Maximum values are boundary values
Maximum flow is commonly measured near zero load, while maximum pressure or vacuum appears when flow is very low. A stable equipment condition usually sits between those limits.
Ask for the operating point or curve whenever the design depends on a specific flow at a specific pressure or vacuum.
System resistance moves the point
Long tubing, small fittings, fine filters and valves can move the pump away from the brochure value. Selection should review those restrictions early.
Frequently asked questions
Can I use maximum flow for my design?
Only when your system load is close to the test condition. Most OEM equipment should use loaded-flow validation.
Related products and engineering resources
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