Germany standard flange DIN 2573 for soldering or welding Nominall Pressure 6
Flansche, glatt zum löten oder schweißen DIN 2573 Nenndruck 6
Brides plates a souder DIN 2573 pression nominale 6
Pipe
Flange
Screws
Weight
(7,85 Kg/dm3)
Rated
Diameter
d1
d5
D
b
c
k
Holes
Thread
d2
Kg
ISO Series 1
DIN Series 2
15
–
20
21
80
12
5
55
4
M 10
11
0,41
21,3
–
22
20
–
25
26
90
14
5
65
4
M 10
11
0,60
26,9
–
27,6
25
–
30
31
100
14
5
75
4
M 10
11
0,74
33,7
–
34,4
32
–
38
39
120
16
5
90
4
M 12
14
1,19
42,4
–
43,1
40
–
44,5
45,5
130
16
5
100
4
M 12
14
1,39
48,3
–
49
50
–
57
58,1
140
16
6
110
4
M 12
14
1,53
60,3
–
61,1
65
76,1
–
77,1
160
16
6
130
4
M 12
14
1,89
80
88,9
–
90,3
190
18
7
150
4
M 16
18
2,98
100
–
108
109,6
210
18
7
170
4
M 16
18
3,46
114,3
–
115,9
125
–
133
134,8
240
20
7
200
8
M 16
18
4,60
139,7
–
141,6
150
–
159
161,1
265
20
7
225
8
M 16
18
5,22
168,3
–
170,5
200
219,1
–
221,8
320
22
7
280
8
M 16
18
7,15
250
–
267
270,2
375
24
7
335
12
M 16
18
9,61
273
–
276,2
300
323,9
–
327,6
440
24
7
395
12
M 20
22
12,60
350
355,6
–
359,7
490
26
7
445
12
M 20
22
15,60
–
368
372,2
400
406,4
–
411
540
28
7
495
16
M 20
22
18,40
–
419
423,7
(450)*
457
–
462,5
595
30
7
550
16
M 20
22
21,40
500
508
–
531,6
645
30
7
600
20
M 20
22
24,60
NOTE:
1. Facing according to DIN 2526
Flat face:
Form A, Face without any requirements
Form B, Face Rz=160, machined (not smoother than 40µm)
Raised Face:
Form C, Face Rz=160, machined (not smoother than 40µm)
Form D, Face Rz=40, machined
Form E, Face Rz=16, machined
2. Tongue and groove according to DIN 2512
Form F, Tongue
Form N, Groove
3. Male and Female according to DIN 2513, DIN 2514
Form V13, V14, Male
Form R13, R16, Female
4. Chemfering for diaphragm-weld packings, PN64-PN400, according to DIN 2695
5. Facing for lens-shaped joints, PN64-PN400, according to DIN 2696