How to Selection the Self-Cleaning Air Filters？

Core selection is based on on-site working conditions, air volume demand, filtration standard and installation condition, with matching of material, dust cleaning and control mode.

 Follow the below key points for efficient, low-failure and energy-saving operation:

1. Core Parameters

Air volume: Calculate by actual fresh air volume × 1.1~1.2 leakage coefficient; parallel multiple units if needed, no overloading.

Filtration precision: 5~10μm for general industrial dust removal; 1~5μm for precision equipment/painting workshops.

Working pressure: Normal pressure type (≤5kPa) for regular conditions; pressure-resistant type for high negative/high pressure fans.

Dust cleaning pressure: 0.4~0.6MPa compressed air as standard; select models with integrated air compressor if no on-site air source.

2. Working Condition Adaptation

Dust concentration: Standard model for ≤100mg/m³; pre-separator equipped for ＞100mg/m³; cyclone + self-cleaning double-stage for ＞500mg/m³.

Dust properties: Polyester filter cartridge for dry dust; PTFE coated for high-humidity/viscous dust; wear-resistant cartridge for abrasive dust; glass fiber for high temperature (＞120℃) dust.

Temperature & humidity: Heating/insulation equipped for ≤0℃; 304/316 stainless steel cylinder + fluororubber seal for high-humidity/outdoor/corrosive environments.

Installation space: Vertical/compact model for narrow space; rain cover for outdoor installation.

3. Material & Configuration

Cylinder material: Carbon steel spray coating (regular, cost-effective); 304 stainless steel (high-humidity/light corrosion); 316 stainless steel (strong corrosion/chemical industry).

Dust cleaning mode: Pressure difference + timing dual-mode pulse cleaning (mainstream); offline cleaning for high-precision working conditions.

Control mode: Local PLC control (standard); 485/Modbus communication for central control integration.

Auxiliary configuration: Integrated air compressor (no air source); level gauge + ash discharge valve (high dust); explosion-proof type (explosion-proof scene).

4. Installation Matching

Select vertical/horizontal/ceiling type by space; reserve ≥0.8m maintenance space.

Equip air source with triple unit (water/oil/impurity removal); soft connection between air outlet and fan to reduce vibration.

Install air valve at air inlet for easy maintenance and shutdown.

5. Cost-Effective Principles

No blind pursuit of high configuration; match parameters by actual working conditions.

Add pre-filter for medium-high dust concentration to reduce filter cartridge replacement frequency.

Prioritize universal filter cartridges and easy-to-purchase wearing parts for low later maintenance cost.

6. Quick Selection Steps

Confirm air volume, filtration precision and working pressure;

Clarify dust concentration/properties, temperature/humidity and installation environment;

Match cylinder material, filter cartridge type and dust cleaning mode;

Select auxiliary functions (air compressor, explosion-proof, communication);

Verify installation space, air source and pipeline connection.