Coalescing Filters

Core Technical Specifications

Filtration Grade: Medium coalescing pre-filter stage, intercepts solid particulate dust, bulk condensed water droplets and medium-sized compressor lubricant aerosols

Absolute Filtration Precision: 3 μm

Filter Media: Multi-layer deep-pleated gradient borosilicate glass fiber composite, oleophobic, hydrolysis resistant, low permanent pressure drop

Max Continuous Working Pressure: 1.6 MPa

Operating Temperature Range: 3°C ~ +66°C

Max Inlet Relative Humidity: ≤75% RH

Standard Replacement Cycle

Clean low-humidity general workshop: 4,000–8,000 operating hours or 12 months

Paint shop, high humidity, heavy dust & oil load, 24/7 full-load continuous operation: 3,000–5,000 hours

Initial Pressure Drop of Brand-New Element: ≤0.018 MPa

Alarm Replacement Differential Pressure: ≥0.07 MPa

Perforated stainless steel inner & outer support cages, anti-rust and anti-deformation under large-volume airflow fluctuations

Outer integrated drainage fleece automatically collects condensed water & oil and guides liquid downward to housing auto drain valve by gravity

Single full-circle oil-resistant EPDM top sealing ring, zero bypass air leakage

Static conductive fiber framework eliminates static accumulation fire hazard in oil-air mixed industrial environments

Key Product Advantages

Critical front-stage protection to extend service life of downstream high-cost precision filters

Deep-pleated gradient glass fiber media with high dirt holding capacity & gentle pressure rise curve

Large pleated filtration area stores massive oil sludge, water and solid dust contaminants; differential pressure rises slowly throughout full service cycle even under continuous heavy oil load, reducing extra power consumption of upstream air compressors.

Integrated hydrophobic drainage fleece prevents secondary liquid re-entrainment

Outer polyester fleece rapidly coalesces large liquid droplets and drains by gravity, avoiding re-atomization of liquid carried by high-speed airflow into downstream precision production pipelines.

Stainless steel anti-corrosion framework adapts to harsh humid industrial workshop conditions

Full stainless steel cages resist rust and acidic condensate erosion, stable performance in general machining, plastic molding, sandblasting and light-duty painting workshops.

Bayonet tool-free quick-install design for single-person fast maintenance

Isolate and vent housing internal pressure, twist open bayonet cap, pull out old cartridge and install new unit within 5 minutes without special tools, minimizing unplanned production downtime.

Working Principle

Raw compressed air enters outer polyester drainage fleece layer; large water and oil droplets are intercepted and flow downwards to drain port by gravity.

Remaining 3μm oil mist and fine dust penetrate multi-layer gradient glass fiber media; tiny liquid particles collide, aggregate and coalesce into continuous liquid film that flows back down to drain.

Processed compressed air with residual liquid oil ≤0.6 ppm flows downstream to HEF1200SU for 0.01 μm ultra-fine polishing filtration.

The element cannot be cleaned or regenerated on-site. Once saturated with oil sludge and dust, differential pressure surges and separation efficiency fails, requiring full cartridge replacement.

Application Scope

General mechanical machining, metal welding, medium injection molding pneumatic equipment, light manual painting lines, textile factory central air supply, packaging machinery, laboratory auxiliary instrument gas supply.