Home Reference Manual Dimensions of the steel Flanges DN20-¾"
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Dimensions of the steel Flanges DN 20 - ¾"

 


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 90 65 11 4 M10 14 50 2
10 105 75 14 4 M12 16 58 2
16 105 75 14 4 M12 16 58 2
25 105 75 14 4 M12 18 58 2
40 105 75 14 4 M12 18 58 2
64 130 90 18 4 M16 22 58 2
100 130 90 18 4 M16 22 58 2
ISO/DIS 7005-1.2
NF E 29-203
20 100 70,0 16 4 M14 13 43 2
50 120 82,5 18 4 M16 16 43 2
100 120 82,5 18 4 M16 16 43 7**
ANSI B 16.5
BS 1560
150 3,88
(98,5)
2,75
(69,8)
0,62
(15,9)
4 0,50
(12,7)
0,50
(12,7)
1,69
(42,9)
0,06
(1.6)
300 4,62
(117,5)
3,25
(82,6)
0,75
(19,0)
4 0,62
(15,9)
0,62
(15,9)
1,69
(42,9)
0,06
(1,6)
400 4,62
(117,5)
3,25
(82,6)
0,75
(19,0)
4 0,62
(15,9)
0,62
(15,9)
1,69
(42,9)
0,25**
(6,4)
600 4,62
(117,5)
3,25
(82,6)
0,75
(19,0)
4 0,62
(15,9)
0,62
(15,9)
1,69
(42,9)
0,25**
(6,4)
900 5,12
(130,2)
3,50
(88,9)
0,88
(22,2)
4 0,75
(19,0)
1,00
(25,4)
1,69
(42,9)
0,25**
(6,4)
BS 10
AS 2129
A 4
(101,6)
2⅞
(73)
9/16
(14,3)
4 ½
(12,7)
3/16
(4,8)
D 4
(101,6)
2⅞
(73)
9/16
(14,3)
4 ½
(12,7)

(9,5)
E 4
(101,6)
2⅞
(73)
9/16
(14,3)
4 ½
(12,7)

(9,5)
F 4
(101,6)
2⅞
(73)
9/16
(14,3)
4 ½
(12,7)

(9,5)
H
(114,3)

(82,6)
11/16
(17,5)
4 ½
(12,7)
½
(12,7)

(57,2)
1/16
(1.6)
J
(114,3)

(82,6)
11/16
(17,5)
4
(15,9)

(15,9)

(57,2)
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