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Dn Diametre Nominel per ISO vs NPS Nominal Pipe Size
Fluids Flow Design and Engineering
Metric Pipe Sizes Dn "Diametre Nominel" per ISO vs NPS "Nominal Pipe Size" Equivalent for DN 6 to DN 2200, NPS Schedule 80 to XXS / XXH
Welded and Seamless Pipe
NPS |
DN |
OD |
Wall Thickness |
|||||
Sch 80 |
Sch 100 |
Sch 120 |
Sch 140 |
Sch 160 |
XXS / XXH |
|||
1/8” |
6 |
0.404 |
0.095 |
-- |
-- |
-- |
-- |
-- |
1/4” |
8 |
0.540 |
0.119 |
-- |
-- |
-- |
-- |
-- |
3/8” |
10 |
0.675 |
0.126 |
-- |
-- |
-- |
-- |
-- |
1/2” |
15 |
0.840 |
0.147 |
-- |
-- |
-- |
0.188 |
0.294 |
3/4” |
20 |
1.050 |
0.154 |
-- |
-- |
-- |
0.219 |
0.308 |
1” |
25 |
1.315 |
0.179 |
-- |
-- |
-- |
0.250 |
0.358 |
1-1/4” |
32 |
1.660 |
0.191 |
-- |
-- |
-- |
0.250 |
0.382 |
1-1/2” |
40 |
1.900 |
0.200 |
-- |
-- |
-- |
0.281 |
0.400 |
2” |
50 |
2.375 |
0.218 |
-- |
0.250 |
-- |
0.344 |
0.436 |
2-1/2” |
65 |
2.875 |
0.276 |
-- |
0.300 |
-- |
0.375 |
0.552 |
3” |
80 |
3.500 |
0.300 |
-- |
0.350 |
-- |
0.438 |
0.600 |
3-1/2” |
90 |
4.000 |
0.318 |
-- |
-- |
-- |
-- |
0.636 |
4” |
100 |
4.500 |
0.337 |
-- |
0.437 |
-- |
0.531 |
0.674 |
4-1/2” |
115 |
5.000 |
0.355 |
-- |
-- |
-- |
-- |
0.710 |
5” |
125 |
5.563 |
0.375 |
-- |
0.500 |
-- |
0.625 |
0.750 |
6” |
150 |
6.625 |
0.432 |
-- |
0.562 |
-- |
0.719 |
0.864 |
7” |
-- |
7.625 |
0.500 |
-- |
-- |
-- |
-- |
0.875 |
8” |
200 |
8.625 |
0.500 |
0.593 |
0.719 |
0.812 |
0.906 |
0.875 |
9” |
-- |
9.625 |
0.500 |
-- |
-- |
-- |
-- |
-- |
10” |
250 |
10.75 |
0.593 |
0.718 |
0.843 |
1.000 |
1.125 |
-- |
12” |
300 |
12.75 |
0.687 |
0.843 |
1.000 |
1.125 |
1.312 |
-- |
14” |
350 |
14.00 |
0.750 |
0.937 |
1.093 |
1.250 |
1.406 |
-- |
16” |
400 |
16.00 |
0.843 |
1.031 |
1.218 |
1.437 |
1.593 |
-- |
18” |
450 |
18.00 |
0.937 |
1.156 |
1.375 |
1.562 |
1.781 |
-- |
20” |
500 |
20.00 |
1.031 |
1.280 |
1.500 |
1.750 |
1.968 |
-- |
22” |
550 |
22.00 |
1.125 |
1.375 |
1.625 |
1.875 |
2.125 |
-- |
24” |
600 |
24.00 |
1.218 |
1.531 |
1.812 |
2.062 |
2.343 |
-- |
26” |
650 |
26.00 |
-- |
-- |
-- |
-- |
-- |
-- |
28” |
700 |
28.00 |
-- |
-- |
-- |
-- |
-- |
-- |
30” |
750 |
30.00 |
-- |
-- |
-- |
-- |
-- |
-- |
32” |
800 |
32.00 |
-- |
-- |
-- |
-- |
-- |
-- |
34” |
850 |
34.00 |
-- |
-- |
-- |
-- |
-- |
-- |
36” |
900 |
36.00 |
-- |
-- |
-- |
-- |
-- |
-- |
40” |
1000 |
40.00 |
-- |
-- |
-- |
-- |
-- |
-- |
42” |
1050 |
42.00 |
-- |
-- |
-- |
-- |
-- |
-- |
44” |
1100 |
44.00 |
-- |
-- |
-- |
-- |
-- |
-- |
46” |
1150 |
46.00 |
-- |
-- |
-- |
-- |
-- |
-- |
48” |
1200 |
48.00 |
-- |
-- |
-- |
-- |
-- |
-- |
52” |
1300 |
52.00 |
-- |
-- |
-- |
-- |
-- |
-- |
56” |
1400 |
56.00 |
-- |
-- |
-- |
-- |
-- |
-- |
60” |
1500 |
60.00 |
-- |
-- |
-- |
-- |
-- |
-- |
64” |
1600 |
64.00 |
-- |
-- |
-- |
-- |
-- |
-- |
68” |
1700 |
68.00 |
-- |
-- |
-- |
-- |
-- |
-- |
72” |
1800 |
72.00 |
-- |
-- |
-- |
-- |
-- |
-- |
76’ |
1900 |
76.00 |
-- |
-- |
-- |
-- |
-- |
-- |
80” |
2000 |
80.00 |
-- |
-- |
-- |
-- |
-- |
-- |
88” |
2200 |
88.00 |
-- |
-- |
-- |
-- |
-- |
-- |
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