Dimensions of the steel Flanges DN400-16" Print
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Dimensions of the steel Flanges DN 400 - 16"

 

n° - number of holes
dia - diameter of bolts

Flange standard PN
Rating
D K L dia c d f
UNI 2223
DIN 2501
BS 4504
NF E 29-203*
ISO/DIS 7005-1.2*
2,5-6 540 495 22 16 M20 28 465 4
10 565 515 26 16 M24 32 482 4
16 580 525 30 16 M27 32 490 4
25 620 550 36 16 M33 40 505 4
40 660 585 39 16 M36 50 535 4
64 670 585 42 16 M39 60 485
4
100 715 620 48 16 M45 78 485
4
ISO/DIS 7005-1.2
NF E 29-203
20 600 540,0 29,5 16 M27 37,0 470 2
50 650 571,5
35,5 20 M33 57,5 470 2
100 685 603,5 42,0 20 M39 76,5 470 7**
ANSI B 16.5
BS 1560
150 23,50
(596,9)
21,25
(539,8)
1,12
(28,6)
16 1,00
(25,4)
1,44
(36,5)
18,50
(469,9)
0,06
(1.6)
300 25,50
(647,7)
22,50
(571,5)
1,38
(34,9)
20 1,25
(31,8)
2,25
(57,2)
18,50
(469,9)
0,06
(1,6)
400 25,50
(647,7)
22,50
(571,5)
1,50
(38,1)
20 1,38
(34,9)
2,50
(63,5)
18,50
(469,9)
0,25**
(6,4)
600 27,00
(685,8)
23,75
(603,2)
1,62
(41,3)
20 1,50
(38,1)
3,00
(76,2)
18,50
(469,9)
0,25**
(6,4)
900 27,75
(704,8)
24,25
(615,9)
1,75
(44,4)
20 1,62
(41,3)
3,50
(41,3)
18,50
(469,9)
0,25**
(6,4)
BS 10
AS 2129
A 22¾
(577,9)
20½
(520,7)
1
(25,4)
12
(22,2)

(22,2)
D 22¾
(577,9)
20½
(520,7)
1
(25,4)
12
(22,2)
1
(25,4)
E 22¾
(577,9)
20½
(520,7)
1
(25,4)
12
(22,2)
1
(25,4)
F 24
(609,6)
21¾
(552,5)
1⅛
(28,6)
20 1
(25,4)

(31,8)
H 24
(609,6)
21¾
(552,5)
1⅛
(28,6)
20 1
(25,4)

(44,4)
19
(482,6)
1/16
(1.6)
J 24
(609,6)
21¾
(552,5)

(31,8)
20 1⅛
(28,6)

(57,2)
19
(482,6)
1/16
(1.6)
Note - The dimensions of ANSI - BS -AS flanges are in inch; the others are in mm (the ones in brackets included which are derived from the dimensions in inch)
* For ratings 2,5-6-10-16-25-40 only
** To be added to the thickness C of the flange