Aquamonix 2020 and 2060 meters can be manufactured with a wide range of flanges. Flanges are used to connect flowmeters into pipework making it easier for removal and maintenance. Flangers are either flat or raised face. Below is a reference table for critical flange dimensions for our standard flange offerings.
50mm (DN50)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 150 | 114 | 4 | M16 | 18 |
| PN21 | 165 | 127 | 4 | M16 | 18 | |
| PN35 | 165 | 127 | 4 | M16 | 18 | |
| AS 2129 | Table D | 150 | 114 | 4 | M16 | 18 |
| Table E | 150 | 114 | 4 | M16 | 18 | |
| Table H | 165 | 127 | 4 | M16 | 18 | |
| ANSI B16.5 | ANSI 150 | 152.4 | 120.7 | 4 | 5/8" | 19.1 |
| ANSI 300 | 165.1 | 127 | 8 | 5/8" | 19.1 | |
| ANSI 600 | 165.1 | 127 | 8 | 5/8" | 19.1 | |
| ISO 7005 (DIN) | PN10 | 165 | 125 | 4 | M16 | 18 |
| PN16 | 165 | 125 | 4 | M16 | 18 | |
| PN25 | 165 | 125 | 4 | M16 | 18 |
80mm (DN80)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 185 | 146 | 4 | M16 | 18 |
| PN21 | 205 | 165 | 8 | M16 | 18 | |
| PN35 | 205 | 165 | 8 | M16 | 18 | |
| AS 2129 | Table D | 185 | 146 | 4 | M16 | 18 |
| Table E | 185 | 146 | 4 | M16 | 18 | |
| Table H | 205 | 165 | 8 | M16 | 18 | |
| ANSI B16.5 | ANSI 150 | 190.5 | 152.4 | 4 | 5/8" | 19.1 |
| ANSI 300 | 209.6 | 168.1 | 8 | 3/4" | 22.4 | |
| ANSI 600 | 209.6 | 168.1 | 8 | 3/4" | 22.4 | |
| ISO 7005 (DIN) | PN10 | 200 | 160 | 8 | M16 | 18 |
| PN16 | 200 | 160 | 8 | M16 | 18 | |
| PN25 | 200 | 160 | 8 | M16 | 18 |
100mm (DN100)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 215 | 178 | 4 | M16 | 18 |
| PN21 | 230 | 191 | 8 | M16 | 18 | |
| PN35 | 230 | 191 | 8 | M16 | 18 | |
| AS 2129 | Table D | 215 | 178 | 4 | M16 | 18 |
| Table E | 215 | 178 | 8 | M16 | 18 | |
| Table H | 230 | 191 | 8 | M16 | 18 | |
| ANSI B16.5 | ANSI 150 | 228.6 | 190.5 | 8 | 5/8" | 19.1 |
| ANSI 300 | 254 | 200.2 | 8 | 3/4" | 22.4 | |
| ANSI 600 | 273.1 | 215.9 | 8 | 7/8" | 25.4 | |
| ISO 7005 (DIN) | PN10 | 220 | 180 | 8 | M16 | 18 |
| PN16 | 220 | 180 | 8 | M16 | 18 | |
| PN25 | 235 | 190 | 8 | M20 | 22 |
150mm (DN150)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 280 | 235 | 8 | M16 | 18 |
| PN21 | 305 | 260 | 12 | M20 | 22 | |
| PN35 | 305 | 260 | 12 | M20 | 22 | |
| AS 2129 | Table D | 280 | 235 | 8 | M16 | 18 |
| Table E | 280 | 235 | 8 | M20 | 22 | |
| Table H | 305 | 260 | 12 | M20 | 22 | |
| ANSI B16.5 | ANSI 150 | 279.4 | 241.3 | 8 | 3/4" | 22.4 |
| ANSI 300 | 317.5 | 269.7 | 12 | 3/4" | 22.4 | |
| ANSI 600 | 355.6 | 292.1 | 12 | 1" | 28.4 | |
| ISO 7005 (DIN) | PN10 | 285 | 240 | 8 | M20 | 22 |
| PN16 | 285 | 240 | 8 | M20 | 22 | |
| PN25 | 300 | 250 | 8 | M24 | 26 |
200mm (DN200)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 335 | 292 | 8 | M16 | 18 |
| PN21 | 370 | 324 | 12 | M20 | 22 | |
| PN35 | 370 | 324 | 12 | M20 | 22 | |
| AS 2129 | Table D | 335 | 292 | 8 | M16 | 18 |
| Table E | 335 | 292 | 8 | M20 | 22 | |
| Table H | 370 | 324 | 12 | M20 | 22 | |
| ANSI B16.5 | ANSI 150 | 342.9 | 298.5 | 8 | 3/4" | 22.4 |
| ANSI 300 | 381 | 330.2 | 12 | 7/8" | 25.4 | |
| ANSI 600 | 419.1 | 349.3 | 12 | 1-1/8" | 31.8 | |
| ISO 7005 (DIN) | PN10 | 340 | 295 | 8 | M20 | 22 |
| PN16 | 340 | 295 | 12 | M20 | 22 | |
| PN25 | 360 | 310 | 12 | M24 | 26 |
225mm (DN225)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | — | — | — | — | — |
| PN21 | — | — | — | — | — | |
| PN35 | — | — | — | — | — | |
| AS 2129 | Table D | — | — | — | — | — |
| Table E | — | — | — | — | — | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | — | — | — | — | — |
| PN16 | — | — | — | — | — | |
| PN25 | — | — | — | — | — |
None of these standards specifies a flange drilling at this size.
