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Flange Dimensions for DN400
Dimensional tables for PN, ANSI and BS10 DN400mm (16 Inch) flanges.
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| DIMENSION TABLES FOR 400mm (16 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 | 540 | 495 | 16 | M20 | 22 | 465 | 2 | 22 |
| PN 10 | 565 | 515 | 16 | M24 | 26 | 482 | 2 | 26 |
| PN 16 | 580 | 525 | 16 | M27 | 30 | 490 | 2 | 32 |
| PN 25 | 620 | 550 | 16 | M33 | 36 | 505 | 2 | 40 |
| PN 40 | 660 | 585 | 16 | M36 | 39 | 535 | 2 | 50 |
| PN 64 | 670 | 585 | 16 | M39 | 42 | 535 | 2 | 60 |
| PN 100 | 715 | 620 | 16 | M45 | 48 | 535 | 2 | 78 |
ANSI | ||||||||
| Class 125 / 150 | 23 1/2 (597) | 21 1/4 (540) | 16 | 1 (25) | 1 1/8 (29) | 18 1/2 (470) | 1/16 (2) | 1 7/16 (37) |
| Class 300 | 25 1/2 (648) | 22 1/2 (572) | 20 | 1 1/4 (32) | 1 3/8 (35) | 18 1/2 (470) | 1/16 (2) | 2 1/4 (57) |
| Class 600 | 27 (686) | 23 3/4 (603) | 20 | 1 1/2 (38) | 1 5/8 (41) | 18 1/2 (470) | 1/4 (6) | 3 (76) |
| Class 900 | 27 3/4 (705) | 24 1/4 (616) | 20 | 1 5/8 (41) | 1 3/4 (44) | 18 1/2 (470) | 1/4 (6) | 3 1/2 (89) |
| Class 1500 | 32 1/2 (826) | 27 3/4 (705) | 16 | 2 1/2 (64) | 2 5/8 (67) | 18 1/2 (470) | 1/4 (6) | 5 3/4 (146) |
BS 10 | ||||||||
| Table A | 22 3/4 (578) | 20 1/2 (521) | 12 | 7/8 (22) | 1 (25) | - | - | - |
| Table D | 22 3/4 (578) | 20 1/2 (521) | 12 | 7/8 (22) | 1 (25) | - | - | 1 (25) |
| Table E | 22 3/4 (578) | 20 1/2 (521) | 12 | 7/8 (22) | 1 (25) | - | - | 1 (25) |
| Table F | 24 (610) | 21 3/4 (552) | 20 | 1 (25) | 1 1/8 (29) | - | 1 1/4 (32) | |
| Table H | 24 (610) | 21 3/4 (552) | 20 | 1 (25) | 1 1/8 (29) | 19 (483) | 1/16 (2) | 1 3/4 (44) |
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