Coalescing Filters

Part No: 1624183201

Core Technical Specifications

Filtration Precision: Captures solid particles ≥1μm, liquid oil & water aerosols ≥1μm

Outlet Residual Oil Content: ≤0.1 ppm, complies with ISO 8573-1 Class 2 clean air standard

Filtration Efficiency: 99.99% removal efficiency for 1μm liquid aerosols

Filter Media: Multi-layer gradient hydrophobic borosilicate glass fiber composite, outer blue oleophobic anti-re-entrainment foam sleeve with anti-static coating

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 2°C ~ 66°C

Standard Replacement Cycle: Replace after 4,000 operating hours or 12 months, whichever comes first

Initial Differential Pressure: ≤0.014 MPa

Sealing System: Reinforced black engineering plastic end caps with integrated single-piece nitrile rubber full sealing gasket, zero air bypass leakage

Key Product Advantages

Intermediate Polishing Stage to Protect Downstream High-Cost Precision Filters

Installed downstream of PD particulate prefilter, this blue DD element intercepts fine 1μm oil/water aerosols and bulk liquid water that pass the prefilter stage. It drastically reduces liquid contamination load on QD ultra-high efficiency and activated carbon filter cartridges, extends their service life and cuts overall system maintenance and spare parts costs.

Large Liquid Holding Capacity for High-Humidity Workshop Environments

Thick multi-gradient hydrophobic fiber matrix provides abundant oil & water storage volume, resisting rapid saturation in workshops with insufficient aftercooler or dryer performance.

Low Flow Resistance for Energy Saving

Deep-pleated glass fiber maximizes effective filtration area, maintaining stable low pressure drop under 24/7 full-load continuous operation, lowering extra power consumption of medium air compressor units.

Hydrolysis & Abrasion Resistant Fiber-Free Construction

Oleophobic borosilicate glass fiber paired with stainless steel support mesh eliminates fiber shedding under long-term humid compressed air operation, avoiding secondary pipeline contamination to downstream pneumatic valves and general processing equipment.

Working Principle

Pre-cleaned compressed air from PD particulate prefilter flows outside-in through the filter cartridge:

Bulk liquid water and large solid particles are blocked by outer blue hydrophobic foam;

Micro oil & water aerosols collide and coalesce into large liquid droplets across multi-layer gradient glass fiber media;

Outer blue anti-re-entrainment foam sleeve stops coalesced liquid droplets from being re-carried by high-speed airflow;

Condensed oil and water drain down to the filter bowl by gravity;

Medium-clean dry compressed air is delivered downstream to QD ultra-high efficiency coalescing filter for ultra-fine precision polishing treatment.