Flanged joints - Duktus
Flanged joints - Duktus
Flanged joints - Duktus
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<strong>Flanged</strong> <strong>joints</strong><br />
acc. to DIN EN 1092-2<br />
Bolt hole configuration<br />
4 holes 8 holes 12 holes 16 holes<br />
DN<br />
Number of bolts acc. to DIN EN 1092-2<br />
PN 10 PN 16 PN 25 PN 40<br />
40 4 4 4 4<br />
50 4 4 4 4<br />
65 4 4 8 8<br />
80 8 8 8 8<br />
100 8 8 8 8<br />
125 8 8 8 8<br />
150 8 8 8 8<br />
200 8 12 12 12<br />
250 12 12 12 12<br />
300 12 12 16 16<br />
(350) 16 16 16 16<br />
400 16 16 16 16<br />
500 20 20 20 20<br />
600 20 20 20 20<br />
700 24 24 24 –<br />
800 24 24 24 –<br />
900 28 28 28 –<br />
1000 28 28 28 –<br />
In principle, no bolt holes are allowed to come in the flange axis running perpendicular to the pipeline level.<br />
Chapter 4<br />
53
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