Coalescing Filters

Part No: 9.2147.0

Core Technical Specifications

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

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

Mounting Type: Integrated double NBR O-ring metal thread quick plug-in connection

Overall Dimension: Length 130 mm, Outer Diameter 70 mm, Net Weight 100 g

Operating Limits

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 3°C ~ 66°C

Standard Replacement Interval

4,000 operating hours under clean industrial conditions; shorten to 2,500–3,000 hours in high-humidity & dusty environments. Replace immediately once differential pressure hits alarm threshold.

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: CNC machined aluminum alloy end caps with built-in thread positioning

Seal: Double integrated NBR nitrile rubber O-rings, zero air bypass leakage, resistant to compressor oil and acidic condensate aging

Key Product Advantages

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

Installed after M medium coalescing filter, this S-grade mini 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 9.2172.0 activated carbon cartridges, extends carbon service life and cuts overall factory spare parts & maintenance costs.

Compact design with sufficient oil & liquid holding capacity for small gas source equipment

Miniature deep-pleated gradient micro glass fiber matrix provides reliable dirt & liquid retention volume. It resists rapid pressure rise in small humid equipment air supply loops, minimizing unplanned equipment 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 stainless steel support mesh prevents fiber powder detachment under long-term tiny airflow impact. No glass fiber debris will block micro spray nozzles, tiny laser optical lenses and miniature precision pneumatic control valves.

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

Uniform gradient pore distribution minimizes airflow resistance throughout the full service lifespan. Stable low backpressure reduces continuous power draw of small 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 blue 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 tiny compressed airflow;

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

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

Micro precision electronic component testing equipment, small lab analytical instruments, mini laser marking machines, cosmetic micro filling equipment, portable electrostatic spray guns, small medical testing gas supply, miniature pneumatic automation test benches, small food sample packaging equipment.