Hudson Flanges is a leading manufacturer and distributor specializing in high-quality 400 LBS flanges. With years of expertise, we provide robust and reliable flanges designed to withstand demanding industrial applications. Our 400 LBS flanges are available in a range of sizes and materials, ensuring optimal performance and durability in high-pressure environments. Whether you’re in the oil, gas, or chemical industry, Hudson Flanges offers precision-engineered products that meet rigorous standards. With a commitment to excellence and customer satisfaction, we deliver timely solutions for all your flange needs, making us the trusted choice for industrial-grade flanges.
400 LBS flanges are typically made from carbon steel, stainless steel, or alloy materials, ensuring strength and resistance to corrosion. They are designed to handle high-pressure systems, with a pressure rating of 400 lbs per square inch at room temperature. The mechanical properties include high tensile strength, good yield strength, and durability at elevated temperatures. Advantages of 400 LBS flanges include their reliability in heavy-duty applications, resistance to leaks, ease of installation, and long-lasting performance in high-pressure environments, making them ideal for industrial sectors like oil, gas, and chemical processing.
Hudson Flanges, a leading supplier in Midland, UK, offers an extensive selection of ANSI B16.5 Class 400 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 |
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Standards | B16.47 Series A & B, ANSI/ASME B16.5, BS4504, B16.48, EN-1092, BS 10, DIN, ANSI Flanges, BS Flanges, ASME Flanges, EN Flanges, DIN Flanges, GOST Flanges. |
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 Class 400 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 |
Specialized Manufacturer of |
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Standard | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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CLASS | Nominal Pipe Size | Slip On | Threaded | Socket Weld | Lap Joint | Blind | Weld Neck |
400 lb | ½ | 1 | 1 | 2 | 1 | 2 | 2 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 | |
1 | 2 | 2 | 2 | 2 | 2 | 3 | |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 | |
1½ | 3 | 3 | 3 | 3 | 4 | 4 | |
2 | 5 | 5 | 5 | 5 | 5 | 6 | |
2½ | 8 | 8 | 8 | 8 | 7 | 10 | |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 | |
3½ | 11 | 12 | 11 | 11 | 13 | 12 | |
4 | 13 | 13 | 13 | 13 | 17 | 16.5 | |
5 | 15 | 15 | 15 | 15 | 20 | 21 | |
6 | 19 | 19 | 19 | 19 | 27 | 26 | |
8 | 30 | 30 | 30 | 30 | 47 | 42 | |
10 | 43 | 43 | 43 | 43 | 70 | 54 | |
12 | 64 | 64 | 64 | 64 | 123 | 88 | |
14 | 90 | 90 | 90 | 105 | 140 | 114 | |
16 | 106 | 98 | 98 | 140 | 180 | 140 | |
18 | 130 | 130 | 130 | 160 | 220 | 165 | |
20 | 165 | 165 | 165 | 195 | 285 | 197 | |
22 | 185 | 185 | 185 | 245 | 355 | 225 | |
24 | 220 | 220 | 220 | 275 | 430 | 268 |
400 LBS flanges are widely used in high-pressure piping systems across various industries, including oil and gas, chemical processing, power generation, and water treatment. They are essential for connecting pipes, valves, pumps, and other equipment, ensuring leak-proof and secure joints. These flanges are ideal for applications that require robust performance under extreme pressure and temperature conditions. Common uses include steam lines, hydraulic systems, high-pressure gas lines, and refineries, where their durability, strength, and resistance to corrosion provide reliable, long-lasting connections in demanding environments.
Yes, we offer custom sizes for ANSI B16.5 Class 400 Flanges 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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