DIMENSION TABLES FOR 300mm (12 Inch) FLANGES

Dimensional tables for PN, ANSI and BS10 DN300mm (12 Inch) flanges.

Dimensions Tables for Flanges
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)