PN 40 Type 11 Flange Dimension
DNMating dimensionsOutside
diameter
of neck

A
Flange thicknessLengthNeck diametersCorner
radii


R1
Neck
thickness
(see 5.6.1)

S
Outside
diameter

D
Diameter
of bolt
circle

K
Diameter
of
bolt hole

L
Bolting
NumberSizeC2H2H3N1
109060144M1217.216356284See Annex A
159565144M1221.316386324
2010575144M1226.918406404
2511585144M1233.718406464
32140100184M1642.418426566
40150110184M1648.318457646
50165125184M1660.320488756
65185145188M1676.1225210906
80200160188M1688.92458121058
100235190228M20114.32465121348
125270220268M24139.72668121628
150300250268M24168.328751219210
2003753203012M27219.134881624410
2504503853312M30273.0381051830612
3005154503316M30323.9421151836212
3505805103616M33355.6461252040812
4006605853916M36406.4501352046212
4506856103920M36457.0571352050012
5007556704220M39508.0571402056212
6008907954820M45610.0721502066612
700b
800
900
1 000
1 200
1 400
1 600
a For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter and the nominal value dimensions A, N3 and R1 and their tolerances are included for guidance only.
b Only mating dimensions fixed, see Annex J.
c Use is limited up to DN 600.
d To be specified by the purchaser.

EN 1092-1 PN 40 Flanges Dimension PDF:

https://www.zzflange.com/wp-content/uploads/2025/08/EN-1092-1-PN-40-Flanges-Dimension.pdf