Importing Pressure Pipes
The following rules and considerations govern the importing of pressure pipe elements from SWMM:
Import Rules
- All Conduits of the type "force main" will be imported as pressure pipes regardless of their position in the SWMM network.
- A SWMM junction is converted to a pressure junction if all bounding links are pressure links. Pressure links are as follows:
- Conduits of shape "force main".
- SWMM pump links.
- If a catchment is emptying into a SWMM junction, that junction will be turned into a manhole regardless of its position in the system. A user notification will be generated.
- On the import of a SWMM pump link, two links are created to connect the pump node to the system:
- If the discharge node is a pressure junction - two virtual pressure links are created;
- Otherwise two virtual conduits are created.
Pressure Pipe Considerations
- Diameter directly translates.
- The roughness value will be entered into Manning's, DarcyWeisbach, or Hazen Williams depending on which SWMM Pressure Roughness method is selected in the calculation options.
- "Number of Barrels" data is NOT imported.
Presssure Junction Considerations