Inputs
- System volume
- Start pressure
- End pressure
- Decay time
- Optional average demand
Leak rate
Pressure Decay Leak Rate Calculator
Estimate leak rate from system volume, pressure drop, and elapsed time when production demand is isolated.
Leak rate
Run the calculation
Estimate leak rate from system volume, pressure drop, and elapsed time when production demand is isolated.
Engineering visual
Pressure Decay Leak Rate Calculator calculation map
The receiver stores compressed air between high and low pressure limits while supply and demand flows enter and leave the vessel.
- 01System volume
- 02Calculate and compare
- 03Leak flow
Calculation reference
What this tool checks.
The calculation uses the pressure drop in a known receiver and piping volume to estimate free-air leakage.
Outputs
- Leak flow
- Leak as percent of demand
- Pressure drop
- SCFM
Engineering guide
Use the result with the right context.
Calculate pressure decay leak rate calculator from application data and interpret the result for preliminary pneumatic engineering review.
Enter the known application values, including System volume, Start pressure, End pressure.
Run the calculation using one consistent set of units and reference conditions.
Review Leak flow, Leak as percent of demand, Pressure drop, then compare the result with the component datasheet and application margin.
Keep standard, free-air, and actual compressed-volume reference states consistent throughout the calculation.
Confirm compressor, dryer, filter, receiver, pipework, ambient, and operating schedules with measured plant data.
How the Pressure Decay Leak Rate Calculator works
This calculator turns System volume, Start pressure, End pressure into Leak flow, Leak as percent of demand, Pressure drop. The governing relationship remains visible in the dedicated formula area so the result can be checked against a worksheet, supplier data, or measured machine values.
How to interpret the result
Use the output as a transparent first-pass engineering estimate, not an automatic product approval. Compare the calculated value with available catalog ratings, transient conditions, installation losses, service environment, and a safety margin appropriate to the machine risk.
Limits and verification
Keep standard, free-air, and actual compressed-volume reference states consistent throughout the calculation. Confirm compressor, dryer, filter, receiver, pipework, ambient, and operating schedules with measured plant data. The final selection remains subject to the actual component datasheet, applicable standards, and validation on the installed system.
FAQ