DIMENSION TABLES FOR 25mm (1 Inch) FLANGES

Dimensional tables for PN, ANSI and BS10 DN25mm (1 Inch) flanges.

Dimensions Tables for Flanges
DIMENSION TABLES FOR 25mm (1 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 6100754M101160 214
PN 10115854M121468218
PN 16115854M1214682 18
PN 25115854M121468218
PN 40115854M121468218
PN 641401004M161868224
PN 1001401004M161868224

ANSI

Class 125 / 1504 1/4 (114)3 1/8 (79)41/2 (13)5/8 (16)2 (51)1/16 (2)7/16 (11)
Class 3004 7/8 (124) 3 1/2 (89)45/8 (16)3/4 (19)2 (51)1/16 (2)11/16 (17)
Class 6004 7/8 (124)3 1/2 (89)45/8 (16)3/4 (19)2 (51) 1/4 (6)11/16 (17)
Class 9005 7/8 (149)4 (102)47/8 (22)1 (25)2 (51)1/4 (6)11/8 (29)
Class 15005 7/8 (149) 4 (102)47/8 (22)1 (25)2 (51)1/4 (6)11/8 (29)

BS 10

Table A4 1/2 (114)3 1/4 (83)4 1/2 (13)9/16 (14)---
Table D4 1/2 (114)3 1/4 (83)41/2 (13)9/16 (14)--3/8 (10)
Table E 4 1/2 (114)3 1/4 (83)41/2 (13)9/16 (14)--3/8 (10)
Table F4 3/4 (121)3 7/16 (87)45/8 (16)11/16 (17)- -3/8 (10)
Table H4 3/4 (121)3 7/16 (87)45/8 (16)11/16 (17)2 1/2 (64)1/16 (2)9/16 (14)