Coalescing Filters

Model: 405510

Core Technical Specifications

Filter Grade: Grade 4 Superfine Coalescing Filtration

Filtration Precision: 0.01 μm submicron oil mist & micro solid particles

Residual Oil Content at Outlet: ≤0.01 ppm under rated airflow

Filter Media: Multi-layer gradient borosilicate micro glass fiber composite with permanent hydrophobic & oleophobic coating

Overall Dimension: Length 24 in, OD 3.30 in, ID 1.94 in

Max Working Pressure: 16 bar / 232 PSIG

Max Continuous Operating Temperature: ≤80℃

Service Life Standard: 4000 working hours OR 12 months, whichever comes first

Airflow Direction: Outside-to-Inside

Key Product Features

Deep Polishing Ultra-Fine Oil Mist Removal

Installed after Grade 2 medium coalescing filter, this cartridge captures invisible trace submicron oil aerosols and tiny residual condensed water droplets that medium-grade filters cannot fully intercept. It delivers nearly oil-free compressed air and greatly slows saturation of downstream activated carbon filter elements to extend their service cycle.

Low Pressure Drop & Energy Saving

Deep-pleated microglass media maximizes effective filtration area. It maintains stable low airflow resistance under 24-hour full-load continuous operation, reduces extra power consumption of air compressors and cuts overall factory air supply operating costs.

Large Dirt & Oil Holding Capacity

Multi-gradient layered depth filtration structure stores massive separated lubricating oil, condensed water and micro solid contaminants, extending maintenance intervals and minimizing production downtime during filter replacement.

Robust Anti-Deformation Metal Support Tube

Solid perforated metal inner frame withstands strong high-speed airflow impact, preventing filter media collapse, deformation and fiber shedding to avoid secondary fiber contamination of clean compressed air.

Working Principle

Compressed air pre-treated by Grade 1 and Grade 2 pre-filters enters the cartridge from the outer red microglass layer. Multi-layer ultra-fine glass fiber captures 0.01 μm submicron oil mist particles; tiny oil droplets continuously collide and coalesce into large liquid condensate, which sinks to the filter housing bottom and drains automatically by gravity. Ultra-clean low-oil compressed air is delivered to activated carbon filters or high-precision terminal production equipment.

Application & Industries

Core ultra-precision polishing filter for large-flow industrial compressed air post-processing systems, installed between medium coalescing filters and activated carbon filters.

Widely applied in precision electronic assembly, pharmaceutical aseptic manufacturing, food sterile packaging, medical equipment processing, optical coating, laboratory analytical instruments, automotive topcoat spraying, heavy-duty laser cutting and factory centralized large-flow air supply systems requiring Class 1 oil-free ultra-clean compressed air.