Based in Houston, Texas, Shawn Flanges is a top producer and supplier of high-end stainless steel reducing flanges. Shawn Flanges, which is renowned for its engineering prowess and commitment to global standards, specialises in offering flanges that guarantee a smooth connection between pipes of various diameters. Their reducing flanges are made to support different flow requirements while preserving system integrity. Shawn Flanges provides services to the petrochemical, power generation, and water treatment industries in the United States and abroad with its sophisticated manufacturing capabilities and customer-focused approach. They have a strong reputation in the piping industry thanks to their dedication to accuracy, robustness, and prompt delivery.
Reducing Stainless Steel Strong alloys comprising iron, chromium (18–20%), nickel (8–10.5%), and trace elements such as carbon, manganese, and molybdenum are used to make flanges. These elements improve strength, weldability, and resistance to corrosion. Mechanically, these flanges have excellent elongation properties of about 35–50%, yield strengths between 170 and 310 MPa, and tensile strengths between 485 and 620 MPa. Reducing flanges are perfect for demanding industrial settings because they are made to function under a range of pressures and temperatures and provide long-term dependability as well as resistance to oxidation, mechanical stress, and chemical exposure.
| Size | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
|---|---|
| Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Pressure Rating ANSI | Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production Technique | Forged, Heat treated and machined |
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF) |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Material | Nickel Alloy Reducing Flange, Incoloy Reducing Flange, Alloy 20 Reducing Flange, AISI 4130 Reducing Flange, SMO 254 Reducing Flange, Stainless Steel Reducing Flange, Inconel Reducing Flange, Titanium Reducing Flange, Brass Reducing Flange, Super Duplex Reducing Flange, Copper Nickel Reducing Flange, Hastelloy Reducing Flange, Monel Reducing Flange, Duplex Steel Reducing Flange. |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| Flanges pressure rating in psig for Reducing Flange ASME | |||||||
| Temperature (F°) | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
| -20 to 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
| 200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
| 300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
| 400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
| 500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
| 600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
| 650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
| 700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
| 750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
| 800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
| 850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
| 900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
| 950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
| 1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
Shawn Flanges, a leading supplier in Houston, USA, offers an extensive selection of Reducing 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.
Reducing Stainless Steel Flanges are widely used to safely and effectively join pipes of various diameters. In systems where size transitions are necessary due to flow rates, pressure variations, or spatial constraints, their use is essential. These flanges are perfect for use in power generation facilities, water treatment plants, chemical processing facilities, and oil and gas pipelines. They reduce turbulence and pressure loss by offering a safe, leak-proof connection. A wide range of industrial applications can benefit from the operational efficiency and system durability that stainless steel’s corrosion-resistant qualities provide, making it appropriate for both high-temperature and corrosive environments.
| Nominal Pipe Size | Thickness | MIN. | Diameter | MIN. | Diameter | MIN. | WELDING | NECK | JOINT |
