Represents the largest single stud agency's standard flow usually between 0.1-0.3l/s.
Refers to the average flow through the valve in question, which in normal cases may be seen as a constant.
Refers to likelihood that the average flow is used during peak consumption. Can normally be seen as a constant.
Sum of tap water standard flows in line to be dimensioned.
The sum of the possible constant tap water flows in the system.
A correction factor based on how much uncertainty in how often the design flow is exceeded. Under normal conditions added uncertainty to 0,001.
| Uncertainty | Correction factor |
| 0,01 | 2,3 |
| 0,001 | 3,1 |
| 0,0001 | 3,7 |
The flow goes through the line at any one time also commonly referred to as a design flow.
| Likely flow: |  |
|---|