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Air preparation

FRL Flow Capacity Sizing Calculator

Calculate required filter-regulator-lubricator rated flow and compare a selected FRL against peak demand, simultaneity, and reserve. Enter the application values to calculate four decision-ready outputs and review the governing assumptions before selecting equipment.

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Air preparation

Run the calculation

Calculate required filter-regulator-lubricator rated flow and compare a selected FRL against peak demand, simultaneity, and reserve. Enter the application values to calculate four decision-ready outputs and review the governing assumptions before selecting equipment.

Engineering inputsFRL Flow Sizing Calculator

Enter the known application values. Outputs update instantly as units or assumptions change.

Flow unit
Use these values for preliminary sizing before final datasheet review.

Engineering visual

FRL Flow Sizing Calculator calculation path

Compressed air passes through cooling, separation, filtration, and drying stages before the point of use; pressure loss and removed moisture occur at specific stages.

FRL Flow Sizing Calculator calculation pathCompressed air passes through cooling, separation, filtration, and drying stages before the point of use; pressure loss and removed moisture occur at specific stages.COOLERSEPARATORFILTERDRYERUSECONDENSATE / Δp / DEW POINT
  1. 01Summed peak downstream flow
  2. 02Calculate and compare
  3. 03Required FRL rated flow
Required FRL rated flow
Selected FRL utilization
Selected capacity margin
Required rated flow in SCFM

Calculation reference

What this tool checks.

Use the displayed relationship to understand how the entered conditions affect the result. Treat the output as a preliminary selection, then verify actual operating conditions, catalog limits, and safety margin.

Inputs

  • Summed peak downstream flow
  • Flow unit
  • Simultaneous-use factor
  • Sizing reserve
  • Selected FRL rated flow

Outputs

  • Required FRL rated flow
  • Selected FRL utilization
  • Selected capacity margin
  • Required rated flow in SCFM

Engineering guide

Use the result with the right context.

Calculate frl flow sizing calculator for a pneumatic application and compare the result with supplier data.

Calculation workflow

  1. Enter Summed peak downstream flow, Flow unit, Simultaneous-use factor and replace every default with application data.

  2. Run the calculation while keeping pressure, temperature, geometry, and reference states consistent.

  3. Interpret Required FRL rated flow, Selected FRL utilization, Selected capacity margin against the supplier datasheet, machine risk, and an appropriate design margin.

Assumptions and limits

  • Reference pressure, temperature, humidity, and flow basis must stay consistent; standard and actual volume are not interchangeable.

  • Replace default correction factors with measured plant data and supplier ratings before equipment purchase.

FAQ

Common review questions.

01Tool noteWhat does the FRL Flow Sizing Calculator calculate?

Calculate required filter-regulator-lubricator rated flow and compare a selected FRL against peak demand, simultaneity, and reserve. It returns Required FRL rated flow, Selected FRL utilization, Selected capacity margin, Required rated flow in SCFM so the primary answer and its supporting checks stay together.

02Tool noteCan I use the result as a final component selection?

Use it for preliminary engineering and RFQ comparison. Final selection must include supplier ratings, installation losses, transient conditions, applicable standards, machine risk, and validation testing.

03Tool noteWhy can a supplier calculation differ?

Supplier tools may use proprietary test curves, correction factors, rounding, leakage allowances, or reference conditions. Match those conditions and replace the defaults before comparing results.

04Tool noteWhat should I verify after using the FRL Flow Sizing Calculator?

Check the entered units and reference conditions, then compare the calculated outputs with manufacturer ratings, application safety margins, transient loads, installation losses, and measured machine performance.