Regular Inspection: Check the filter regularly for visible signs of clogging or damage. A blocked filter can hinder system performance and can be detrimental to subsequent fine filters.
Final Pressure Drop: According to the EN 13053 standard, the final pressure drop is determined. ISO Coarse class is calculated by adding 50 Pascal (Pa) to the initial pressure drop of clean filters or by calculating a value up to three times smaller than the initial pressure drop of clean filters. ISO ePM1, ISO ePM2.5, and ISO ePM10 classes is calculated by either adding 100 Pascal (Pa) to the initial pressure drop of clean filters or by calculating a value up to three times smaller than the initial pressure drop of clean filters.
This method is used to determine a recommended final pressure drop value at the end of the filter’s service life.
Correct Installation: Ensure the filter is correctly installed, following the manufacturer’s directions. An improperly installed filter can compromise its effectiveness. The filter pleats or pockets must be mounted vertically on the ground.
Maintain a Stock: These filters are recommended to be kept in stock as they hold the most particles and require the highest replacement frequency compared to other stage filters. Always keep a replacement on hand to ensure minimal downtime during replacements.
Washing or Cleaning: Most of the coarse filters are designed for single use, some of the types might be washable or cleanable. It’s essential to refer to the manufacturer’s guidelines. However, repeated cleaning can reduce the filter’s efficiency, so always ensure it’s still performing as needed.
