Coalescing Filters

Part No: 2901200318

Core Technical Specifications

Residual Oil Content at Outlet: ≤0.01 ppm, complies with ISO 8573-1 Class 1 ultra-clean air standard

Filtration Efficiency: 99.999% removal efficiency for 0.01μm liquid aerosols

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

Dimension & Flow Parameters

Rated Air Flow: 36 m³/min

Outer Diameter: 90 mm

Total Length: 620 mm

Mounting: Top external double FKM fluorine rubber thread sealing structure

Continuous Operating Temperature: 1.5℃ ~ 66℃

Standard Service Life: Replace after 4,000 operating hours or 12 months, whichever comes first

Initial Differential Pressure: ≤0.016 MPa

Sealing Structure: Reinforced black plastic threaded end caps with integrated double FKM fluorine rubber gaskets, zero air bypass leakage

Key Product Advantages

Deep Capture of Invisible Submicron Oil Mist for Precision Manufacturing

Installed downstream of PD360 particulate prefilter, this DDp ultra-high efficiency element traps invisible 0.01μm submicron oil aerosols that standard DD general coalescing media cannot fully eliminate. The outer blue hydrophobic foam prevents secondary liquid re-entrainment; coalesced oil and water drain rapidly to the filter bowl, delivering ultra-low residual oil compressed air for strict precision production processes.

Deep-Pleated Low-DP Media for Energy Saving

Optimized deep-fold gradient glass fiber maximizes effective filtration area, maintaining stable low pressure drop under 24/7 full-load continuous operation, effectively cutting long-term power consumption of large central air compressor units.

Extra-Large Liquid Holding Capacity Extends Maintenance Cycles

Thick multi-gradient hydrophobic fiber matrix provides massive oil & water storage volume, resisting rapid saturation under high-humidity, high-oil workshop environments and reducing frequent replacement labor and spare parts procurement costs for large air compressor stations.

Hydrolysis & Oil Resistant Fiber-Free Construction

Oleophobic borosilicate glass fiber paired with stainless steel support mesh prevents fiber shedding under long-term humid compressed air operation, eliminating secondary pipeline contamination to downstream precision pneumatic valves, spray guns and electronic assembly equipment. Silicon-free variants are available for automotive topcoat painting lines.

Working Principle

Dust-free pre-filtered compressed air flows outside-in through the filter cartridge:

Solid particles larger than 1μm are trapped and stored inside the gradient glass fiber matrix;

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

Ultra-dry, ultra-low-oil compressed air is delivered to the subsequent QD activated carbon filter for deodorization and oil vapor removal.

Application Industries

Automotive high-gloss electrostatic painting workshops, multi-line large laser cutting equipment, pharmaceutical sterile cleanrooms, food large-batch aseptic filling & packaging, PCB & semiconductor chip assembly, laboratory precision analytical instruments, group factory centralized air compressor stations, solvent spraying production lines, full-automatic high-precision pneumatic automation production lines.