Nominal Pipe Size Tables
- Last UpdatedNov 10, 2025
- 1 minute read
As explained in Outputting Parts of Specifications, PDMS holds tables of nominal pipe sizes which it uses in preference to actual sizes if an actual and a nominal size fall within a predefined tolerance band. These tables comprise the following diameters:
|
Metric Units |
Imperial Units |
Metric Units |
Imperial Units |
|---|---|---|---|
|
6.0 |
0.125 |
1100.0 |
44.0 |
|
8.0 |
0.250 |
1150.0 |
46.0 |
|
10.0 |
0.375 |
1200.0 |
48.0 |
|
15.0 |
0.500 |
1250.0 |
50.0 |
|
20.0 |
0.750 |
1300.0 |
52.0 |
|
25.0 |
1.00 |
1350.0 |
54.0 |
|
32.0 |
1.25 |
1400.0 |
56.0 |
|
40.0 |
1.50 |
1450.0 |
58.0 |
|
50.0 |
2.00 |
1500.0 |
60.0 |
|
65.0 |
2.50 |
1600.0 |
64.0 |
|
80.0 |
3.00 |
1650.0 |
66.0 |
|
90.0 |
3.50 |
1700.00 |
68.0 |
|
100.0 |
4.00 |
1750.0 |
70.0 |
|
125.0 |
5.00 |
1800.0 |
72.0 |
|
150.0 |
6.00 |
1850.0 |
74.0 |
|
200.0 |
8.00 |
1900.0 |
76.0 |
|
250.0 |
10.0 |
1950.0 |
78.0 |
|
300.0 |
12.0 |
2000.0 |
80.0 |
|
350.0 |
14.0 |
2050.0 |
82.0 |
|
400.0 |
16.0 |
2100.0 |
84.0 |
|
450.0 |
18.0 |
2200.0 |
88.0 |
|
500.0 |
20.0 |
2400.0 |
96.0 |
|
550.0 |
22.0 |
2600.0 |
104.0 |
|
600.0 |
24.0 |
2800.0 |
152.0 |
|
650.0 |
26.0 |
3000.0 |
120.0 |
|
700.0 |
28.0 |
3200.0 |
128.0 |
|
750.0 |
30.0 |
3400.0 |
136.0 |
|
800.0 |
32.0 |
3600.0 |
144.0 |
|
850.0 |
34.0 |
3800.0 |
152.00 |
|
900.0 |
36.0 |
4000.0 |
160.0 |
|
950.0 |
38.0 |
||
|
1000.0 |
40.0 |
||
|
1050.0 |
42.0 |