ | 20.5 | 2 | 15 | 14.75 | 12.75 | 5.12 | 01/02/07 | 16 | 1.25 | 1 1/8″ | 17.75 |
| Millimeter | 520.7 | 50.8 | 381 | 374.7 | 323.9 | 130 | 12.7 | 31.8 | 28.6 | 450.9 | ||
| Inch | 14″ | 23 | 2.12 | 16.25 | 16.75 | 14 | 5.62 | 01/02/07 | 20 | 1.25 | 1 1/8″ | 20.25 |
| Millimeter | 584.2 | 53.8 | 412.8 | 425.5 | 355.6 | 142.7 | 12.7 | 31.8 | 28.6 | 514.4 | ||
| Inch | 16″ | 25.5 | 2.25 | 18.5 | 19 | 16 | 5.75 | 01/02/07 | 20 | 1.38 | 1 1/4″ | 22.5 |
| Millimeter | 647.7 | 57.2 | 469.9 | 482.6 | 406.4 | 146.1 | 12.7 | 35.1 | 31.8 | 571.5 | ||
| Inch | 18″ | 28 | 2.38 | 21 | 21 | 18 | 6.25 | 01/02/07 | 24 | 1.38 | 1 1/4″ | 24.75 |
| Millimeter | 711.2 | 60.5 | 533.4 | 533.4 | 457.2 | 158.8 | 12.7 | 35.1 | 31.8 | 628.7 | ||
| Inch | 20″ | 30.5 | 2.5 | 23 | 23.12 | 20 | 6.38 | 01/02/07 | 24 | 1.38 | 1 1/4″ | 27 |
| Millimeter | 774.7 | 63.5 | 584.2 | 587.2 | 508 | 162.1 | 12.7 | 35.1 | 31.8 | 685.8 | ||
| Inch | 24″ | 36 | 2.75 | 27.25 | 27.62 | 24 | 6.62 | 01/02/07 | 24 | 1.62 | 1 1/2″ | 32 |
| Millimeter | 914.4 | 69.9 | 692.2 | 701.5 | 609.6 | 168.1 | 12.7 | 41.1 | 38.1 | 812.8 |
| Size in In. | Size in Millimeter | Outer Diameter | Flange Thickness | Hub OD | Weld Neck OD | WN Lengtd | RF Dia. | RF Height | PCD | Hole dia | No of Bolts | Bolt Size UNC | RF Stud Lengtd | Hole Size | ISO Stud Size | Weight in kg |
| A | B | C | D | E | F | G | H | I | ||||||||
| 1 | 25 | 125 | 36.6 | 54 | 33.4 | 81 | 50.8 | 2 | 88.9 | 6.4 | 4 | 5/8 | 125 | 3/4 | M16 | 4.5 |
| 1 1/2 | 40 | 155 | 36.6 | 70 | 48.3 | 84 | 73 | 2 | 114.3 | 6.4 | 4 | 3/4 | 135 | 7/8 | M20 | 6.5 |
| 2 | 50 | 165 | 36.6 | 84 | 60.3 | 84 | 92.1 | 2 | 127 | 6.4 | 8 | 5/8 | 125 | 3/4 | M16 | 7 |
| 2 1/2 | 65 | 190 | 36.6 | 100 | 73 | 87 | 104.8 | 2 | 149.2 | 6.4 | 8 | 3/4 | 135 | 7/8 | M20 | 7.5 |
| 3 | 80 | 210 | 36.6 | 117 | 88.9 | 87 | 127 | 2 | 168.3 | 9.5 | 8 | 3/4 | 135 | 7/8 | M20 | 9.4 |
| 4 | 100 | 255 | 36.6 | 146 | 114.3 | 90 | 157.2 | 2 | 200 | 12.7 | 8 | 3/4 | 135 | 7/8 | M20 | 13.2 |
| 6 | 150 | 320 | 36.6 | 206 | 168.3 | 98 | 215.9 | 2 | 269.9 | 12.7 | 12 | 3/4 | 135 | 7/8 | M20 | 14.6 |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 269.9 | 2 | 330.2 | 12.7 | 12 | 7/8 | 145 | 1 | M24 | 30 |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.3 | 12.7 | 16 | 1 | 165 | 1 1/8 | M27 | 41 |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 12.7 | 16 | 1 1/8 | 180 | 1 1/4 | M30 | 62 |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 412.8 | 2 | 514.4 | 12.7 | 20 | 1 1/8 | 185 | 1 1/4 | M30 | 84 |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 469.9 | 2 | 571.5 | 12.7 | 20 | 1 1/4 | 195 | 1 3/8 | M33 | 111 |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 12.7 | 24 | 1 1/4 | 205 | 1 3/8 | M33 | 138 |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 12.7 | 24 | 1 1/4 | 215 | 1 3/8 | M33 | 171 |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 12.7 | 24 | 1 |
ANSI B16.36 flanges are chiefly utilized in piping systems that need to measure flow or provide pressure relief. They are particularly intended to fit orifice plates for measuring flow rates of gases, liquids, or steam. Typically applied in oil and gas, chemical processing, power generation, and water treatment industries, they provide precise flow control and monitoring for various applications. Their ability to handle high temperatures and pressures makes them ideal for applications with high performance requirements. ANSI B16.36 flanges are also required in systems that require pressure taps and are often coupled with control systems for efficient process control.
Yes, we offer custom sizes for ANSI B16.36 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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