Based in Midland, UK, Hudson Flange is a reliable maker and supplier of top-notch flanges, which include slip-on welding raised face (SWRF) flanges, Years of technical experience, our of different technical specifications Precision engineering solutions tailored for satisfaction We deliver for, which guarantees reliability and sustainability. Our dedication to quality and adherence to global best practices has established us as the go-to company for customers seeking strong and effective flange solutions. Rely on Hudson Flange for the highest-quality products and unmatched customer support across the UK and beyond.
SWRF (Slip-On Weld Raised Face) flanges are normally constructed of stainless steel, carbon steel, or steel alloys that are highly durable and resistant to corrosion Their mechanical characteristics consist of strength high tensile strength, good ductility, and moderate pressure and temperature resistance They are well suited for simple installation, since prior to welding Pipes may be slipped inside flanges for precise alignment and tight seal Economical and flexible, SWRF flanges are best suited to systems requiring periodic maintenance, ensuring consistent performance in the oil, gas, petrochemical and other industries.
| 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 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 | Inconel SWRF Flange, Incoloy SWRF Flange, Monel SWRF Flange, Hastelloy SWRF Flange, Copper Nickel SWRF Flange, Alloy 20 SWRF Flange, Nickel Alloy SWRF Flange, AISI 4130 SWRF Flange, Titanium SWRF Flange, Brass SWRF Flange, Stainless Steel SWRF Flange, Duplex Steel SWRF Flange, Super Duplex SWRF Flange, SMO 254 SWRF 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 SWRF 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.
SWRF (Slip-On Weld Raised Face) flanges are extensively employed in piping systems in oil and gas-, petrochemical, water treatment, power generation etc. They comprise pipes, valves, pumps, with other equipment collectively, and contracts under moderate pressure and temperature conditions -Proof, long-lasting joints guarantee installation, Since it is easily configured also makes them ideal for applications that need frequent inspection, maintenance, or alteration. SWRF flanges are suitable for non-critical services, such as water transportation, gas distribution and low pressure hot water systems, offering a cost-effective and dependable solution for numerous industrial systems.
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | |||||||||
| 1/2 | 15 | 90 | 9.6 | 30 | 14 | 34.9 | 2 | 10 | 60.3 | 22.2 | 4 | 1/2 | 50 | 55 | 5/8 | M14 | 0.8 |
| 3/4 | 20 | 100 | 11.2 | 38 | 14 | 42.9 | 2 | 11 | 69.9 | 27.7 | 4 | 1/2 | 50 | 65 | 5/8 | M14 | 0.9 |
| 1 | 25 | 110 | 12.7 | 49 | 16 | 50.8 | 2 | 13 | 79.4 | 34.5 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 0.9 |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 19 | 63.5 | 2 | 14 | 88.9 | 43.2 | 4 | 1/2 | 55 | 70 | 5/8 | M14 | 1.4 |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 21 | 73 | 2 | 16 | 98.4 | 49.5 | 4 | 1/2 | 65 | 70 | 5/8 | M14 | 1.4 |
| 2 | 50 | 150 | 17.5 | 78 | 24 | 92.1 | 2 | 17 | 120.7 | 61.9 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 2.3 |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 27 | 105 | 2 | 19 | 139.7 | 74.6 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 3 | 80 | 190 | 22.3 | 108 | 29 | 127 | 2 | 21 | 152.4 | 90.7 | 4 | 5/8 | 75 | 90 | 3/4 | M16 | 3.7 |
