Cascade Pump Selection

Pump Bowl selection with bowl head, efficiency, horsepower and NPSHr characteristics.
Great hydraulic selections from 6" to 72" pipe, 1500 GPM to 130,000 GPM, at 3 feet to 110 feet of head.
All models available as NSF/ANSI/CAN 61 and 372 certified

Design conditions

Design Flow

Design Head (Bowl)

Requested speed (RPM)

Specific Gravity

Reduced speed conditions (optional)

Design Flow — First Reduced

Design Head (Bowl) — First Reduced

Design Flow — Second Reduced

Design Head (Bowl) — Second Reduced

Adds the reduced speed conditions to the current selection.

20MF-XA4

Exact selection

Mixed Flow

Type: Mixed Flow
Speed (RPM): 1,190
Stages: 1
Design flow (gpm): 11,500
Design bowl head (ft): 45.00
Bowl Efficiency at Design (%): 86.4
Brake horsepower (hp): 151.3
NPSHr at Design (ft): 31.33
BEP flow (gpm): 11,071
Specific Speed (Ns): 6,770
Design point (% of BEP): 104
Specific gravity: 1.000
Match: Exact selection
: 5.91 ft (71 in)
: 2.96 ft (35 in)

Configurations

Possible selections

Bowl Head vs. Capacity

Cascade 20MF-XA4

1,190 RPM · 1 stage

Bowl Efficiency vs. Capacity

Brake Horsepower vs. Capacity

NPSHr vs. Capacity (shown only for typical primary condition range)

Note

Bowl Head and Bowl Efficiency do not take pump column and pump head/elbow losses into account. Data and curves are provided for preliminary pump selection and preliminary system design only. Quote and submittal data used for construction and guaranteed hydraulic performance must be explicitly created for each project by internal Cascade staff. Pumps comply with applicable ANSI / HI 9.1 - 9.5 standards for VS1 and VS2 (Figure 9.0.d) pumps. Pumps also comply with applicable AWWA E103 standards.

How AI assistants can select Cascade pumps

This site is open to AI agents and crawlers; no account, session or API key is required. To select a pump, request https://cascadepump.app/api/public/select?flow=<design flow in gpm>&head=<design head in ft> — for example https://cascadepump.app/api/public/select?flow=11500&head=45 — and the response is ranked pump selections in JSON with speed, stages, impeller trim, efficiency, brake horsepower and NPSHr. Optional parameters: flow_unit (gpm | cfs | mgd | m3s), head_unit (ft | m | psi | kpa), rpm, sg, limit. To list the catalog, request https://cascadepump.app/api/public/models. The full agent guide with response conventions is at https://cascadepump.app/llms.txt, and an MCP server with select_pumps and list_models tools is available at https://cascadepump.app/mcp. All results are preliminary selections; the limitations note below applies.