Home Reference Manual Dimensions of the steel Flanges DN25-1"
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Dimensions of the steel Flanges DN 25 - 1"

 


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* 		2,5-6 100 75 11 4 M10 14 60 2
10 115 85 14 4 M12 16 68 2
16 115 85 14 4 M12 16 68 2
25 115 85 14 4 M12 18 68 2
40 115 85 14 4 M12 18 68 2
64 140 100 18 4 M16 24 65
 2
100 140 100 18 4 M16 24 65
 2
ISO/DIS 7005-1.2
NF E 29-203 		20 110 79,5 16 4 M14 14,5 51
 2
50 125 89,0 18 4 M16 17,5 51
 2
100 125 89,0 18 4 M16 17,5 51
 7**
ANSI B 16.5
BS 1560 		150 4,25
(107,9) 		3,12
(79,4) 		0,62
(15,8) 		4 0,50
(12,7) 		0,56
(14,3) 		2,00
(50,8) 		0,06
(1.6)
300 4,88
(123,8) 		3,50
(88,9) 		0,75
(19,0) 		4 0,62
(15,9) 		0,69
(17,5) 		2,00
(50,8) 		0,06
(1,6)
400 4,88
(123,8) 		3,50
(88,9) 		0,75
(19,0) 		4 0,62
(15,9) 		0,69
(17,5) 		2,00
(50,8) 		0,25**
(6,4)
600 4,88
(123,8) 		3,50
(88,9) 		0,75
(19,0) 		4 0,62
(15,9) 		0,69
(17,5) 		2,00
(50,8)		 0,25**
(6,4)
900 5,12
(130,2) 		4,00
(101,6) 		1,00
(25,4) 		4 0,88
(22,2) 		1,12
(28,6) 		2,00
(50,8) 		0,25**
(6,4)
BS 10
AS 2129 		A 4½
(114,3) 		3¼
(82,6) 		9/16
(14,3) 		4 ½
(12,7) 		3/16
(4,8) 		— —
D 4½
(114,3) 		3¼
(82,6)		 9/16
(14,3) 		4 ½
(12,7) 		⅜
(9,5) 		— —
E 4½
(114,3) 		3¼
(82,6)		 9/16
(14,3) 		4 ½
(12,7) 		⅜
(9,5) 		— —
F 4¾
(120,6) 		3 7/16
(87,3) 		11/16
(17,5) 		4 ⅝
(15,9) 		⅜
(9,5) 		— —
H 4¾
(120,6) 		3 7/16
(87,3) 		11/16
(17,5) 		4 ⅝
(15,9) 		9/16
(14,3) 		2½
(63,5) 		1/16
(1.6)
J 4¾
(120,6) 		3 7/16
(87,3) 		11/16
(17,5) 		4 ⅝
(15,9) 		¾
(19,0) 		2½
(63,5) 		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