Hydraulic Filtration Calculator

Calculate filter Beta ratio efficiency, ISO cleanliness targets, and filter element life for hydraulic systems.

Beta ratio (βx)

System flow rate (GPM)

Filter micron rating (µm)

System oil volume (gal)

Element dirt capacity (g)

Contamination rate (mg/min)

Operating pressure (PSI)

Tab to move between fields

Filtration efficiency (%)

99.5

Target ISO cleanliness code16

System turnovers/hr18

Passes to reach target919

Cleanup time (min)3,063.3

Filter element life (hrs)50

Clean element ΔP (PSI)5

Changeout ΔP (PSI)15

Filter Location2

Flow Utilization100%

How to Use This Calculator

Enter Beta ratio (βx), System flow rate (GPM), and Filter micron rating (µm).
Set System oil volume (gal), Element dirt capacity (g), and Contamination rate (mg/min).
Adjust Operating pressure (PSI) as needed.
Review the Filtration efficiency (%) result.
Use Target ISO cleanliness code and System turnovers/hr to inform your decision.

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