Pressure fluctuation is usually a control or demand problem. Stable pressure matters for tools and processes, so finding the cause is worthwhile.
Common Causes
- Demand varies faster than the compressor responds.
- Too little storage tank capacity.
- Control band or VSD settings are wrong.
Diagnosis
- Log pressure during a production cycle.
- Check the load/unload band.
- Look for intermittent high-flow users.
Fixes
- Add storage or widen the control band.
- Adjust VSD response settings.
- Move high-flow users to a separate receiver.
Does a bigger tank stop pressure fluctuation?
It helps by absorbing demand spikes, giving the compressor time to respond.
Talk to an Engineer
Contact Panrui with your flow, pressure and air quality requirements to get a recommendation and factory quote for your project.