Coalescing Filters

Model: 2258290024

Core Technical Specifications

Filtration Grade: M Medium General Coalescing Grade

Filtration Precision: Captures solid particles ≥1μm, liquid oil mist & condensed water aerosol ≥0.1μm

Outlet Residual Oil Content: ≤0.1 ppm

Filtration Efficiency: 99.99% removal efficiency for 0.1μm liquid oil & water aerosols

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

Dimension Reference

Outer Diameter: 77 mm

Total Length: 508 mm

Housing Connection Thread: 1-1/2"

Max Working Pressure: 1.6 MPa (16 bar / 232 PSIG)

Continuous Operating Temperature: 2℃ ~ 66℃

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

Replacement Trigger: Warning alert at differential pressure ＞0.045 MPa; mandatory shutdown replacement when differential pressure ≥0.07 MPa

Initial Differential Pressure: ≤0.015 MPa

Key Product Advantages

Balanced solid-liquid separation for universal industrial compressed air treatment

After P-grade particulate pre-filtration, this M element simultaneously removes pipeline rust, scale, dry dust, medium-fine oil mist and condensed water droplets that single dust filters cannot fully intercept. The outer yellow hydrophobic foam prevents secondary liquid re-entrainment, aggregated liquid drains rapidly to filter bowl, supplying stable medium-cleanliness compressed air for most general production lines.

Large deep-pleated media for low airflow resistance & energy saving

Gradient folded glass fiber enlarges effective filtration area, forms smooth internal airflow channels, maintains stable low pressure drop under 24/7 full-load continuous operation, effectively cutting long-term power consumption of air compressor units.

Large liquid & dust holding capacity extends maintenance intervals

Thick multi-gradient hydrophobic fiber matrix stores massive condensed oil, water and solid contaminants, resisting rapid saturation under medium-humidity and medium-dust workshop environments, reducing frequent replacement labor and material costs.

Oil & hydrolysis resistant reinforced construction avoids secondary pipeline contamination

Hydrolysis-proof, oil-repellent borosilicate glass fiber matched with stainless steel support mesh eliminates fiber shedding, preventing contamination to downstream pneumatic valves, spraying equipment and general electronic assembly devices.

Working Principle

Pre-cleaned compressed air from particulate filter flows outside-in through multi-layer hydrophobic borosilicate glass fiber media. Coarse solid particles above 1μm are trapped and stored in fiber layers; micro oil and water aerosols collide and agglomerate into large liquid droplets, the outer yellow foam sleeve blocks droplets from being re-carried into airflow, all condensed liquid flows down to the filter bowl drain port by gravity. Dry low-oil compressed air is delivered to subsequent high-efficiency coalescing or activated carbon filter for terminal purification.

Application Industries

widely applied in:

General machining workshops, textile mills, pac