Reducing flanges of the highest calibre are available from Harsh Flanges, a reputable manufacturer and supplier of flanges with headquarters in Mumbai, India, for joining pipes of various diameters. Manufactured in compliance with international standards such as ANSI, ASME, and DIN, our reducing flanges are widely used in industries that require a reliable and space-saving piping transition. These flanges are precisely engineered to guarantee long service life, excellent dimensional accuracy, and leak-proof performance. Harsh Flanges serves customers in the power, chemical, water treatment, and oil and gas industries in India and abroad with its sophisticated manufacturing capabilities and stringent quality control.
Cutting back Stainless steel (304/316), alloy steel (F11/F22), and carbon steel (A105) are among the materials used to make flanges, depending on the needs of the application. They are strong and resistant to corrosion because of their chemical makeup, which consists of iron, carbon, chromium, nickel, and molybdenum. These flanges usually have yield strengths between 200 and 450 MPa and tensile strengths between 450 and 620 MPa. Reducing flanges, which are made to join pipes of different sizes, provide outstanding pressure-handling capability, dimensional stability, and simplicity of installation without sacrificing the system’s effectiveness or integrity.
| 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 |
Harsh Flanges, a leading supplier in Mumbai, India, 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.
Cutting back Industries that need to change the size of pipes in a piping system frequently use flanges. Pipelines for gas and oil, chemical processing facilities, water distribution systems, power plants, and shipbuilding are examples of common uses. By facilitating a seamless transition between pipe diameters, these flanges reduce turbulence and flow restrictions. Reducing flanges simplify design and assembly by doing away with the need for separate reducers and flanges, making them perfect for installations with limited space. They are dependable in a variety of industrial settings and are particularly helpful in pressure-rated systems where reducing components must preserve strength and sealing integrity under changing operating conditions.
| 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 Harsh Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@harshflanges.co.in.
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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