Pump and Monitor Duty Check

Check stated pump flow against concurrent outlets and monitor demand at an agreed condition before documenting the duty test and evidence.

Version: 1.0
Reviewed: 2026-09-04
Category: Calculation
Publisher: KEEYAK

Review contacts: Isa and Alicia June.

Local-only worksheetInputs stay in this browser tab. Nothing is sent or stored.

Calculation inputs

Quoted pump flow at stated duty point (L/min)Monitor demand (L/min)Concurrent handline demand (L/min)Other concurrent demand (L/min)

Arithmetic flow reserve—Quoted flow − monitor demand − handline demand − other demand

Enter every input in the first group. Use 0 only for a confirmed zero quantity.

How to use this tool

The arithmetic reserve does not prove pressure, suction, piping loss, stability or installed-system performance.

Enter all concurrent planned demands at the same operating scenario.
State the required pressure and suction condition in the retained worksheet.
Witness the installed-system duty point during acceptance.

Keep a record of your inputs

Add the project ID, responsible person, date and revision before using the worksheet to compare suppliers or make a technical decision. Record where each input came from. Leave unknown values open for confirmation; do not fill a gap with an assumed catalogue figure.

The result helps with calculation or recordkeeping only. A competent reviewer must check the units and operating conditions against the selected equipment documents. That review must also cover destination requirements, interactions between systems and the evidence needed at acceptance.

Assumptions and limits

All flows must refer to the same scenario and compatible pressure basis.
A positive result is not a pump or installed-system performance certificate.