Coalescing Filters

Part No: 51140S

Core Technical Specifications

Absolute Filtration Accuracy: Solid Particles & Liquid Oil/Water Aerosols ≥0.01 μm

Multi-layer gradient borosilicate microglass composite media, outer red hydrophobic & oleophobic PU drainage foam, extra deep pleated design for enlarged dirt holding capacity and sustained low differential pressure, built-in anti-re-entrainment backflow barrier to prevent liquid oil re-carried by airflow.

Max Working Pressure: 1.6 MPa

Continuous Operating Temperature: 1.5℃ ~ 80℃

4,000 working hours / 12 months under clean factory intake air; shorten to 2,000–3,000 hours for dusty foundry, continuous spray booth environments. Mandatory replacement when differential pressure ΔP ≥ 0.07 MPa.

Differential Pressure Replacement Thresholds

Initial pressure drop of brand-new element: ≤0.013 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.07 MPa

Seal System: Integral full-circle NBR nitrile rubber flange gasket, zero air bypass, resistant to aging caused by high-temperature compressor oil and acidic condensate

Inner & Outer Support Cage: Double-layer thick perforated 304 stainless steel mesh, heavy-duty structural reinforcement to avoid media bulging or collapse under full rated high airflow

Key Product Advantages

Fourth-stage high-precision polishing protection drastically extends service life of downstream A carbon filter

Installed after R fine coalescing filter, this S-grade element captures invisible trace submicron oil mist and micro water droplets that medium/fine filters cannot separate. It drastically reduces liquid contamination load on terminal activated carbon elements, extends carbon service cycle and lowers overall factory spare parts expenditure.

Ultra-large dirt & liquid holding capacity ensures stable low differential pressure during long heavy-duty continuous production

Extra deep-pleated gradient microglass matrix stores massive volumes of oil, condensate and solid dust contaminants. Outer red drainage foam accelerates liquid gravity backflow, slowing pressure rise under full-load long-hour operation and reducing costly unplanned full-line downtime caused by frequent filter replacements.

High-temperature stabilized media eliminates fiber shedding and secondary pipeline contamination

Heat-cured borosilicate microglass composite paired with double heavy stainless steel support mesh stops glass fiber powder from shedding into large-diameter central air pipelines, protecting heavy spray booth manifolds, large-format laser cutting lenses and main process proportional solenoid valves from severe clogging failures.

Energy-saving low differential pressure design cuts power consumption of large screw/centrifugal compressors

Uniform wide-gradient pore layout maintains ultra-low airflow resistance under maximum rated flow throughout the entire service life. Stable low backpressure reduces continuous running load of large industrial air compressors, significantly cutting long-term factory electricity operating costs.

Working Principle

Pre-dried large-volume compressed air flows through the filter cartridge from outside to inside:

Residual tiny water droplets and fine solid impurities are intercepted by outer red hydrophobic foam and drain into the large filter bowl via gravity.

0.01μm ultra-fine oil-water micro-aerosols collide and coalesce into large separable liquid droplets while passing through multi-layer gradient borosilicate microglass media.

Outer anti-re-entrainment foam prevents separated liquid oil from being re-carried by high-speed large-volume compressed airflow.

Collected oil and condensate are automatically discharged via large electronic float drain valve.

Ultra-clean air with residual liquid oil ≤0.008 mg/m³ flows downstream to A activated carbon filter for final oil vapor purification.

Application Industries

Full automotive plant electrostatic spray production lines, heavy industrial large-format laser cutting workshops, pharmaceutical factory central aseptic filling air supply, large electronics cleanroom main gas source, food & beverage giant sterile packaging plants, multi-station heavy automation production lines requiring strict ISO 8573-1 Class 1 ultra-clean compressed air.