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Plant Engineering Calculator

Updated Sep 18, 2026

Condensate Receiver Level Band Calculator — Pump Cycle Volume & Runtime

Calculate receiver volume between pump start/stop levels, fill time, pump-out time and approximate cycles per hour from return and pump rates.

Live calculationWorking shownPrivate in browser

Inputs

Results

Cycle-band volume 0.6 m³
Fill time 6 min
Pump-out time 4 min
Approx cycles/hour 6
More actions

Shared links reopen these inputs. Recent and saved calculations stay in this browser unless you clear site data.

Formula

Vband=Vtank×(high−low); fill=Vband/Qreturn; pumpout=Vband/(Qpump−Qreturn).

Your calculation, step by step

These steps use the values currently entered above so the result can be checked independently.

  1. 1.Cycle volume = 2 × (65% − 35%) = 0.6 m³.
  2. 2.Fill time = 0.6 ÷ 6 × 60 = 6 min.
  3. 3.Net pump-out flow = 15 − 6 = 9 m³/h; pump-out = 4 min; cycles/hour = 6.

How to use this calculator

  1. Enter measured or design values using the units shown beside each field.
  2. Review the live results and the substituted calculation steps before using the estimate.
  3. Check the assumptions below, then continue to a related calculator when the next engineering decision needs another model.

Worked example

A 2 m³ receiver with a 30% level band stores 0.6 m³ per cycle.

Assumptions and limits

  • Pump capacity must exceed return flow during pump-out.
  • Linear level-volume assumption should be replaced by vessel calibration when needed.

How to interpret the result

Treat the primary result as an engineering screening value, then use the secondary outputs to understand scale, energy or operating impact. Confirm site measurements, equipment limits and applicable standards before making a design or control change.

Questions engineers ask

Why must pump capacity exceed condensate return flow?

During pump-out the receiver is still filling. Net drawdown is pump flow minus incoming return flow; if that difference is zero or negative, the level cannot fall through the control band.

What drives excessive condensate-pump cycling?

A narrow usable level band, small receiver, high return flow or oversized pump can shorten cycles. Controls, minimum run time and actual vessel geometry also matter.

Can I use level percentage directly for a horizontal receiver?

Only as a rough screen. Horizontal cylindrical and irregular receivers have nonlinear level-to-volume behavior; use a calibrated volume curve for cycle-volume calculations.

Continue the calculation

Use the next calculator in the same engineering workflow instead of restarting from search.

condensate receiver sizingcondensate returncondensate pipe sizing
Methodology. MAXScanner shows the governing formula, entered values and calculation outputs so the estimate is auditable. The calculator is a screening aid; assumptions and equipment-specific limits remain part of the engineering review.