Pump Data Fields (SWMM)
Pumps are used to model the pumping of fluid to higher elevations in the network.
Pump data can be edited on either the Pump Grid Window of the Links Grid or the Pump Property Sheet.
To view and edit all conduit data, use the Property Sheet.
This table describes all the pump specific data which can be used to define a pump for a SWMM network. For details of results fields, see the Link Results Data Fields (SWMM) topic.
Common Data Fields Fields that are common to the majority of objects can be found in the Common Fields topic.
Pump Data
Database Table Name: sw_pump
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Show Columns |
Database Names |
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Size, Type and Units |
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Defaults and Error Limits |
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Field Name |
Help Text |
Database Field |
Size |
Precision |
Default |
Error Lower Limit |
Error Upper Limit |
Warning Lower Limit |
Warning Upper Limit |
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| Link ID |
A unique name or identifier for this pump. This name cannot be used by any other network object on the Links grid. |
id | Text | 254 | 0 | ||||||
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Start node |
The name of the upstream node that the inlet side of the pump is attached to. Any nodes already defined can be selected from the dropdown list. |
us_node_id |
Text |
254 |
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0 |
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End node |
The name of the downstream node that the outlet side of the pump is attached to. Any nodes already defined can be selected from the dropdown list. |
ds_node_id |
Text |
254 |
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0 |
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Branch ID |
Numeric field used to identify to which long section the link is associated. Can be set manually or automatically (see Defining Branches topic for more information). |
branch_id |
Long Integer |
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0 |
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0 |
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0 |
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| Ideal pump |
A check box which indicates whether or not this is an ideal pump. Unchecked (not ideal) by default. An ideal pump is a transfer pump whose flow rate equals the inflow rate at its start node, and this pump must be the only outflow link from that node. |
ideal | Boolean | False | |||||||
| Pump curve ID |
Displayed only when Ideal pump is unchecked. The name of the curve which defines the relationship between the flow rate and conditions at the inlet (upstream) and outlet (downstream) sides of this pump. Any pump curves already defined can be selected from the dropdown list.
Alternatively, a new one can be added or an existing one modified using the |
pump_curve | Text | 254 | 0 | ||||||
| Startup depth | The depth of flow at the start node at which the pump starts to operate. | start_up_depth | Double | Y | 3 | 0 | |||||
| Shutoff depth | The depth of flow at the end node at which the pump stops operating. | shut_off_depth | Double | Y | 3 | 0 | |||||
| Initial status | The initial status of the pump. This can be set to On (default) or Off. | initial_status | Text | 4 | 0 | On |
button located to the left of the field. This displays the 