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Flange Length | RF Dia. | RF Height | Socket Depth | PCD | Socket Bore | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | J | |||||||||
| 1/2 | 15 | 95 | 12.7 | 38 | 21 | 34.9 | 2 | 10 | 66.7 | 22.2 | 4 | 1/2 | 55 | 65 | 5/8 | M14 | 1.2 |
| 3/4 | 20 | 115 | 14.3 | 48 | 24 | 42.9 | 2 | 11 | 82.6 | 27.7 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 | 25 | 125 | 15.9 | 54 | 25 | 50.8 | 2 | 13 | 88.9 | 34.5 | 4 | 5/8 | 65 | 75 | 3/4 | M16 | 1.4 |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 25 | 63.5 | 2 | 14 | 98.4 | 43.2 | 4 | 5/8 | 70 | 85 | 3/4 | M16 | 1.8 |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 29 | 73 | 2 | 16 | 114.3 | 49.5 | 4 | 3/4 | 75 | 90 | 7/8 | M20 | 2.7 |
| 2 | 50 | 165 | 20.7 | 84 | 32 | 92.1 | 2 | 17 | 127 | 61.9 | 8 | 5/8 | 75 | 90 | 3/4 | M16 | 3.2 |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 37 | 105 | 2 | 19 | 149.2 | 74.6 | 8 | 3/4 | 85 | 100 | 7/8 | M20 | 4.6 |
| 3 | 80 | 210 | 27 | 117 | 41 | 127 | 2 | 21 | 168.3 | 90.7 | 8 | 3/4 | 90 | 110 | 7/8 | M20 | 5.9 |
| Pipe Size | 150 # | 300 # | 600 # | 900 # | 1500 # | 2500 # | ||||||||||||
| WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | WN | SO | BLD | |
| 1/2″ | 2 | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | SEE 1500 # WEIGHTS | 5 | 4 | 4 | 7 | 7 | 7 | ||
| 3/4″ | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 3 | 3 | SEE 1500 # WEIGHTS | 6 | 5 | 6 | 8 | 8 | 8 | ||
| 1″ | 3 | 2 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | SEE 1500 # WEIGHTS | 9 | 8 | 8 | 12 | 11 | 11 | ||
| 1 1/2″ | 4 | 3 | 3 | 7 | 6 | 6 | 8 | 7 | 8 | SEE 1500 # WEIGHTS | 13 | 12 | 13 | 25 | 22 | 23 | ||
| 2″ | 6 | 5 | 5 | 9 | 7 | 8 | 12 | 9 | 10 | SEE 1500 # WEIGHTS | 25 | 25 | 25 | 42 | 37 | 39 | ||
| 2 1/2″ | 8 | 7 | 7 | 12 | 10 | 12 | 18 | 13 | 15 | SEE 1500 # WEIGHTS | 36 | 36 | 35 | 52 | 55 | 56 | ||
| 3″ | 10 | 8 | 9 | 15 | 13 | 16 | 23 | 16 | 20 | 31 | 26 | 29 | 48 | 48 | 48 | 94 | 83 | 86 |
| 4″ | 15 | 13 | 17 | 25 | 22 | 27 | 42 | 37 | 41 | 53 | 53 | 54 | 73 | 73 | 73 | 145 | 125 | 130 |
| 5″ | 19 | 15 | 20 | 32 | 28 | 35 | 68 | 63 | 68 | 86 | 83 | 87 | 130 | 130 | 140 | 245 | 210 | 225 |
| 6″ | 24 | 19 | 26 | 42 | 39 | 50 | 81 | 80 | 86 | 110 | 110 | 115 | 165 | 165 | 160 | 380 | 325 | 345 |
| 8″ | 39 | 30 | 45 | 67 | 58 | 81 | 120 | 115 | 140 | 175 | 170 | 200 | 275 | 260 | 300 | 580 | 485 | 530 |
| 10″ | 52 | 43 | 70 | 91 | 81 | 124 | 190 | 170 | 230 | 260 | 245 | 290 | 455 | 435 | 510 | 1075 | 930 | 1025 |
| 12″ | 80 | 64 | 110 | 140 | 115 | 185 | 225 | 200 | 295 | 325 | 325 | 415 | 690 | 580 | 690 | 1525 | 1100 | 1300 |
| 14″ | 110 | 90 | 140 | 180 | 165 | 250 | 280 | 230 | 355 | 400 | 400 | 520 | 940 | NA | 975 | NA | NA | NA |
| 16″ | 140 | 98 | 180 | 250 | 190 | 295 | 390 | 330 | 495 | 495 | 425 | 600 | 1250 | NA | 1300 | NA | NA | NA |
| 18″ | 150 | 130 | 220 | 320 | 250 | 395 | 475 | 400 | 630 | 680 | 600 | 850 | 1625 | NA | 1750 | NA | NA | NA |
| 20″ | 180 | 165 | 285 | 400 | 315 | 505 | 590 | 510 | 810 | 830 | 730 | 1075 | 2050 | NA | 2225 | NA | NA | NA |
| 22″ | 225 | 185 | 355 | 465 | 370 | 640 | 720 | 590 | 1000 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 24″ | 260 | 220 | 430 | 580 | 475 | 790 | 830 | 730 | 1250 | 1500 | 1400 | 2025 | 3325 | NA | 3625 | NA | NA | NA |
Yes, we offer custom sizes for SWRF 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.
Copyright 2024 Hudson Flanges, All rights reserved
