Coalescing Filters

Part No: B93417

Core Technical Specifications

Filter Media Structure: Multi-layer deep-pleated gradient borosilicate microglass composite, outer red oleophobic & hydrophobic drainage foam layer to eliminate liquid re-entrainment, graded density media for high dirt holding capacity

Operating Limits

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 1.5°C ~ 80°C

Standard Replacement Interval

4,000 operating hours / 12 months under clean industrial conditions; shorten to 2,000–3,000 hours in high-humidity, dusty workshops. Replace immediately once differential pressure hits alarm threshold.

Differential Pressure Replacement Thresholds

Initial pressure drop of new element: ≤0.014 MPa

Mandatory replacement alarm trigger point: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Reinforced black PA polymer locking end cap with integrated flow diversion ribs

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

Inner & Outer Support Cage: Perforated stainless steel protective mesh, anti-collapse under full rated continuous airflow

Key Product Advantages

Third-stage ultra-fine polishing barrier to protect downstream B92970 activated carbon filters and high-sensitivity precision production equipment

Installed after B92247 Grade B medium coalescing filter, this C-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 activated carbon cartridges, extends carbon service life and cuts factory spare parts & maintenance expenses.

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

Thick deep-pleated microglass matrix provides massive liquid retention volume. Special drainage rib structure accelerates liquid separation and discharge, resisting rapid pressure rise in humid production workshops with underperforming aftercoolers or refrigerated dryers, minimizing unplanned production downtime from frequent filter swaps.

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

Heat-cured solidified microglass composite paired with stainless steel support mesh prevents fiber powder detachment under long-term airflow impact. No glass fiber debris will block micro spray nozzles, tiny laser optical lenses and miniature solenoid valves.

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

Uniform gradient pore layout minimizes airflow resistance throughout the full service lifespan. Stable low backpressure cuts continuous power draw of small screw air compressors and lowers long-term factory electricity costs.

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 microglass media;

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

Separated oil and condensate collect at filter bowl and discharge automatically via electronic float auto drain valve;

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

Application Industries

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