Useful Information
Pipe Classification:
| PN | 10 | 16 | 20 | 25 |
|---|---|---|---|---|
| SDR | 11 | 7.4 | 6 | 5 |
| S | 5 | 3.2 | 2.5 | 2 |
Where:
PN: Nominal Pressure in Bar
SDR: Standard Dimension Ratio which is the ratio between the pipe outside diameter and the wall thickness.
S: Dimensionless number which calculated as follows:
S=1/2*[(d/t)-1]
where:
d: is the pipe outside diameter
t: is the wall thickness.
Dimensions:
| mm | 20 | 25 | 32 | 40 | 50 | 63 | 75 | 90 | 110 |
|---|---|---|---|---|---|---|---|---|---|
| INCH | 1/2 | 3/4 | 1 | 1.1/4 | 1.1/2 | 2 | 2.1/2 | 3 | 4 |