American Flange Standards
| CLASS 1500 | ||||||||
|---|---|---|---|---|---|---|---|---|
| NOMINAL PIPE SIZE | DIAMETER | OUTSIDE DIAMETER | CENTRE LINE SPACING | THICKNESS MIN | WEB LENGTH | NOMINAL PIPE SIZE | ||
| MM | INCH | ID | OD | A | T | B | MM | INCH |
| 15 | 1/2 | 16 | 61 | 83 | 6.4 | 38 | 15 | 1/2 |
| 20 | 3/4 | 21 | 67 | 89 | 6.4 | 41 | 20 | 3/4 |
| 25 | 1 | 27 | 76 | 102 | 9.7 | 56 | 25 | 1 |
| 32 | 1 1/4 | 35 | 86 | 111 | 9.7 | 64 | 32 | 1 1/4 |
| 40 | 1 1/2 | 41 | 95 | 124 | 12.7 | 70 | 40 | 1 1/2 |
| 50 | 2 | 53 | 140 | 165 | 12.7 | 76 | 50 | 2 |
| 65 | 2 1/2 | 63 | 162 | 191 | 15.8 | 76 | 65 | 2 1/2 |
| 80 | 3 | 78 | 172 | 203 | 19.1 | 76 | 80 | 3 |
| 100 | 4 | 102 | 206 | 241 | 22.4 | 89 | 100 | 4 |
| 125 | 5 | 128 | 251 | 292 | 28.5 | 89 | 125 | 5 |
| 150 | 6 | 154 | 279 | 318 | 35.1 | 89 | 150 | 6 |
| 200 | 8 | 203 | 349 | 394 | 41.1 | 102 | 200 | 8 |
| 250 | 10 | 254 | 432 | 483 | 50.8 | 114 | 250 | 10 |
| 300 | 12 | 303 | 518 | 572 | 60.5 | 114 | 300 | 12 |
| 350 | 14 | 333 | 575 | 635 | 66.6 | 127 | 350 | 14 |
| 400 | 16 | 381 | 635 | 699 | 72.2 | 140 | 400 | 16 |
| 450 | 18 | 429 | 702 | 775 | 85.9 | 140 | 450 | 18 |
| 500 | 20 | 477 | 752 | 838 | 95.3 | 152 | 500 | 20 |
| 600 | 24 | 575 | 899 | 991 | 114.3 | 178 | 600 | 24 |
NOTES:
NOTES:(1) The normal full face is as shown they are also available as raised face, female ring joint or male ring joint however the sizes change.
BALCOMBE ENGINEERING P/L ...03 9554 0900..... www.baleng.com.au
Balcombe Engineering Pty Ltd has been the leading Australian specialist flange manufacturer in the flange industry for over 50 years servicing a diverse range of customers for flanges, spectacle blinds, and tubeplates
