KVT GmbH Kirchzarten KVT GmbH Kirchzarten KVT GmbH Kirchzarten
KVT GmbH Kirchzarten KVT GmbH Kirchzarten KVT GmbH Kirchzarten

Screwed pipe connections DIN 11851

Application:

Screwed pipe connections acc. DIN 11851 are used in process facilities for liquid media, e.g. food and beverage plants.

They consist of

- threaded ferrule,
- gasket,
- conical ferrule and
-
nut.

Assembly:

During the assembly the gasket is put into the groove of the threaded ferrule. After that the conical ferrule is put against the threaded ferrule.

By assembling the nut, both ferrules and the gasket are pressed together.

Features of a screwed pipe connection acc. DIN 11851:

max. operating pressure:


DN 10 - DN 40:

max. 40 bar

DN 50 - DN 100

max. 25 bar

DN 125 - DN 150:

max. 16 bar

Thread:

For the threads DIN 405 is used.

Nominal
Pipe
Size

thread
acc.
DIN 405

outside
diameter
[mm]

diameter
of bolt

[mm]

diameter
of screw
[mm]

pitch
[mm]

threads
/
Inch

10

28 x 1/8"

28,318

24,825

25,142

3,175

8

15

34 x 1/8"

34,318

30,825

31,142

3,175

8

20

44 x 1/6"

44,423

39,767

40,190

4,233

6

25

52 x 1/6"

52,423

45,767

48,100

4,233

6

32

58 x 1/6"

58,423

53,767

54,190

4,233

6

40

65 x 1/6"

65,423

60,767

61,190

4,233

6

50

78 x 1/6"

78,423

73,767

74,190

4,233

6

65

95 x 1/6"

95,423

90,767

91,190

4,233

6

80

110 x 1/4"

110,635

103,650

104,285

6,350

4

100

130 x 1/4"

130,635

123,650

124,285

6,350

4

125

160 x 1/4"

160,635

153,650

154,285

6,350

4

150

190 x 1/4"

190,635

183,650

184,285

6,350

4

Standards can be bought from www.beuth.de.


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