DIMENSION TABLES FOR 450mm (18 Inch) FLANGES

Dimensional tables for PN, ANSI and BS10 DN450mm (18 Inch) flanges.

Dimensions Tables for Flanges
DIMENSION TABLES FOR 450mm (18 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 659555016M2022 52022
PN 1061556520M242653228
PN 1664058520M2730550 40
PN 2567060020M333655546
PN 4068561020M3639560 57
PN 64-------
PN 100-------

ANSI

Class 125 / 15025 (635)22 3/4 (578)161 1/8 (29)1 1/4 (32)21 (533)1/16 (2)1 9/16 (40)
Class 30028 (711) 24 3/4 (629)241 1/4 (32)1 3/8 (35)21 (533)1/16 (2)2 3/8 (60)
Class 60029 1/4 (743)25 3/4 (654)201 5/8 (41)1 3/4 (44) 21 (533)1/4 (6)3 1/4 (83)
Class 90031 (787)27 (686)201 7/8 (48)2 (51)21 (533)1/4 (6)4 (102)
Class 1500 36 (914)30 1/2 (775)162 3/4 (70)2 7/8 (73)21 (533)1/4 (6)6 3/8 (162)

BS 10

Table A25 1/4 (641) 23 (584)127/8 (22)1 (25)-1 1/8 (29)
Table D25 1/4 (641)23 (584)127/8 (22)1 (25)-1 1/8 (29)
Table E25 1/4 (641)23 (584)167/8 (22)1 (25)-1 3/8 (35)
Table F26 1/2 (673)24 (610)201 1/8 (29) 1 1/4 (32)-1 7/8 (48)
Table H26 1/2 (673)24 (610)201 1/8 (29)1 1/4 (32)21 (533)1/16 (2)