Home Reference Manual Dimensions of the steel Flanges DN50-2"
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Dimensions of the steel Flanges DN 50 - 2"

 


n° - number of holes
dia - diameter of bolts

 

Flange standard PN
Rating		 D K L n° dia c d f
UNI 2223
DIN 2501
BS 4504
NF E 29-203*
ISO/DIS 7005-1.2*		 2,5-6 140 110 14 4 M12 16 90 3
10 165 125 18 4 M16 18 102 3
16 165 125 18 4 M16 18 102 3
25 165 125 18 4 M16 20 102 3
40 165 125 18 4 M16 20 102 3
64 180 135 22 4 M20 26 95
 3
100 195 145 26 4 M24 28 95
 3
ISO/DIS 7005-1.2
NF E 29-203		 20 152 120,5 18 4 M16 19,5 92 2
50 165 127,0
 18 8 M16 22,5 92 2
100 165 127,0 18 8 M16 25,5 92 7**
ANSI B 16.5
BS 1560		 150 6,00
(152,4)		 4,75
(120,6)		 0,75
(19,0)		 4 0,62
(15,9)		 0,75
(19,0)		 3,62
(92,1)		 0,06
(1.6)
300 6,50
(165,1)		 5,00
(127,0)
 0,75
(19,0)		 8 0,62
(15,9)		 0,88
(22,2)		 3,62
(92,1)		 0,06
(1,6)
400 6,50
(165,1)		 5,00
(127,0)		 0,75
(19,0)		 8 0,62
(15,9)		 1,00
(25,4)		 3,62
(92,1)		 0,25**
(6,4)
600 6,50
(165,1)		 5,00
(127,0)		 0,75
(19,0)		 8 0,62
(15,9)		 1,00
(25,4)		 3,62
(92,1)		 0,25**
(6,4)
900 8,50
(215,9)		 6,50
(165,1)		 1,00
(25,4)		 8 0,88
(22,2)		 1,50
(38,1)		 3,62
(92,1)		 0,25**
(6,4)
BS 10
AS 2129		 A 6
(152,4)		 4½
(114,3)		 11/16
(17,5)		 4 ⅝
(15,9)		 5/16
(7,9)		 — —
D 6
(152,4)		 4½
(114,3)		 11/16
(17,5)		 4 ⅝
(15,9)		 9/16
(14,3)		 — —
E 6
(152,4)		 4½
(114,3)		 11/16
(17,5)		 4 ⅝
(15,9)		 9/16
(14,3)		 — —
F 6½
(165,1)
 5
(127,0)		 11/16
(17,5)		 4 ⅝
(15,9)		 ⅝
(15,9)		 — —
H 6½
(165,1)		 5
(127,0)		 11/16
(17,5)		 4 ⅝
(15,9)		 ¾
(19,0)		 4
(101,6)		 1/16
(1.6)
J 6½
(165,1)		 5
(127,0)		 ⅞
(22,2)		 4 ¾
(19,0)
 1
(25,4)		 4
(101,6)		 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