Flow Source
The Flow Source
is the starting point for systems such as gas, water, fire, and drainage.
It represents the connection to a main supply or an existing point in the network where system connects, and the calculations will begin.
The Flow Source
is crucial for defining the initial conditions of the systemโs calculations, such as the Pressure
and Height
.
How It Works
Placement:
Click on the
Flow Source
symbol in the toolbar andleft-click
to place it at the desired location.You can move it by left-clicking and dragging.
Define Properties:
Name
: Assign a meaningful name in the properties for easy identification.Flow System
: Specify the type of system (e.g., water, fire, gas) if you donโt want the default.Define Key Properties:
For Water/Fire systems:
Residual Pressure
: Enter the lowest expected pressure at the connection point. This value is used for downstream, peak flow calculations.Static Pressure
: Input the maximum expected pressure at the connection point. This value is used for static demand calculations.Height
: Enter the height of the flow source relative to the systemโs reference level. Ensure this value correlates accurately with your level settings.For Gas systems:
Pressure
: Enter the lowest expected pressure at the connection point. This value is used for calculations to determine sizing required to provide enough pressure to your appliances.Height
: Enter the height of the flow source relative to the systemโs reference level. Ensure this value correlates accurately with your level settings.Connections:
Pipes
become solid with visible flow arrows when connected to theFlow Source
properly. Semi-transparent pipes indicate they are not connected.
Troubleshooting
Verify Properties
Check the Residual Pressure
and Static Pressure
values to ensure they align with the expected supply conditions.
Confirm the Height
value is correctly set relative to your systemโs floor Level
.
For example, a Level
at 50 feet and a Flow Source
at -1 feet means there is a 51-foot difference. You likely should enter 49 feet as the Flow Source
height to align correctly.
Check Connections
Properly connected pipes appear solid with visible flow arrows. Semi-transparent pipes indicate a disconnection.