SWMM - Curves - Pump Curves

Describes the flow variation as a function of load/depth in SWMM Pumps

It is assigned to a SWMM pump when the Constructor (gravity linear) of device associates this to tool Pump

Can also be assigned to pump for a control rule

A pump curve has the following properties:

• Identification
  • Description - Use a friendly description when the item name is not enough
  • Name - name of the item
    Avoid names that are too long, or that contain the following characters: '*', '>', '<', '/', '\', '"', ':', ';', '|', '=', '`', '#', ',', '?'
  • Priority - Information about the current state of the item. It might be:
    • Neutral: no problem
    • Critical: Some issue that prevents the item from being calculated or used
• SWMM
  • Pump Type - Defines pump curve data types:
    1. Incremental Volume/Flow - An off-line wet sump pump where flow increases incrementally with available wet sump volume
    2. Depth/Incremental Flow - An in-line pump where the flow increases incrementally with the depth of the inlet node
    3. Continuous Load/Flow - An in-line pump where the flow varies continuously with the difference in load between the inlet and outlet nodes
    4. Depth/Continuous Flow - A variable speed in-line pump where the flow varies continuously with the depth of the inlet node
    5. Variable Speed - A variable speed version of the Type 3 pump where the head v. flow curve shifts position depending on the pump's speed setting

The data is populated in the table and plotted on the graph for better visualization:

Volume/Depth/Load values must be in ascending order and not repeating and cannot be negative, otherwise the Priority property will be as Critical