Pressure and flow are different requirements
Pressure is the force needed to operate the process; flow is the volume of air consumed. A machine can show acceptable pressure with no demand and then collapse when tools operate because the system cannot deliver enough flow. Both figures must be confirmed together.
Work backwards from the point of use
Record the minimum pressure each critical machine requires while running. Add the expected pressure loss across dryers, filters, valves and the distribution network. The compressor discharge set point should provide the required point-of-use pressure without an excessive safety margin.
Do not hide pipe problems with a higher set point
Small pipe diameters, long dead-end runs, clogged filters and undersized fittings create pressure loss. Increasing compressor pressure may mask the symptom but raises energy consumption and system stress. A ring main, larger headers, better drops or local storage can be the more economical correction.
Separate exceptional high-pressure users
If one process requires much higher pressure than the rest of the factory, consider a dedicated high-pressure compressor or booster. Running every consumer at the exceptional pressure and regulating down wastes energy and can increase leakage.
Check equipment ratings and safety
The compressor, receiver, dryer, filters, valves, hoses and pipework must all be rated for the maximum possible system pressure. Safety devices and statutory inspection requirements must be considered. Never increase a pressure setting beyond equipment ratings to chase performance.
How we help establish the pressure band
We review process manuals, current set points, pressure at the compressor and pressure at critical users under load. The final recommendation includes a practical load/unload or VSD pressure band and identifies avoidable losses in the treatment and pipe network.
Use the free calculators
Build an initial estimate for compressor demand, receiver size and electricity cost, then send the result to our team for verification.
Frequently asked questions
Possibly, but only after allowing for real treatment and distribution losses. Confirm compressor FAD at the selected pressure.
The cause may be insufficient flow, restricted pipework, clogged treatment equipment or inadequate local storage.
Yes, where appropriate, but the main system should still operate at the lowest practical pressure for the highest legitimate requirement.
Technical references
This guide is educational and uses principles reflected in manufacturer and industry guidance. Final equipment selection must be checked against the selected model’s data sheet and site conditions.