BS 4504 is a British standard for flanges that are used in conjunction with pipes, valves and fittings. The flanges produced according to standard BS 4504 are PN designated. Per the standard, different alloys such as steel, cast iron and copper alloy could be used o manufacture the BS 4504 Flanges. The PN for bs 4504 forged flange, which is an acronym for Pressure Nominale ranges between PN 2.5 to PN 40. Whereas the flanges are produced with the size ranging up to DN4000. Apart from the bs 4504 pn10 flange dimensions, the BS 4504 also specifies other parameters such as bolt sizes, tolerances, Facings, threading, marking and materials for bolting. Moreover, the standard also takes into consideration flange materials with associated pressure/temperature ratings
BS 4504 Flanges
BS 4504 PN16 Flanges
BS 4504 Flanges Standards
Similar to the DIN and JIS standards, the pressure class rating for bs 4504 pn16 flanges ranges from class 150 to class 2500. In instances where added corrosion resistance properties are required, buyers may place an order to get the surface of these flanges treated. Some of the more popular finishes include hot dip galvanization, anti-rust finish and zinc coating. Generally treating the surface of BS 4504 PN16 Flanges to a hot dip galvanization process yields much better result in terms of longevity, performance as well as corrosion resistance characteristics
Table of Content
BS 4504 Flanges Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
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BS 4504 Flanges 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 |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
BS 4504 Flanges Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
BS 4504 Flanges Pressure Calculation in 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 |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Most common types of BS 4504 Flanges | forged / Threaded / Screwed / Plate |
Production technique |
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Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove |
Special design | As per your drawing
AS, ANSI, BS, DIN and JIS |
Origin | Indian / West Europe / Japan / USA / Korean |
Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. BS 4504 Flanges: -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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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 |
DN | D | C1 | C2 | H1 | H2 | H3 | R | A | N1 | N2 | B1 | d1 | f1 |
10 | 90 | 14 | 14 | 20 | 35 | 6 | 3 | 17,2 | 28 | 30 | 18 | 40 | 2 |
15 | 95 | 14 | 14 | 20 | 35 | 6 | 3 | 21,3 | 32 | 35 | 22 | 45 | 2 |
20 | 105 | 14 | 14 | 24 | 38 | 6 | 4 | 26,9 | 39 | 45 | 27,5 | 58 | 2 |
25 | 115 | 16 | 16 | 24 | 38 | 6 | 4 | 33,7 | 46 | 52 | 34,5 | 68 | 2 |
32 | 140 | 18 | 16 | 26 | 40 | 6 | 5 | 42,4 | 56 | 60 | 43,5 | 78 | 2 |
40 | 150 | 18 | 16 | 26 | 42 | 7 | 5 | 48,3 | 64 | 70 | 49,5 | 88 | 3 |
50 | 165 | 20 | 18 | 28 | 45 | 8 | 5 | 60,3 | 74 | 84 | 61,5 | 102 | 3 |
65 | 185 | 20 | 18 | 32 | 45 | 10 | 6 | 76,1 | 92 | 104 | 77,5 | 122 | 3 |
80 | 200 | 20 | 20 | 34 | 50 | 10 | 6 | 88,9 | 110 | 118 | 90,5 | 138 | 3 |
100 | 220 | 22 | 20 | 40 | 52 | 12 | 6 | 114,3 | 130 | 140 | 116 | 162 | 3 |
125 | 250 | 22 | 22 | 44 | 55 | 12 | 6 | 139,7 | 158 | 168 | 141,5 | 188 | 3 |
150 | 285 | 24 | 22 | 44 | 55 | 12 | 8 | 168,3 | 184 | 195 | 170,5 | 212 | 3 |
200 | 340 | 26 | 24 | 44 | 62 | 16 | 8 | 219,1 | 234 | 246 | 221,5 | 268 | 3 |
250 | 405 | 29 | 26 | 46 | 70 | 16 | 10 | 273 | 288 | 298 | 276,5 | 320 | 3 |
300 | 460 | 32 | 28 | 46 | 78 | 16 | 10 | 323,9 | 342 | 350 | 327,5 | 378 | 4 |
350 | 520 | 35 | 30 | 57 | 82 | 16 | 10 | 355,6 | 390 | 400 | 359 | 438 | 4 |
400 | 580 | 38 | 32 | 63 | 85 | 16 | 10 | 406,4 | 444 | 456 | 411,0 | 490 | 4 |
450 | 640 | 42 | 34 | 68 | 87 | 16 | 12 | 457,0 | 490 | 502 | 462,0 | 550 | 4 |
500 | 715 | 46 | 34 | 73 | 90 | 16 | 12 | 508,0 | 546 | 559 | 513,5 | 610 | 4 |
600 | 840 | 52 | 36 | 83 | 95 | 18 | 12 | 610,0 | 650 | 658 | 616,5 | 725 | 5 |
700 | 910 | 60 | 36 | 83 | 100 | 18 | 12 | 711,0 | 750 | 760 | – | 795 | 5 |
800 | 1025 | 68 | 38 | 90 | 105 | 20 | 12 | 813,0 | 848 | 864 | – | 900 | 5 |
900 | 1125 | 76 | 40 | 94 | 110 | 20 | 12 | 914,0 | 948 | 968 | – | 1000 | 5 |
1000 | 1255 | 84 | 42 | 100 | 120 | 22 | 12 | 1016,0 | 1056 | 1072 | – | 1115 | 5 |
1200 | 1485 | 98 | 48 | – | 130 | 30 | 12 | 1220,0 | 1260 | – | – | 1330 | 5 |
1400 | 1685 | – | 52 | – | 145 | 30 | 12 | 1420,0 | 1465 | – | – | 1530 | 5 |
1600 | 1930 | – | 58 | – | 160 | 35 | 12 | 1620,0 | 1668 | – | – | 1750 | 5 |
DN | D | C1 | C2 | H1 | H2 | H3 | R | A | N1 | N2 | B1 | d1 | f1 |
BS 4504 Weld Neck Flanges | US $0.5-1000 / Piece (FOB Price) |
BS 4504 Threaded Flanges | US $300-500 / Ton (FOB Price) |
BS 4504 forged Flanges | US $1-900 / Piece (FOB Price) |
BS 4504 Socket Weld Flanges | US $0.5-1000 / Piece (FOB Price) |
BS 4504 Blind Flanges | US $1-300 / Piece (FOB Price) |