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Sego Canada Inc
Pump Sizing Calculator
Pump Sizing Calculator
Enter your system parameters below to get pump specifications, NPSH analysis, and equipment recommendations.
Application Type
System Parameters
GPM
ft (max ~25 ft for centrifugal)
ft — elevation pump must push fluid up
ft — include suction + discharge
Cavitation Check (NPSHa)
Net Positive Suction Head analysis prevents cavitation — one of the most common and costly pump failures.
Affects atmospheric pressure
Vapour pressure of fluid
ft — from pump datasheet (typical: 5–20 ft)
System Results
Estimated pump efficiency: —
System Curve — Head vs. Flow
NPSH / Cavitation Analysis
NPSHa should exceed NPSHr by at least 2–3 ft safety margin. If NPSHa is marginal, consider lowering the pump, shortening suction pipe, or using a submersible.
Recommended Pump Types
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