Coalescing Filters

Model: 9.4870.0

Core Technical Specifications

Filtration Grade: KTF Ultra High-Efficiency Submicron Coalescing Grade

Filtration Precision: Captures ≥0.01μm ultra-fine liquid oil mist, condensed water aerosol & micro solid particles

Outlet Residual Oil Content: ≤0.01 ppm (actual test 0.008ppm, ISO 8573-1 Class 1 ultra-clean standard)

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

Dimension & Flow Parameter

Rated Air Flow: 18.5 m³/min

Outer Diameter: 95 mm

Total Length: 790 mm

Net Weight: 1.6 kg

Mounting Mode: Central metal mandrel bayonet twist lock quick install

Continuous Operating Temperature Range: 2℃ ~ 66℃

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

Differential Pressure Replacement Standard: Alarm when ΔP＞0.045 MPa; mandatory shutdown replacement when ΔP≥0.07 MPa

Sealing Structure: Reinforced black plastic flat end caps, built-in double nitrile rubber flat gaskets, zero air bypass leakage

Key Product Advantages

Deep capture invisible submicron oil mist for high-standard clean compressed air

Installed downstream of E-B particulate pre-filter, this blue high-efficiency element traps invisible ultra-fine oil aerosol that general coalescing media cannot fully remove. Outer blue hydrophobic foam blocks secondary liquid re-entrainment, condensed oil & water drain rapidly to filter bowl, providing ultra-low residual oil compressed air for automotive topcoat painting, semiconductor assembly and laboratory precision instruments.

Deep-pleated media balances ultra-high filtration efficiency & low pressure loss

Gradient folded microglass fiber expands effective filtration area, forms smooth internal airflow channels, maintains stable low pressure drop under 24h full-load continuous operation, effectively cuts long-term power consumption of large air compressor stations.

Super large liquid holding capacity extends maintenance cycles

Thick multi-gradient hydrophobic fiber matrix stores massive condensed oil & water, resists rapid saturation under high-humidity workshop environments, reduces frequent replacement labor and high spare parts cost.

Hydrolysis & oil resistant construction avoids secondary pipeline contamination

Oleophobic borosilicate glass fiber matched with stainless steel support mesh prevents fiber shedding, eliminates oil-dust secondary pollution to downstream precision pneumatic valves, spray guns and electronic components. Silicon-free version optional for high-gloss painting lines.

Working Principle

Dust-free pre-cleaned compressed air from particulate filter flows outside-in through multi-layer hydrophobic borosilicate glass fiber media:

Tiny oil & water aerosols collide and aggregate into large liquid droplets;

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

Condensed liquid flows down to filter drain port by gravity;

Ultra-dry, ultra-low-oil compressed air outputs to subsequent activated carbon filter for deodorization & oil vapor removal.

Application Industries

Automotive group central electrostatic painting workshops, multi-line large laser cutting equipment, pharmaceutical sterile cleanrooms, food large-batch aseptic filling packaging, electronic PCB & chip assembly, laboratory precision analytical instruments, large factory centralized air compressor stations, full-automatic pneumatic production lines, medical breathing air pretreatment.