Hudson Flanges is a leading manufacturer in Midland, UK, of high quality flanges for a variety of industrial applications. Known for their accuracy and durability, they offer a wide range of flanges including Weldo flanges and Nipo flanges. These flanges are designed to provide a secure leak-proof connection to piping systems. Hudson flanges cater to industries requiring reliable and efficient flange solutions, making them reliable for customers demanding high quality products in the UK and beyond.
Weldo flanges, also known as NIPO flanges, are primarily made of carbon steel, stainless steel, or steel alloys, depending on the application. These flanges are welded to pipe or fittings to make a secure and leak-proof connection. Technical properties of weldo flanges include high strength, durability, and high pressure and heat resistance. The advantages of using weldo flanges are their ability to withstand heavy loads, easy installation without bolts, and suitable for high pressure and high temperature systems, ensuring that they are reliable and low-maintenance work in industrial piping systems
| 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), Weldo Face (FF) |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| 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 | Alloy 20 Weldo Flange, Brass Nipo Flange, Copper Nickel Weldo Flange, Stainless Steel Weldo Flange, AISI 4130 Weldo Flange, Inconel Weldo Flange, Titanium Weldo Flange, Monel Weldo Flange, Super Duplex Nipo Flange, Duplex Steel Nipo Flange, Incoloy Nipo Flange, Hastelloy Weldo Flange, SMO 254 Weldo Flange, Nickel Alloy Nipo Flange. |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Hudson Flanges, a leading supplier in Midland, UK, offers an extensive selection of Weldo Flange / Nipo Flange, 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.
Weldo flanges, or Nipo flanges, are commonly used in pipeline systems to connect pipes, valves, and equipment. They are designed for applications where welding necks for pipe inserts are required. The flange has a stub end that can be welded to the pipe, providing a safe and durable connection. These flanges are widely used in oil and gas chemistry, power plants and water treatment plants to provide strength, durability and reliability under high pressure and high temperature conditions
| NPS | A | B | C | D |
| 1/2 | 3/4 19.05 | 1.3/8 34.93 | 15/16 23.81 | 5/8 15.88 |
| 3/4 | 7/8 22.23 | 1.5/8 41.28 | 1.3/16 30.16 | 13/16 20.64 |
| 1 | 1.1/16 26.99 | 2 50.80 | 1.7/16 36.51 | 1.1/32 26.19 |
| 1.1/4 | 1.1/4 31.75 | 2.3/8 60.3 | 1.3/4 44.45 | 1.3/8 34.93 |
| 1.1/2 | 1.5/16 33.34 | 2.7/8 73 | 2 50.80 | 1.5/8 41.28 |
| 2 | 1.1/2 38.10 | 3.1/2 88.90 | 2.9/16 65.09 | 2.1/16 52.39 |
| 2.1/2 | 1.5/8 41.28 | 4.1/16 103.19 | 3 76.20 | 2.7/16 61.91 |
| 3 | 1.3/4 44.45 | 4.13/16 122.24 | 3.11/16 93.66 | 3.1/16 77.79 |
| 3.1/2 | 2 50.80 | 5.3/8 136.53 | 3.7/8 98.43 | 3.9/16 90.49 |
| 4 | 2 50.80 | 6 152.40 | 4.3/4 120.65 | 4 101.60 |
| 5 | 2.1/4 57.15 | 7.1/8 180.98 | 5.9/16 141.29 | 5.1/16 128.59 |
| 6 | 2.3/8 60.3 | 8.1/2 215.90 | 6.11/16 169.86 | 6.1/16 153.99 |
| 8 | 2.3/4 69.85 | 10.3/8 263.53 | 8.11/16 220.66 | 7.15/16 201.61 |
| 10 | 3.1/16 77.79 | 12.9/16 319.09 | 10.13/16 274.64 | 10 254.00 |
| 12 | 3.3/8 85.73 | 14.7/8 377.83 | 12.13/16 325.44 | 12 304.80 |
| 14 | 3.1/2 88.90 | 16.1/8 409.58 | 14.1/16 357.19 | 13.1/4 336.55 |
| 16 | 3.11/16 93.66 | 18.1/4 463.55 | 16.1/16 407.99 | 15.1/4 387.35 |
| 18 | 4.1/16 103.19 | 20.3/4 527.05 | 18.5/8 473.08 | 17.1/4 438.15 |
| 20 | 4.5/8 117.48 | 23.1/16 585.79 | 20.1/16 509.59 | 19.1/4 488.95 |
| 24 | 5.3/8 136.53 | 27.7/8 708.03 | 25.1/8 638.18 | 23.1/4 590.55 |
| NPS | A | B | C | D |
| RATING | NOMINAL PIPE SIZE FROM 3/4″ TO 36″ | |||||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 0,9 | |||
| 150# | XS | 13,8 | 17,6 | 88,9 | 11,2 | 0,9 |
| 160 | 11,7 | 11,7 | 0,9 | |||
| XXS | 6,4 | 6,4 | 0,9 | |||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 1,2 | |||
| 300# | XS | 13,8 | 17,6 | 95,3 | 14,3 | 1,2 |
| 160 | 11,7 | 11,7 | 1,2 | |||
| XXS | 6,4 | 6,4 | 1,2 | |||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 1,3 | |||
| 600# | XS | 13,8 | 17,6 | 95,3 | 14,3 | 1,3 |
| 160 | 11,7 | 11,7 | 1,3 | |||
| XXS | 6,4 | 6,4 | 1,3 | |||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 2,4 | |||
| 900# | XS | 13,8 | 17,6 | 120,6 | 22,4 | 2,4 |
| 160 | 11,7 | 11,7 | 2,4 | |||
| XXS | 6,4 | 6,4 | 2,4 | |||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 2,4 | |||
| 1500# | XS | 13,8 | 17,6 | 120,6 | 22,4 | 2,4 |
| 160 | 11,7 | 11,7 | 2,4 | |||
| XXS | 6,4 | 6,4 | 2,4 | |||
| Bore schedule | B | C | D | E | Weight [kg] | |
| STD | 15,8 | 18,5 | 3,6 | |||
| 2500# | XS | 13,8 | 17,6 | 133,4 | 30,2 | 3,6 |
| 160 | 11,7 | 11,7 | 3,6 | |||
| XXS | 6,4 | 6,4 | 3,6 | |||
Yes, we offer custom sizes for Weldo Flange / Nipo Flange to meet specific project needs. Our team at Hudson Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@hudsonflanges.co.uk.
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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