250mm (DN250)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 405 | 356 | 8 | M20 | 22 |
| PN21 | 430 | 381 | 12 | M24 | 26 | |
| PN35 | 430 | 381 | 12 | M24 | 26 | |
| AS 2129 | Table D | 405 | 356 | 8 | M20 | 22 |
| Table E | 405 | 356 | 12 | M20 | 22 | |
| Table H | 430 | 381 | 12 | M24 | 26 | |
| ANSI B16.5 | ANSI 150 | 406.4 | 362 | 12 | 7/8" | 25.4 |
| ANSI 300 | 444.5 | 387.4 | 16 | 1" | 28.4 | |
| ANSI 600 | 508 | 431.8 | 16 | 1-1/4" | 35.1 | |
| ISO 7005 (DIN) | PN10 | 395 | 350 | 12 | M20 | 22 |
| PN16 | 405 | 355 | 12 | M24 | 26 | |
| PN25 | 425 | 370 | 12 | M27 | 30 |
300mm (DN300)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 455 | 406 | 12 | M20 | 22 |
| PN21 | 490 | 438 | 16 | M24 | 26 | |
| PN35 | 490 | 438 | 16 | M24 | 26 | |
| AS 2129 | Table D | 455 | 406 | 12 | M20 | 22 |
| Table E | 455 | 406 | 12 | M24 | 26 | |
| Table H | 490 | 438 | 16 | M24 | 26 | |
| ANSI B16.5 | ANSI 150 | 482.6 | 431.8 | 12 | 7/8" | 25.4 |
| ANSI 300 | 520.7 | 450.9 | 16 | 1-1/8" | 31.8 | |
| ANSI 600 | 558.8 | 489 | 20 | 1-1/4" | 35.1 | |
| ISO 7005 (DIN) | PN10 | 445 | 400 | 12 | M20 | 22 |
| PN16 | 460 | 410 | 12 | M24 | 26 | |
| PN25 | 485 | 430 | 16 | M27 | 30 |
350mm (DN350)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 525 | 470 | 12 | M24 | 26 |
| PN21 | 550 | 495 | 16 | M27 | 30 | |
| PN35 | 550 | 495 | 16 | M27 | 30 | |
| AS 2129 | Table D | 525 | 470 | 12 | M24 | 26 |
| Table E | 525 | 470 | 12 | M24 | 26 | |
| Table H | 550 | 495 | 16 | M27 | 30 | |
| ANSI B16.5 | ANSI 150 | 533.4 | 476.3 | 12 | 1" | 28.4 |
| ANSI 300 | 584.2 | 514.4 | 20 | 1-1/8" | 31.8 | |
| ANSI 600 | 603.3 | 527.1 | 20 | 1-3/8" | 38.1 | |
| ISO 7005 (DIN) | PN10 | 505 | 460 | 16 | M20 | 22 |
| PN16 | 520 | 470 | 16 | M24 | 26 | |
| PN25 | 555 | 490 | 16 | M30 | 33 |
375mm (DN375)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | |||||
| PN21 | ||||||
| PN35 | ||||||
| AS 2129 | Table D | |||||
| Table E | ||||||
| Table H | ||||||
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | |||||
| PN16 | ||||||
| PN25 |
Dimensions required. The Keystone comparison tables do not include this size — they step from 350mm straight to 400mm.
