DIMENSION TABLES FOR 20mm (3/4 Inch) FLANGES

Dimensional tables for PN, ANSI and BS10 DN20mm (3/4 Inch) flanges.

Dimensions Tables for Flanges
DIMENSION TABLES FOR 20mm (3/4 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 690654M1011 50214
PN 10105754M121458218
PN 16105754M1214582 18
PN 25105754M121458218
PN 40105754M121458218
PN 64130904M161858222
PN 100130904M161858222

ANSI

Class 125 / 1503 7/8 (98)2 3/4 (70)41/2 (13)5/8 (16)1 11/16 (43)1/16 (2)9/16 (14)
Class 300 4 5/8 (117)3 1/4 (83)45/8 (16)3/4 (19)1 11/16 (43)1/16 (2)5/8 (16)
Class 6004 5/8 (117)3 1/4 (83)45/8 (16)3/4 (19) 1 11/16 (43)1/4 (6)5/8 (16)
Class 9005 1/8 (130)3 1/2 (89)43/4 (19)7/8 (22)1 11/16 (43)1/4 (6)1 (25)
Class 15005 1/8 (130)3 1/2 (89)43/4 (19)7/8 (22)1 11/16 (43)1/4 (6)1 (25)

BS 10

Table A4 (102) 2 7/8 (73)41/2 (13)9/16 (14)---
Table D4 (102)2 7/8 (73)41/2 (13)9/16 (14)--3/8 (10)
Table E4 (102)2 7/8 (73)41/2 (13)9/16 (14)--3/8 (10)
Table F4 (102)2 7/8 (73)41/2 (13)9/16 (14) --3/8 (10)
Table H4 1/2 (114)3 1/4 (83)45/8 (16)11/16 (17)2 1/4 (57)1/16 (2)1/2 (13)