Pipe labels and sizing
All aquatherm piping systems are manufactured based on metric units of measurement. In order to make the systems more intuitive to the North American market, aquatherm has converted each of its standard pipe sizes into a nominal Imperial unit, based on comparable size and flow rate. The following table gives the accepted nominal Imperial size for each metric size of pipe. Unless additional engineering allows for a downsizing of the pipe, aquatherm recommends using this nominal pipe sizing as an equivalent to systems made from other materials.
Pipe Sizing
Manufactured
Metric OD | Equivalent
Imperial ID |
| 16 mm |
3/8" |
| 20 mm |
1/2" |
| 25 mm |
3/4" |
| 32 mm |
1" |
| 40 mm |
1 1/4" |
| 50 mm |
1 1/2" |
| 63 mm |
2" |
| 75 mm |
2 1/2" |
| 90 mm |
3" |
| 110 mm |
3 1/2" |
| 125 mm |
4" |
| 160 mm |
6" |
| 200 mm |
8" |
| 250 mm |
10" |
Note: The units have been converted from sizing based on OD to sizing based on ID. Metric OD will always be printed on the pipe and fittings.
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