Coalescing Filters

Part No: 2901207206

Core Technical Specifications

Multi-layer gradient borosilicate microglass composite, outer red hydrophobic oleophobic PU drainage foam, optimized deep pleated media for larger dirt holding capacity and lower initial pressure drop, built-in anti-re-entrainment backflow structure.

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 1.5℃ ~ 80℃

Standard Replacement Cycle

4,000 working hours / 12 months under clean intake air; shorten to 2,000–3,000 hours in dusty, high-humidity spray workshops. Replace when differential pressure ΔP ≥ 0.07 MPa.

Differential Pressure Replacement Thresholds

New element initial pressure drop: ≤0.013 MPa

Mandatory replacement alarm point: ΔP ≥ 0.07 MPa

Sealing & Support Construction

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

Seal: Dual built-in NBR nitrile rubber full-circle gaskets, zero air bypass, resistant to high-temperature compressor oil and acidic condensate aging

Inner & Outer Support: Double-layer thick perforated 304 stainless steel mesh, heavy-duty reinforcement to prevent media bulge under full rated airflow

Key Product Advantages

Third-stage upgraded ultra-fine polishing protection for downstream QD carbon filter

Installed after DD medium coalescer, this PD+ upgraded element captures invisible 0.01μm submicron oil mist and micro water droplets that medium filters cannot separate. Optimized low-resistance media greatly reduces oil contamination load on terminal activated carbon elements, extends carbon service life and cuts factory spare parts expenditure.

High dirt & liquid holding capacity with stable low permanent pressure loss

Extra deep-pleated gradient microglass matrix stores large volumes of oil and condensate. Outer red drainage foam accelerates liquid gravity backflow, slowing pressure rise in medium-scale factory air systems and reducing unplanned full-line downtime from frequent filter replacement.

High-temperature stabilized media, zero fiber shedding to avoid pipeline secondary pollution

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

Energy-saving low differential pressure design reduces main compressor power consumption

Uniform wide-gradient pore layout maintains ultra-low airflow resistance under rated full flow throughout the whole 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 cartridge outside-in:

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

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

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

Collected oil and condensate are automatically drained 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 Class 1 ultra-clean compressed air.