Coalescing Filters

Model: 2901052900

Core Technical Specifications

Filter Grade: PD High-precision Coalescing Filtration

Filtration Precision: 0.01 μm submicron oil mist, micro water droplets & fine solid particles

Filter Media: Multi-layer gradient borosilicate micro glass fiber, silicone-free, permanent hydrophobic & oleophobic coating

Max Working Pressure: 16 bar / 232 PSIG

Continuous Operating Temperature Range: 1.5℃ ~ 66℃

Standard Service Life: 4,000–6,000 operating hours or 12 months (whichever comes first); replace immediately when differential pressure reaches 0.35 bar

Key Product Advantages

Low Initial Differential Pressure for Energy Saving

Deep-pleated glass fiber media maximizes effective filtration area and optimizes internal airflow channels to eliminate turbulence. Stable low pressure loss is maintained under 24/7 full-load continuous operation, cutting extra power consumption of air compressors and lowering long-term factory operation costs.

Large Dirt & Oil Holding Capacity

Thick gradient depth fiber matrix stores massive coalesced lubricant oil, condensed water and metal wear sludge, significantly extending maintenance intervals and minimizing production downtime caused by frequent element replacement.

Reinforced Anti-Delamination & Anti-Corrosion Structure

Dual stainless steel mesh cages withstand violent high-speed turbulent airflow inside filter housing, preventing media bulging, rupture and fiber shedding to avoid secondary contamination of downstream precision terminal equipment.

Working Principle

Compressed air pre-treated by DD9+ coarse filter enters the cartridge from the outer stainless steel protective mesh. Multi-layer ultra-fine glass fiber medium intercepts 0.01μm oil mist aerosols and solid particles. Tiny oil droplets continuously collide and aggregate into large liquid oil beads, flow down the inner wall of the cartridge by gravity and drain automatically via the housing float drain port. Ultra-clean low-residual-oil compressed air flows forward to optional QD9+ activated carbon filter for oil vapor removal.

Application & Industries

Core precision polishing filter for small-flow industrial compressed air post-processing systems, installed between general coalescing pre-filters and activated carbon filters.

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