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 SIZEDIAMETER
OF HOLES
(D)
DIAMETER
OF RAISED
FACE
(C)
HEIGHT
OF RAISED
FACE
(F)
THICKNESS
(E)

PN

PN 644039512M2022 365222
PN 1044540012M2022370226
PN 1646041012M2426378 228
PN 2548543016M2730395234
PN 4051545016M30334102 42
PN 6453046016M3336410252
PN 10058550016M39424102 68

ANSI

Class 125 / 15019 (483)17 (432)127/8 (22)1 (25)15 (381)1/16 (2)11/4 (32)
Class 300 20 1/2 (521)17 3/4 (451)161 1/8 (29)1 1/4 (32)15 (381)1/16 (2)2 (51)
Class 60022 (559)19 1/4 (489)201 1/4 (32) 1 3/8 (35)15 (381)1/4 (6)2 5/8 (67)
Class 90024 (610)21 (533)201 3/8 (35)1 1/2 (38)15 (381)1/4 (6)3 1/8 (80)
Class 150026 1/2 (673)22 1/2 (571)162 (51)2 1/8 (54)15 (381)1/4 (6)47/8 (124)

BS 10

Table A18 (457) 16 (406)83/4 (19)7/8 (22)--7/8 (22)
Table D18 (457)16 (406)123/4 (19)7/8 (22)--7/8 (22)
Table E18 (457)16 (406)127/8 (22)1 (25)--1 (25)
Table F19 1/4 (489)17 1/4 (438)167/8 (22) 1 (25)--11/8 (29)
Table H19 1/4 (489)17 1/4 (438)167/8 (22)1 (25)141/4 (362)1/16 (2)11/2 (38)