Coalescing Filters

Part No: 9.4551.1

Core Technical Specifications

Filtration Grade: FE Ultrafine Submicron Oil Mist Deep Removal Grade

Absolute Filtration Precision: Solid & liquid oil/water aerosols ≥0.01 μm

Filter Media Structure: Multi-layer deep-pleated gradient borosilicate micro glass fiber composite, fitted with outer red anti-static hydrophobic & oleophobic foam sleeve to eliminate liquid re-entrainment

Differential Pressure Replacement Thresholds

Initial pressure drop of new element: ≤0.014 MPa

Mandatory replacement alarm point: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Corrosion-resistant black PA polyamide locking end cap with integrated flow diversion ribs

Seal: Integrated full-circle NBR nitrile rubber gasket, zero air bypass leakage, resistant to compressor oil and acidic condensate aging

Inner & Outer Support Cage: Double-layer perforated 304 stainless steel mesh, anti-collapse under full rated medium-volume continuous airflow

Key Product Advantages

Third-stage ultra-fine polishing barrier to protect downstream activated carbon filters and high-sensitivity production equipment

Installed after KE medium coalescing filter, this FE-grade cartridge intercepts invisible trace submicron oil mist and micro water droplets that medium-grade filters cannot separate. It drastically reduces oil contamination load on terminal KA activated carbon cartridges, extends carbon service life and cuts overall factory spare parts & maintenance costs.

Extra-large oil & liquid holding capacity for stable long-cycle continuous operation

Thick deep-pleated gradient micro glass fiber matrix provides massive dirt & liquid retention volume. It resists rapid pressure rise in high-humidity workshops with underperforming aftercoolers or refrigerated dryers, minimizing unplanned production downtime caused by frequent filter replacement.

Heat-stabilized integrated media, zero fiber shedding to avoid secondary pipeline contamination

Heat-cured solidified microfiber composite combined with double-layer stainless steel support mesh prevents fiber powder detachment under long-term medium-flow airflow impact. No glass fiber debris will block spray guns, laser optical lenses and miniature pneumatic control valves.

Ultra-low permanent differential pressure to reduce air compressor energy consumption

Uniform gradient pore distribution minimizes airflow resistance throughout the full service lifespan. Stable low backpressure reduces continuous power draw of medium screw air compressors and lowers long-term factory electricity expenses.

Working Principle

Medium-clean compressed air flows through the filter cartridge from outside to inside:

Residual large condensed water droplets and fine solid particles are trapped and drained by the outer red hydrophobic foam layer, flowing down to filter bowl via gravity;

Micro submicron oil & water aerosols collide, coalesce and form large separable liquid droplets while passing through multi-layer gradient borosilicate micro glass fiber media;

The outer anti-re-entrainment foam prevents coalesced liquid droplets from being re-carried into high-speed compressed airflow;

Ultra-dry compressed air with extremely low residual liquid oil content flows downstream to activated carbon filter for final oil vapor adsorption treatment.

Application Industries

Precision electronic component assembly workshops, medium electrostatic spray booths, medium laser marking & cutting equipment, pharmaceutical small-batch filling gas supply, laboratory analytical instrument air source, cosmetic filling production lines, food aseptic packaging equipment, automated production lines requiring strict high air purity control.