Recommended sizes, flows, and velocities for steel pipe
Courtesy of Taco, Inc.
Nominal pipe size (inches) |
Minimum flow |
Maximum flow |
||
gal/min |
ft/s |
gal/min |
ft/s |
|
0.75 |
1.8 |
1.1 |
4.0 |
2.4 |
1 |
4.0 |
1.5 |
7.2 |
2.7 |
1.25 |
7.2 |
1.6 |
16 |
3.5 |
1.5 |
14 |
2.2 |
23 |
3.7 |
2 |
23 |
2.3 |
45 |
4.6 |
2.5 |
40 |
2.7 |
70 |
4.7 |
3 |
70 |
3.0 |
120 |
5.2 |
3.5 |
100 |
3.2 |
170 |
5.4 |
4 |
140 |
3.5 |
230 |
5.8 |
5 |
230 |
3.7 |
400 |
6.4 |
6 |
350 |
3.8 |
610 |
6.6 |
8 |
600 |
3.8 |
1200 |
7.6 |
10 |
1000 |
4.1 |
1800 |
7.4 |
12 |
1500 |
4.3 |
2800 |
8.1 |