Coalescing Filters

Part No: 02250193-591

Core Technical Specifications

Multi-layer gradient borosilicate glass fiber composite media, outer red hydrophobic & oleophobic PU drainage foam. Extra deep pleated design maximizes dirt holding capacity with built-in anti-re-entrainment barrier to prevent separated liquid oil from being carried away by high-speed airflow.

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 1.5°C ~ 80°C

4,000 working hours / 12 months under clean intake air; shorten to 2,000–3,000 hours for dusty spray booths and foundry environments. Mandatory replacement when differential pressure ΔP ≥ 0.07 MPa.

Differential Pressure Replacement Thresholds

Initial pressure drop of new element: ≤0.013 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Cap: Reinforced PA polymer external threaded bayonet lock head with uniform flow diversion ribs

Seal System: Integrated full-circle red NBR nitrile rubber O-ring, zero air bypass, resistant to aging caused by high-temperature compressor oil and acidic condensate

Inner & Outer Support Cage: Single-layer perforated 304 stainless steel mesh, lightweight anti-collapse reinforcement for stable small-medium airflow

Key Product Advantages

Third-stage high-precision polishing protection to greatly extend service life of downstream carbon filters

Installed after F-grade medium coalescer, this FR-grade element captures invisible trace submicron oil mist and micro water droplets that medium filters cannot separate. It drastically reduces liquid contamination load on terminal C1 activated carbon elements, extends carbon service cycle and lowers overall factory spare parts expenditure.

Large dirt & oil holding capacity with stable low differential pressure during long full-load production

Deep-pleated gradient glass fiber matrix stores abundant oil sludge, condensate and solid dust. The outer red foam layer accelerates gravity liquid backflow, slowing pressure rise during continuous heavy-duty operation and reducing unplanned downtime for filter replacement.

Heat-stabilized glass fiber media prevents fiber shedding and secondary pipeline contamination

High-temperature cured borosilicate glass fiber will not soften or pulverize under 80°C oil-gas mixing conditions. No glass fiber debris enters air piping to clog spray guns, laser lenses and proportional solenoid valves.

Low permanent differential pressure design cuts compressor power consumption

Uniform gradient pore layout maintains minimal airflow resistance throughout the full service cycle. Stable low backpressure reduces continuous load on small screw air compressors and lowers long-term workshop electricity costs.

Working Principle

Pre-dried small-medium volume compressed air flows through the filter cartridge from outside to inside:

Residual tiny water droplets and fine solid impurities are trapped by outer red hydrophobic foam and drain into the filter bowl by gravity.

0.01μm oil-water micro-aerosols collide and coalesce into large separable liquid droplets while passing through multi-layer gradient borosilicate glass fiber media.

Outer anti-re-entrainment foam prevents separated liquid oil from being re-carried by high-speed small-medium volume compressed airflow.

Collected oil and condensate are automatically discharged via electronic zero-loss drain valve.

Ultra-clean air with residual liquid oil ≤0.008 mg/m³ flows downstream to C1-grade activated carbon filter for secondary oil vapor removal.

Application Industries

Small & medium automotive component electrostatic spray booths, standard laser marking & cutting production lines, small-scale pharmaceutical aseptic filling workshops, general air supply for electronics assembly factories, small sterile packaging lines for food & beverage, multi-station small automation equipment, and precision pneumatic tool pipelines requiring strict ISO 8573-1 Class 1 ultra-clean compressed air.