Coalescing Filters

Part No: 2901300107

Core Technical Specifications

Multi-layer gradient borosilicate microglass composite media, outer red hydrophobic & oleophobic PU drainage foam, extra deep pleated design for enlarged dirt holding capacity and sustained low differential pressure, built-in anti-re-entrainment backflow barrier.

Continuous Operating Temperature: 1.5℃ ~ 80℃

Initial pressure drop of new element: ≤0.013 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Reinforced black PA polymer threaded locking head with large-area flow diversion ribs

Seal System: Dual integrated full-circle NBR nitrile rubber gaskets included in full kit, zero air bypass, resistant to aging caused by high-temperature compressor oil and acidic condensate

Inner & Outer Support Cage: Double-layer thick perforated 304 stainless steel mesh, heavy-duty structural reinforcement to prevent media bulging or collapse under full rated high airflow

Key Product Advantages

Complete all-in-one maintenance kit eliminates air leakage and pressure loss

This genuine OEM full service kit integrates filter element and matched dual sealing gaskets. It avoids air bypass and system pressure drop caused by aged, lost or mismatched seals during maintenance, fully restoring complete sealing performance of the filter housing.

Third-stage high-precision polishing protection extends service life of downstream QD carbon filter

Installed after DD medium coalescing filter, this upgraded PD+ element captures invisible trace submicron oil mist and micro water droplets that medium filters cannot separate. It drastically reduces liquid contamination load on terminal activated carbon elements, extends carbon service life and cuts overall factory spare parts expenditure.

Extra-large dirt & liquid holding capacity ensures stable low differential pressure for long continuous operation

Deep-pleated gradient microglass matrix stores massive volumes of oil, condensate and solid contaminants. Outer red drainage foam accelerates liquid gravity backflow, slowing pressure rise in medium-duty workshop air systems and reducing unplanned production downtime from frequent filter replacements.

High-temperature stabilized media prevents fiber shedding and secondary pipeline contamination

Heat-cured borosilicate microglass composite paired with double stainless steel support mesh stops glass fiber powder from shedding into medium-diameter central air pipelines, protecting medium-format spray booth equipment, standard laser cutting lenses and process proportional solenoid valves from severe clogging failures.

Energy-saving low differential pressure design reduces power consumption of medium screw compressors

Uniform wide-gradient pore layout maintains ultra-low airflow resistance under full rated flow throughout the entire service cycle. Stable low backpressure lowers continuous running load of medium screw compressors, significantly cutting long-term factory electricity operating costs.

Working Principle

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

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

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

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

Collected oil and condensate are automatically discharged via electronic float drain valve.

Ultra-clean air with residual liquid oil ≤0.008 mg/m³ flows downstream to activated carbon filter for final oil vapor purification.

Application Industries

Medium automotive electrostatic spray booths, standard laser marking & cutting production lines, pharmaceutical medium-scale aseptic filling workshops, electronics factory central cleanroom air supply, food & beverage medium sterile packaging plants, multi-station medium automation production lines requiring strict ISO 8573-1 Class 1 ultra-clean compressed air.