Coalescing Filters

Part No: 5351-04

Core Technical Specifications

Filter Media Structure: Multi-layer gradient borosilicate microfiber composite, outer white PU hydrophobic/oleophobic drainage foam to prevent liquid re-entrainment

Overall Element Size: Length 115 mm, Outer Diameter 48 mm, Inner Diameter 22 mm

Mounting: Central plug-in bayonet locking structure, direct insert installation

Continuous Operating Temperature: -34°C ~ +65°C

Differential Pressure Replacement Thresholds

Initial pressure drop of new element: ≤0.014 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Reinforced black PU plastic integrated locking caps with diversion ribs

Seal Kit Included: NBR nitrile O-rings, anti-aging against compressor oil and acidic condensate

Inner & Outer Support Cage: Single-layer perforated stainless steel mesh, anti-collapse under rated airflow

Key Product Advantages

Complete maintenance one-stop kit, no separate purchase of seals

This official service kit contains both filter element and matching O-rings, avoiding air bypass leakage caused by aged, lost seals during replacement, fully restoring filter sealing performance.

Third-stage ultra-fine polishing barrier to protect downstream carbon filter and precision equipment

Installed after coarse pre-filter, this coalescing element captures invisible trace submicron oil mist and micro water droplets that medium filters cannot separate. It drastically reduces oil contamination load on terminal activated carbon elements, extends carbon service life and cuts spare parts costs.

Compact high dirt & liquid holding capacity

Deep-pleated microfiber matrix stores large volumes of oil and condensate within small dimensions. Outer white drainage foam accelerates liquid separation and gravity discharge, slowing pressure rise in compact pneumatic loops and reducing unplanned downtime from frequent filter swaps.

Heat-stabilized media, zero fiber shedding to avoid secondary pipeline contamination

Heat-cured borosilicate microfiber composite paired with stainless steel support mesh prevents glass fiber powder shedding into small-bore air pipelines, protecting micro spray nozzles, tiny laser optical lenses and miniature solenoid valves from clogging failure.

Low permanent differential pressure design to save compressor power

Uniform gradient pore layout minimizes airflow resistance throughout the whole service cycle; stable low backpressure lowers continuous power consumption of small & medium screw compressors, cutting long-term factory electricity expenses.

Working Principle

Pre-filtered compressed air flows through the filter cartridge from outside to inside:

Residual small water droplets and fine solid impurities are trapped by outer white hydrophobic foam and drain into the 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 microfiber media.

The outer anti-re-entrainment foam prevents separated liquid droplets from being re-carried by high-speed compressed airflow.

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

Ultra-dry air with residual liquid oil ≤0.01mg/m³ flows downstream to activated carbon filter for final oil vapor removal.

Application Industries

Rail transit vehicle pneumatic systems, small automotive spray booths, compact laser marking & cutting equipment, laboratory analytical instruments, cosmetic micro-filling lines, medical & dental gas supply, miniature automation test benches, precision electronic assembly workstations, food aseptic packaging equipment.