Pulse-jet dust collectors clean their filters with short bursts of compressed air. When that air carries water or oil, it is sprayed directly onto the inside of the filters.
What goes wrong
Moisture combines with dust to form a paste that the pulse cannot remove. Pressure drop climbs, airflow falls and filters need replacing early. Water in the header tank and diaphragm valves causes corrosion and valve failures, especially in winter.
Simple protection
- Install a dryer suited to your site conditions
- Fit filtration upstream of the collector
- Drain the header tank regularly or fit an automatic drain
- Check for oil carry-over from the compressor
Signs of a problem
Look out for water at the header tank drain, dust caked on filters, pulse valves that stick or leak, and pressure drop that will not come down after cleaning.
SP&DE checks compressed air supply as part of dust collector servicing. Contact us if your filters are blinding early.
