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Flange Dimensions for DN300
Dimensional tables for PN, ANSI and BS10 DN300mm (12 Inch) flanges.
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| DIMENSION TABLES FOR 300mm (12 Inch) FLANGES | ||||||||
|---|---|---|---|---|---|---|---|---|
| BS EN 1092 | DIAMETER OF FLANGE (A) | BOLT CIRCLE DIAMETER (G) | number OF BOLTS | BOLT SIZE | DIAMETER OF HOLES (D) | DIAMETER OF RAISED FACE (C) | HEIGHT OF RAISED FACE (F) | THICKNESS (E) |
PN | ||||||||
| PN 6 | 440 | 395 | 12 | M20 | 22 | 365 | 2 | 22 |
| PN 10 | 445 | 400 | 12 | M20 | 22 | 370 | 2 | 26 |
| PN 16 | 460 | 410 | 12 | M24 | 26 | 378 | 2 | 28 |
| PN 25 | 485 | 430 | 16 | M27 | 30 | 395 | 2 | 34 |
| PN 40 | 515 | 450 | 16 | M30 | 33 | 410 | 2 | 42 |
| PN 64 | 530 | 460 | 16 | M33 | 36 | 410 | 2 | 52 |
| PN 100 | 585 | 500 | 16 | M39 | 42 | 410 | 2 | 68 |
ANSI | ||||||||
| Class 125 / 150 | 19 (483) | 17 (432) | 12 | 7/8 (22) | 1 (25) | 15 (381) | 1/16 (2) | 11/4 (32) |
| Class 300 | 20 1/2 (521) | 17 3/4 (451) | 16 | 1 1/8 (29) | 1 1/4 (32) | 15 (381) | 1/16 (2) | 2 (51) |
| Class 600 | 22 (559) | 19 1/4 (489) | 20 | 1 1/4 (32) | 1 3/8 (35) | 15 (381) | 1/4 (6) | 2 5/8 (67) |
| Class 900 | 24 (610) | 21 (533) | 20 | 1 3/8 (35) | 1 1/2 (38) | 15 (381) | 1/4 (6) | 3 1/8 (80) |
| Class 1500 | 26 1/2 (673) | 22 1/2 (571) | 16 | 2 (51) | 2 1/8 (54) | 15 (381) | 1/4 (6) | 47/8 (124) |
BS 10 | ||||||||
| Table A | 18 (457) | 16 (406) | 8 | 3/4 (19) | 7/8 (22) | - | - | 7/8 (22) |
| Table D | 18 (457) | 16 (406) | 12 | 3/4 (19) | 7/8 (22) | - | - | 7/8 (22) |
| Table E | 18 (457) | 16 (406) | 12 | 7/8 (22) | 1 (25) | - | - | 1 (25) |
| Table F | 19 1/4 (489) | 17 1/4 (438) | 16 | 7/8 (22) | 1 (25) | - | - | 11/8 (29) |
| Table H | 19 1/4 (489) | 17 1/4 (438) | 16 | 7/8 (22) | 1 (25) | 141/4 (362) | 1/16 (2) | 11/2 (38) |
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