| 32 | 38.5 | 44.5 | 63.5 | 43.7 | 184 | 43.3 | 52 | 95.2 | 52 |
| 25 | 35.0 | 36.0 | 50.8 | 34.9 | 159 | 34.5 | 48 | 88.9 | 48 |
| 15 | 30.5 | 23.5 | 34.9 | 22.9 | 133 | 22.2 | 40 | 73.0 | 40 |
| 3/4 | 1.25 | 1.14 | 1.69 | 1.11 | 5.50 | 1.09 | 1.69 | 3.12 | 1.69 |
| 1/2 | 1.19 | 0.93 | 1.38 | .90 | 5.25 | 0.88 | 1.56 | 2.88 | 1.56 |
| 25 | 35.0 | 36.0 | 50.8 | 34.9 | 159 | 34.5 | 48 | 88.9 | 48 |
| 20 | 32.0 | 29.0 | 42.9 | 28.2 | 140 | 27.8 | 43 | 79.4 | 43 |
| 1 | 1.38 | 1.41 | 2.00 | 1.38 | 6.25 | 1.36 | 1.88 | 3.50 | 1.88 |
| 1 1/4 | 1.50 | 1.75 | 2.50 | 1.72 | 7.25 | 1.70 | 2.06 | 3.75 | 2.06 |
| 1 1/2 | 1.75 | 1.99 | 2.88 | 1.97 | 8.00 | 1.95 | 2.38 | 4.38 | 2.38 |
| 40 | 44.5 | 50.5 | 73.0 | 50.0 | 203 | 49.6 | 60 | 111.4 | 60 |
| 2 | 2.00 | 2.50 | 3.62 | 2.46 | 9.25 | 2.44 | 2.75 | 5.00 | 2.75 |
| 100 | 76.5 | 118 | 157.2 | 116.8 | 356 | 116.1 | 108 | 190.5 | 108 |
| 2 1/2 | 2.25 | 3.00 | 4.12 | 2.97 | 10.50 | 2.94 | 3.12 | 5.62 | 3.12 |
| 65 | 57.5 | 76 | 104.8 | 75.4 | 267 | 74.6 | 79 | 142.9 | 79 |
| 3 | 2.62 | 3.63 | 5.00 | 3.60 | 12.00 | 3.57 | 3.62 | 6.62 | 3.62 |
| 50 | 51.0 | 63.5 | 92.1 | 62.5 | 235 | 61.9 | 70 | 127.0 | 70 |
| 80 | 67.0 | 92 | 127.0 | 91.4 | 305 | 90.7 | 92 | 168.2 | 92 |
| 4 | 3.00 | 4.63 | 6.19 | 4.60 | 14.00 | 4.57 | 4.25 | 7.50 | 4.25 |
| 5 | 3.62 | 5.69 | 7.31 | 5.69 | 16.50 | 5.66 | 5.12 | 9.00 | 5.12 |
| 125 | 92.5 | 145 | 185.7 | 144.5 | 419 | 143.7 | 130 | 228.6 | 130 |
| 6 | 4.25 | 6.75 | 8.50 | 6.75 | 19.00 | 6.72 | 6.0 | 10.75 | 6.0 |
| 150 | 108.0 | 171 | 215.9 | 171.4 | 483 | 170.7 | 152 | 273.0 | 152 |
| 8 | 5.00 | 8.75 | 10.62 | 8.75 | 21.75 | 8.72 | 7.0 | 12.50 | 7.0 |
| 200 | 127.0 | 222 | 269.9 | 222.2 | 552 | 221.5 | 178 | 317.5 | 178 |
| 10 | 6.50 | 10.88 | 12.75 | 10.92 | 26.50 | 10.88 | 9.0 | 16.50 | 9.0 |
| 250 | 165.5 | 276 | 323.8 | 277.4 | 675 | 276.2 | 229 | 419.4 | 229 |
| 12 | 7.25 | 12.94 | 15.00 | 12.92 | 30.00 | 12.88 | 10.0 | 18.25 | 10.0 |
| 300 | 184.5 | 329 | 381.0 | 328.2 | 760 | 327.0 | 254 | 463.6 | 254 |
| Nominal Size | Type | Ø A | D | Liner Thickness | |
| DN1 | DN2 | ||||
| In. | In. | mm | mm | mm | |
| 3/4″ | 1/2″ | 1 | 98.5 | 30 | 5.0 |
| 1″ | 1/2″ | 1 | 108 | 30 | 5.0 |
| 1″ | 3/4″ | 1 | 108 | 30 | 5.0 |
| 1.1/2″ | 1/2″ | 1 | 127 | 30 | 5.0 |
| 1.1/2″ | 3/4″ | 1 | 127 | 30 | 5.0 |
| 1.1/2″ | 1″ | 1 | 127 | 30 | 5.0 |
| 2″ | 1/2″ | 3 | 152 | 30 | 5.0 |
| 2″ | 3/4″ | 2 | 152 | 30 | 5.0 |
| 2″ | 1″ | 2 | 152 | 30 | 5.0 |
| 2″ | 1.1/2″ | 1 | 152 | 30 | 5.0 |
| 3″ | 3/4″ | 3 | 190.5 | 35 | 5.0 |
| 3″ | 1″ | 3 | 190.5 | 35 | 5.0 |
| 3″ | 1.1/2″ | 2 | 190.5 | 35 | 5.0 |
| 3″ | 2″ | 1 | 190.5 | 35 | 5.0 |
| 4″ | 3/4″ | 3 | 228.6 | 35 | 5.0 |
| 4″ | 1″ | 3 | 228.6 | 35 | 5.0 |
| 4″ | 1.1/2″ | 3 | 228.6 | 35 | 5.0 |
| 4″ | 2″ | 3 | 228.6 | 35 | 5.0 |
| 4″ | 3″ | 2 | 228.6 | 35 | 5.0 |
| 6″ | 3/4″ | 3 | 280 | 40 | 5.0 |
| 6″ | 1″ | 3 | 280 | 40 | 5.0 |
| 6″ | 1.1/2″ | 3 | 280 | 40 | 5.0 |
| 6″ | 2″ | 3 | 280 | 40 | 5.0 |
| 6″ | 3″ | 3 | 280 | 40 | 5.0 |
| 6″ | 4″ | 2 | 280 | 40 | 5.0 |
| 8″ | 1″ | 3 | 343 | 35 | 5.0 |
| 8″ | 1.1/2″ | 3 | 343 | 35 | 5.0 |
| 8″ | 2″ | 3 | 343 | 40 | 5.0 |
| 8″ | 3″ | 3 | 343 | 40 | 5.0 |
| 8″ | 4″ | 3 | 343 | 40 | 5.0 |
| 8″ | 6″ | 2 | 343 | 40 | 5.0 |
| 10″ | 1″ | 3 | 406 | 35 | 2.5 |
| 10″ | 1.1/2″ | 3 | 406 | 35 | 2.5 |
| 10″ | 2″ | 3 | 406 | 35 | 2.5 |
| 10″ | 3″ | 3 | 406 | 35 | 2.5 |
| 10″ | 4″ | 3 | 406 | 35 | 2.5 |
| 10″ | 6″ | 3 | 406 | 35 | 2.5 |
| 10″ | 8″ | 2 | 406 | 35 | 3.5 |
| 12″ | 1″ | 3 | 483 | 35 | 3.5 |
| 12″ | 1.1/2″ | 3 | 483 | 35 | 3.5 |
| 12″ | 2″ | 3 | 483 | 35 | 3.5 |
| 12″ | 3″ | 3 | 483 | 35 | 3.5 |
| 12″ | 4″ | 3 | 483 | 35 | 3.5 |
| 12″ | 6″ | 3 | 483 | 35 | 3.5 |
| 12″ | 8″ | 3 | 483 | 35 | 3.5 |
| 12″ | 10″ | 2 | 483 | 35 | 3.5 |
| 14″ | 12″ | 1 | 533 | 40 | 3.5 |
| 16″ | 12″ | 3 | 597 | 40 | 3.5 |
| 16″ | 14″ | 2 | 597 | 35 | 3.5 |
Yes, we offer custom sizes for Reducing Flanges to meet specific project needs. Our team at Shawn Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@shawnflanges.us.
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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