Coalescing Filters

Model: 38446357

Core Technical Specifications

Filter Grade: Grade G Primary Coalescing Pre-Filtration

Filtration Precision: 1 μm solid particles, bulk condensed water & large liquid oil droplets

Capture Efficiency: 99.9% interception efficiency for 1 μm contaminants

Residual Oil Mist at Outlet: ≤0.1 ppm under rated airflow

Filter Media: Multi-layer gradient imported borosilicate micro glass fiber composite with permanent hydrophobic & oleophobic coating

Rated Airflow Capacity: 115.5 m³/min

Max Working Pressure: 17.2 bar / 250 PSIG

Max Continuous Operating Temperature: ≤80℃

Key Product Features

Frontline Barrier for Entire Air Treatment System

Serves as the first purification stage of F1155 pipeline filter system. It intercepts pipeline rust, scale, workshop dust, massive condensate and large oil droplets, greatly reducing contaminant load on downstream F1155IH / F1155IHE superfine coalescing elements and F1155IA activated carbon elements. It extends the service life of high-precision filters and prevents desiccant over-saturation of refrigerated dryers.

Low Differential Pressure & Energy Saving

Deep-pleated glass fiber media maximizes effective filtration area. Smooth internal flow channels reduce air turbulence, maintaining stable low pressure loss under 24/7 full-load continuous operation.

Working Principle

Raw unprocessed compressed air flows into the cartridge through the outer stainless steel protective mesh. The outer coarse fiber layer traps large solid particles, liquid water and bulky oil droplets. Coarse oil mist coalesces into heavy liquid condensate, which sinks to the filter housing bottom and drains automatically via the drain port. Pre-cleaned compressed air flows forward to the H-grade superfine coalescing filter for further trace oil mist treatment.

Application & Industries

Primary protective pre-filter for medium & large flow industrial compressed air post-processing systems, installed upstream of superfine coalescing filters and refrigerated air dryers.

Widely used in heavy machinery manufacturing, automotive production lines, packaging & printing industrial parks, textile factories, industrial spray coating, large pneumatic tool stations, food primary processing, medium & heavy laser cutting, and factory centralized compressed air supply stations.