400mm (DN400)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 580 | 521 | 12 | M24 | 26 |
| PN21 | 610 | 552 | 20 | M27 | 30 | |
| PN35 | 610 | 552 | 20 | M27 | 30 | |
| AS 2129 | Table D | 580 | 521 | 12 | M24 | 26 |
| Table E | 580 | 521 | 12 | M24 | 26 | |
| Table H | 610 | 552 | 20 | M27 | 30 | |
| ANSI B16.5 | ANSI 150 | 596.9 | 539.8 | 16 | 1" | 28.4 |
| ANSI 300 | 647.7 | 571.5 | 20 | 1-1/4" | 35.1 | |
| ANSI 600 | 685.8 | 603.3 | 20 | 1-1/2" | 41.1 | |
| ISO 7005 (DIN) | PN10 | 565 | 515 | 16 | M24 | 26 |
| PN16 | 580 | 525 | 16 | M27 | 30 | |
| PN25 | 620 | 550 | 16 | M33 | 36 |
450mm (DN450)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 640 | 584 | 12 | M24 | 26 |
| PN21 | 675 | 610 | 20 | M30 | 33 | |
| PN35 | 675 | 610 | 20 | M30 | 33 | |
| AS 2129 | Table D | 640 | 584 | 12 | M24 | 26 |
| Table E | 640 | 584 | 16 | M24 | 26 | |
| Table H | 675 | 610 | 20 | M30 | 33 | |
| ANSI B16.5 | ANSI 150 | 635 | 577.9 | 16 | 1-1/8" | 31.8 |
| ANSI 300 | 711.2 | 628.7 | 24 | 1-1/4" | 35.1 | |
| ANSI 600 | 743 | 654.1 | 20 | 1-5/8" | 44.5 | |
| ISO 7005 (DIN) | PN10 | 615 | 565 | 20 | M24 | 26 |
| PN16 | 640 | 585 | 20 | M27 | 30 | |
| PN25 | 670 | 600 | 20 | M33 | 35.5 |
500mm (DN500)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 705 | 641 | 16 | M24 | 26 |
| PN21 | 735 | 673 | 24 | M30 | 33 | |
| PN35 | 735 | 673 | 24 | M30 | 33 | |
| AS 2129 | Table D | 705 | 641 | 16 | M24 | 26 |
| Table E | 705 | 641 | 16 | M24 | 26 | |
| Table H | 735 | 673 | 24 | M30 | 33 | |
| ANSI B16.5 | ANSI 150 | 698.5 | 635 | 20 | 1-1/8" | 31.8 |
| ANSI 300 | 774.7 | 685.8 | 24 | 1-1/4" | 35.1 | |
| ANSI 600 | 812.8 | 723.9 | 24 | 1-5/8" | 44.5 | |
| ISO 7005 (DIN) | PN10 | 670 | 620 | 20 | M24 | 26 |
| PN16 | 715 | 650 | 20 | M30 | 33 | |
| PN25 | 730 | 660 | 20 | M33 | 36 |
550mm (DN550)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | — | — | — | — | — |
| PN21 | — | — | — | — | — | |
| PN35 | — | — | — | — | — | |
| AS 2129 | Table D | 760 | 699 | 16 | M27 | 30 |
| Table E | 760 | 699 | 16 | M27 | 30 | |
| Table H | 785 | 724 | 24 | M30 | 33 | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | — | — | — | — | — |
| PN16 | — | — | — | — | — | |
| PN25 | — | — | — | — | — |
600mm (DN600)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 825 | 756 | 16 | M27 | 30 |
| PN21 | 850 | 781 | 24 | M33 | 36 | |
| PN35 | 850 | 781 | 24 | M33 | 36 | |
| AS 2129 | Table D | 825 | 756 | 16 | M27 | 30 |
| Table E | 825 | 756 | 16 | M30 | 33 | |
| Table H | 850 | 781 | 24 | M33 | 36 | |
| ANSI B16.5 | ANSI 150 | 812.8 | 749.3 | 20 | 1-1/4" | 35.1 |
| ANSI 300 | 914.4 | 812.8 | 24 | 1-1/2" | 41.1 | |
| ANSI 600 | 934.8 | 838.2 | 24 | 1-7/8" | 50.0 | |
| ISO 7005 (DIN) | PN10 | 780 | 725 | 20 | M27 | 30 |
| PN16 | 840 | 770 | 20 | M33 | 36 | |
| PN25 | 845 | 770 | 20 | M36 | 39 |
700mm (DN700)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 910 | 845 | 20 | M27 | 30 |
| PN21 | 935 | 857 | 24 | M33 | 36 | |
| PN35 | 935 | 857 | 24 | M33 | 36 | |
| AS 2129 | Table D | 910 | 845 | 20 | M27 | 30 |
| Table E | 910 | 845 | 20 | M30 | 33 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | 895 | 840 | 24 | M27 | 30 |
| PN16 | 910 | 840 | 24 | M33 | 36 | |
| PN25 | 960 | 875 | 24 | M39 | 42 |
750mm (DN750)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 995 | 927 | 20 | M30 | 33 |
| PN21 | 1015 | 940 | 28 | M33 | 36 | |
| PN35 | 1015 | 940 | 28 | M33 | 36 | |
| AS 2129 | Table D | 995 | 927 | 20 | M30 | 33 |
| Table E | 995 | 927 | 20 | M33 | 36 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | — | — | — | — | — |
