DIMENSION TABLES FOR 250mm (10 Inch) FLANGES

Dimensional tables for PN, ANSI and BS10 DN250mm (10 Inch) flanges.

Dimensions Tables for Flanges
DIMENSION TABLES FOR 250mm (10 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 6 375 335 12 M16 18 312 2 22
PN 10 395 (2) 350 12 M20 22 320 2 26
PN 16 405 (2) 355 12 M24 26 320 2 26
PN 25 425 370 12 M27 30 335 2 32
PN 40 450 385 12 M30 33 345 2 38
PN 64 470 400 12 M33 36 345 2 46
PN 100 505 430 12 M36 39 345 2 60

ANSI

Class 125 / 150 16 (406) 14 1/4 (362) 12 7/8 1 (25) 12 3/4 (324) 1/16 (2) 1 3/16 (30)
Class 300 17 1/2 (445) 15 1/4 (387) 16 1 (25) 1 1/8 (29) 12 3/4 (324) 1/16 1 7/8 (41)
Class 600 20 (508) 17 (432) 16 1 1/4 (32) 1 3/8 (35) 12 3/4 (324) 1/4 2 1/2 (64)
Class 900 21 1/2 (546) 18 1/2 (470) 16 1 3/8 (35) 1 1/2 (38) 12 3/4 (324) 1/4 2 3/4 (70)
Class 1500 23 (584) 19 (483) 12 1 7/8 (41) 2 1/2 (38) 12 3/4 (324) 1/4 4 1/4 (108)

BS 10

Table A 16 (406) 14 (356) 8 3/4 7/8 22 - - 15/16
Table D 16 (406) 14 (356) 8 3/4 7/8 22 - - 3/4
Table E 16 (406) 14 (356) 12 3/4 7/8 22 - - 7/8
Table F 17 (432) 15 (381) 12 7/8 1 (25) - - 1 (25)
Table H 17 (432) 15 (381) 12 7/8 1 (25) 121/4 (311) 1/16 1 3/8 (35)