NumloomCalculation setup — values are entered in Runner.Preview

Peristaltic pump flow rate to RPM

Set these parameters: “Volume per revolution”. In Numloom, enter “Required volumetric flow rate” (mL/min) to obtain “Pump rotational speed” (rpm).

Calculations currently require access to Numloom on Google Play Internal Testing. iPhone and iPad support is planned.

Open this calculation on your phone

Scan with an Android camera. If Numloom is installed, the HTTPS link opens the calculation in Runner. Installation currently requires access to the Google Play internal test. After installation, launch Numloom normally; if the calculation is not restored, open this link again.

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1Parameters

Editable starting values, not standards or manufacturer recommendations. Check the values for your material or equipment.

How it works

Pump rotational speed = Required volumetric flow rate ÷ Volume per revolution

In Numloom: “Required volumetric flow rate” → “Pump rotational speed”.

mL/min → rpm

Volume per revolution · mL/rev

This page shows the formula and parameters. The calculation runs in Numloom.

Assumptions and limits

Calculation basis: “Required volumetric flow rate” (mL/min) → “Pump rotational speed” (rpm). Use the parameters shown for this particular operation.

Measure the displacement of this pump under its operating conditions. Revolutions, pulses, strokes, volume and flow are different quantities; the coefficient is not universal.

Enter a non-negative value in the app.

Coefficient sources

Initial settings: Volume per revolution = 2 mL/rev (demonstration value).

These starting values are not a standard, calibration certificate or manufacturer recommendation. Replace them with values measured for your process or specified for your product.

Related calculations · PreviewPeristaltic pump RPM to flow rateDosing pump pulses to volumeDosing pump stroke rate to flow rate

Calculations currently require access to Numloom on Google Play Internal Testing. iPhone and iPad support is planned.

Open this calculation on your phone

Scan with an Android camera. If Numloom is installed, the HTTPS link opens the calculation in Runner. Installation currently requires access to the Google Play internal test. After installation, launch Numloom normally; if the calculation is not restored, open this link again.

Enable JavaScript to check this link.