| PN16 | — | — | — | — | — | |
| PN25 | — | — | — | — | — |
800mm (DN800)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 1060 | 984 | 20 | M33 | 36 |
| PN21 | 1060 | 984 | 28 | M33 | 36 | |
| PN35 | 1060 | 984 | 28 | M33 | 36 | |
| AS 2129 | Table D | 1060 | 984 | 20 | M33 | 36 |
| Table E | 1060 | 984 | 20 | M33 | 36 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | 1015 | 950 | 24 | M30 | 33 |
| PN16 | 1025 | 950 | 24 | M36 | 39 | |
| PN25 | 1085 | 990 | 24 | M45 | 48 |
900mm (DN900)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 1175 | 1092 | 24 | M33 | 36 |
| PN21 | 1185 | 1105 | 32 | M36 | 39 | |
| PN35 | 1185 | 1105 | 32 | M36 | 39 | |
| AS 2129 | Table D | 1175 | 1092 | 24 | M33 | 36 |
| Table E | 1175 | 1092 | 24 | M33 | 36 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | 1115 | 1050 | 28 | M30 | 33 |
| PN16 | 1125 | 1050 | 28 | M36 | 39 | |
| PN25 | 1185 | 1090 | 28 | M45 | 48 |
1000mm (DN1000)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 1255 | 1175 | 24 | M33 | 36 |
| PN21 | 1275 | 1194 | 36 | M36 | 39 | |
| PN35 | 1275 | 1194 | 36 | M36 | 39 | |
| AS 2129 | Table D | 1255 | 1175 | 24 | M33 | 36 |
| Table E | 1255 | 1175 | 24 | M36 | 39 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | 1230 | 1160 | 28 | M33 | 36 |
| PN16 | 1255 | 1170 | 28 | M39 | 42 | |
| PN25 | 1320 | 1210 | 28 | M52 | 56 |
1100mm (DN1100)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | — | — | — | — | — |
| PN21 | — | — | — | — | — | |
| PN35 | — | — | — | — | — | |
| AS 2129 | Table D | — | — | — | — | — |
| Table E | — | — | — | — | — | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | — | — | — | — | — |
| PN16 | — | — | — | — | — | |
| PN25 | — | — | — | — | — |
None of these standards specifies a flange drilling at this size.
1200mm (DN1200)
| Standard | Class | Flange OD | Pitch Circle Dia. | No. of Bolts | Bolt Size | Bolt Hole Dia. |
|---|---|---|---|---|---|---|
| AS 4087 | PN16 | 1490 | 1410 | 32 | M33 | 36 |
| PN21 | 1530 | 1441 | 40 | M39 | 42 | |
| PN35 | 1530 | 1441 | 40 | M39 | 42 | |
| AS 2129 | Table D | 1490 | 1410 | 32 | M33 | 36 |
| Table E | 1490 | 1410 | 32 | M36 | 39 | |
| Table H | — | — | — | — | — | |
| ANSI B16.5 | ANSI 150 | n/a | n/a | n/a | n/a | n/a |
| ANSI 300 | n/a | n/a | n/a | n/a | n/a | |
| ANSI 600 | n/a | n/a | n/a | n/a | n/a | |
| ISO 7005 (DIN) | PN10 | 1455 | 1380 | 32 | M36 | 39 |
| PN16 | 1485 | 1390 | 32 | M45 | 48 | |
| PN25 | 1530 | 1420 | 32 | M52 | 56 |
Notes
- Dimensions in millimetres. Bolt sizes are metric (M) for the AS and ISO standards and imperial for ANSI B16.5, where the millimetre figures are converted and so carry a decimal.
- ANSI B16.5 is defined for NPS ½ to NPS 24 (DN15–DN600) at standard NPS sizes only. It is shown as n/a where no NPS equivalent exists — 225mm, 375mm and 550mm — and for every size above 600mm, where the applicable standard is ASME B16.47 (NPS 26–60). B16.47 has two series, A and B, which are not interchangeable.
- A dash (—) means that standard has no drilling at that size. AS 2129 Table H, for example, does not extend beyond 600mm.
- Source: Keystone Flange Comparison Tables (FCT/6/96), which cites AS 2129:1994, AS 4087:1993, ASME/ANSI B16.5:1988 and ISO 7005-1:1992. AS 4087 has since been revised (AS 4087:2004); confirm against the current edition before relying on these figures for procurement.
- Dimensions are provided as a guide. Confirm the flange configuration for your application when ordering.
