DINFLANGE DIN 2633

(Dimensions in mm)

Nominal Pressure 16

Pipe

Flange

Neck

Raised Face

Drilling

Approx.
Weight
(7.85 kg/dm3)
kg

Nominal
Size

d1

D

b

k

h1

d3

s

r

h2

d4

f

Number
of
Holes

Bolt
Diameter

d2

10

14
17.2*)

90

14

60

35

25
28

1.8

4

6

40

2

4

M12

(1/2")

14

0.580

15

20
21.3*)

95

14

65

35

30
32

2

4

6

45

2

4

M12

(1/2")

14

0.648

20

25
26.9*)

105

16

75

38

38
40

2.3

4

6

58

2

4

M12

(1/2")

14

0.952

25

30
33.7*)

115

16

85

38

42
45

2.6

4

6

68

2

4

M12

(1/2")

14

1.14

32

38
42.4*)

140

16

100

40

52
56

2.6

6

6

78

2

4

M16

(5/8")

18

1.69

40

44.5
48.3*)

150

16

110

42

60
64

2.6

6

7

88

3

4

M16

(5/8")

18

1.86

50

57
60.3*)

165

18

125

45

72
75

2.9

6

8

102

3

4

M16

(5/8")

18

2.53

65

76.1*)

185

18

145

45

90

2.9

6

10

122

3

4

M16

(5/8")

18

3.06

80

88.9*)

200

20

160

50

105

3.2

8

10

138

3

4/8*)

M16

(5/8")

18

3.70

100

108
114.3*)

220

20

180

52

125
131

3.6

8

12

158

3

8

M16

(5/8")

18

4.62

125

133
139.7*)

250

22

210

55

150
156

4

8

12

188

3

8

M16

(5/8")

18

6.30

150

159
168.3*)

285

22

240

55

175
184

4.5

10

12

212

3

8

M20

(3/4")

23

7.75

*) Outer dimameter of pipe corresponds to ISO
    recommendation R64.
    Material (to be specified by orderer):
    St. 37-2 by DIN 17100 for temperature 300 °C
Weldable heat-treated steel for temperature > 300 °C.
Process: Machining the outside diameter, bore, gasket surface, bevel end for welding, and bolt holes.
 3

(Dimensions in mm)

Nominal Pressure 16 (Continue)

Pipe

Flange

Neck

Raised Face

Drilling

Approx.
Weight
(7.85 kg/dm3)
kg

Nominal
Size

d1

D

b

k

h1

d3

s

r

h2

d4

f

Number
of
Holes

Bolt
Diameter

d2

(175)

191
193.7*)

315

24

270

60

208
210

5.4

10

12

242

3

8

M20

(3/4")

23

10.0

200

216
219.1*)

340

24

295

62

232
235

5.9

10

16

268

3

12

M20

(3/4")

23

11.0

250

267
273*)

405

26

355

70

285
292

6.3

12

16

320

3

12

M24

(7/8")

27

15.6

300

318
323.9*)

460

28

410

78

338
344

7.1

12

16

378

4

12

M24

(7/8")

27

22.0

350

355.6*)
368

520

30

570

82

390

8

12

16

438

4

16

M24

(7/8")

27

28.7

400

406.4*)
419

580

32

525

85

445

8

12

16

490

4

16

M27

(1")

30

36.3

500

508*)
521

715

34

650

90

548

8

12

16

610

4

20

M30

(1 1/8")

33

59.3

600

609.6*)
622

840

36

770

95

652

8.8

12

18

725

5

20

M33

(1 1/4")

36

73.4

700

711.2*)
720

910

36

840

100

755

8.8

12

18

795

5

24

M33

(1 1/4")

36

75.0

800

812.8*)
820

1025

38

950

105

855

10

12

20

900

5

24

M36

(1 3/8")

39

99.0

900

914.4*)
920

1125

40

1050

110

955

10

12

20

1000

5

28

M36

(1 3/8")

39

119

1000

1016*)
1020

1255

42

1170

120

1058

10

16

22

1115

5

28

M39

(1 1/2")

42

159

1200

1220

1485

48

1390

130

1262

12.5

16

30

1330

5

32

M45

(1 3/4")

48

243

1400

1420

1685

52

1590

145

1465

14.2

16

30

1530

5

36

M45

(1 3/4")

48

323

1600

1620

1930

58

1820

160

1668

16

16

35

1750

5

40

M52

(2")

56

479

1800

1820

2130

62

2020

170

1870

17.5

16

35

1950

5

44

M52

(2")

56

599

2000

2020

2345

66

2230

180

2072

20

16

40

2150

5

48

M56

(2 1/4")

62

719

*) Outer dimameter of pipe corresponds to ISO
    recommendation R64.
    Material (to be specified by orderer):
    St. 37-2 by DIN 17100 for temperature 300 °C
Weldable heat-treated steel for temperature > 300 °C.
Process: Machining the outside diameter, bore, gasket surface, bevel end for welding, and bolt holes.