DINFLANGE DIN 2573

(Dimensions in mm)

Pipe

Flange

Drilling

Approx. Weight
(7.85 kg/dm3)
kg

Nominal
Size

d1

d5

D

b1)

k

Number
of Holes

Bolt Diameter

d2

10

14
17.2*)

14.5
17.7

75

12

50

4

M10

-

11.5

0.363

15

20
21.3*)

20.5
21.8

80

12

55

4

M10

-

11.5

0.41

20

25
26.9*)

2535
27.4

90

14

65

4

M10

-

11.5

0.60

25

30
33.7*)

30.5
34.2

100

14

75

4

M10

-

11.5

0.74

32

38
42.4*)

38.5
42.9

120

16

90

4

M12

(1/2")

14

1.19

40

44.5
48.3*)

45
48.8

130

16

100

4

M12

(1/2")

14

1.39

50

57
60.3*)

57.5
60.8

140

16

110

4

M12

(1/2")

14

1.53

65

76.1*)

76.6

160

16

130

4

M12

(1/2")

14

1.89

80

88.9*)

89.4

190

18

150

4

M16

(5/8")

18

2.98

100

108
114.3*)

108.5
114.8

210

18

170

4

M16

(5/8")

18

3.46

125

133
139.7*)

133.5
140.2

240

20

200

8

M16

(5/8")

18

4.60

150

159
168.3*)

159.5
168.8

265

20

225

8

M16

(5/8")

18

5.22

200

216
219.1*)

217
220.1

320

22

280

8

M16

(5/8")

18

7.15

250

267
273*)

268
274

375

24

335

12

M16

(5/8")

18

9.61

300

318
323.9*)

319
324.9

440

24

395

12

M20

(3/4")

23

12.6

350

355.6*)
368

356.6
369

490

26

445

12

M20

(3/4")

23

15.6

400

406.4*)
419

407.4
420

540

28

495

16

M20

(3/4")

23

18.4

500

508*)
521

509
522

645

30

600

20

M20

(3/4")

23

24.6

*) Outside diameter of pipe corresponds to ISO recommendation R64.
1) By finishing the face, plater thickness "b" will be reduced by 1-1.5mm.
Material: St.37-2, DIN 17100
Process: Machining the outside diameter, bore, and bolt holes.
A: Face unfinished
B: Face finished
EXAMPLE OF FIXING METHOD