FLANGE DIMENSIONS TABLE SIZE (DN) 700 (28″)
| Class/Table | Flange O.D. | PCD | Bolts | Bolt Size | Hole Size | Minimum Flange Thickness* | |||
|---|---|---|---|---|---|---|---|---|---|
| Cast Iron | Ductile Iron | Copper Alloy | Steel | ||||||
| ASME 150 B16.47 Series A Supersedes MSS-SP44 | 927.2mm | 806.4mm | 28 | 35mm | 68.4mm | ||||
| ASME 300 B16.47 Series A Supersedes MSS-SP44 | 1035.1mm | 939.8mm | 28 | 44.4mm | 85.9mm WN
90.5mm BL |
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| ASME Class 600 B16.5 B16.47 Series A Supersedes MSS-SP44 | 1073.2mm | 965.2mm | 28 | 53.8mm | 111.3mm WN
131.9mm BL |
||||
| ASME Class 900 B16.5 B16.47 Series A Supersedes MSS-SP44 | 1168.5mm | 1022.3mm | 20 | 79.2mm | 142.8mm WN
171.5mm BL |
||||
| ASME 150 B16.47 Series B Supersedes API-605 | 836.7mm | 795.2mm | 40 | 23mm | 44.5mm WN
47.8 BL |
||||
| ASME 300 B16.47 Series B Supersedes API-605 | 920.8mm | 857.2mm | 36 | 35mm | 89mm | ||||
| ASME Class 600 B16.5 B16.47 Series B Supersedes API-605 | 952.6mm | 863.8mm | 28 | 47.7mm | 115.9mm | ||||
| ASME Class 900 B16.5 B16.47 Series B Supersedes API-605 | 1105mm | 971.5mm | 20 | 73.1mm | 147.6mm WN
166.7mm BL |
||||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 150) | 925mm | 863mm | 28 | M33 | 35.5mm | 71.5mm | |||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 300) | 1035mm | 940mm | 28 | M42 | 45mm | 85.5mm | |||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 600) | 1075mm | 965mm | 28 | M52 | 55mm | 111mm | |||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 900) | 1165mm | 1022mm | 20 | M76 | 80mm | 143mm | |||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 1500) | – | – | – | – | – | – | |||
| ISO7005-1/AS4331.1/.2⑤ PN20 (ANSI 2500) | – | – | – | – | – | – | |||
| AS2129① Table D | 910mm | 845mm | 20 | M27 | 30mm | 41mm | |||
| AS2129① Table E | 910mm | 845mm | 20 | M30 | 33mm | 57mm | |||
| BS3293 Class 150 | 927.2mm | 863.9mm | 28 | 34.9mm | 52.4mm | ||||
| BS3293 Class 300 | 1035mm | 940mm | 28 | 44mm | 86mm | ||||
| BS3293 Class 600 | 1073mm | 965mm | 28 | 54mm | 111mm | ||||
| BS4504② PN10 | 895mm | 840mm | 24 | M27 | |||||
① AS2129 still in use but now only covers Table D to H. Table C now obsolete, Table J to T now replaced by AS4331.1 which is a replication of ISO7500-1 which in turn is equivalent to ASME 150-2500 class ANSI B16.5. AS4331.1 and ISO 7005-1 also incorporates previous DIN PN rated flanging. AS4087 is the new standard covering Table D to H. The same drilling is specified but the PN rating system is used (PN14 to PN35) and in some cases flange thickness varies slightly. AS4087 PN14 & PN16 are the same drilling as AS2129 Table D. AS4087 PN21 is the same drilling and rating as AS2129 Table F. AS4087. AS4087 PN14 & PN16 is the same drilling as AS2129 Table D. AS4087 PN21 is the same rating and drilling as AS2129 Table F and PN35 is the same drilling as Table H. AS4087 specifies raised face in Ductile Iron PN16 & PN35 and flat face in Grey Cast Iron PN14, PN21, PN35. Click here to view full AS4087 flanging dimensions.
② British metric standard BS4504 is now obsolete and replaced by EN1092-1 edition 09-2008 for steel flanges which also incorporates DIN2501 standard. EN1092-1 is also published in the British standards as BS-EN1092-1. Flange drillings in EN1092-1 are generally the same as BS4504 but EN1092-1 covers a wider range.
⑤ ISO7005-1 & ISO 7005-2 (which AS4331.1 mirrors) replaces DIN 2501 & DIN 2533 and BS4504 PN6 to 40. ISO7005-1 & 7005-2 PN6 to 40 is the same as EN1092-1 (note some flanges thicknesses vary slightly) but also incorporates ANSI flanging redesignated as PN20, PN50, PN110, PN150, PN260, PN420. ISO7005-1/AS4331.1 is steel flanges, ISO7005-2/AS4331.2 is iron flanges, ISO7005-3/AS4331.3 is copper alloy flanges. AS4331.1 is a reproduction of ISO7005-1, AS4331.2 is a reproduction of ISO7005-2, AS4331.3 is a reproduction of ISO7005-3.
* Varies according to flange type (thickness includes raised face height where applicable) refer to standard
WN= Weld Neck
BL= Blind
