Coalescing Filters

Model: 76090R

Core Technical Specifications

Filter Grade: Grade R Coarse Primary Pre-filtration

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

Outlet Residual Oil Aerosol: ≤0.5 ppm under rated airflow

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

Max Working Pressure: 16 bar / 232 PSIG

Max Continuous Operating Temperature: ≤80℃

Recommended Service Life: 4000–6000 working hours or 12 months, whichever comes first

Airflow Direction: Outside-to-inside

Key Product Features

Frontline Full System Protection

Serves as the first defensive barrier of the compressed air purification system. It intercepts pipeline rust, scale, industrial dust, massive condensed condensate and bulky oil droplets. It significantly reduces pollutant load on downstream medium coalescing, ultra-precision and activated carbon filter elements, extends their service cycle and prevents premature saturation of dryer desiccant.

Low Pressure Drop Energy-saving Design

Optimized deep-pleated glass fiber media greatly expands effective filtration area. Stable low airflow resistance is maintained under long-term 24-hour full-load continuous operation, cutting extra power consumption of air compressors and lowering overall factory air supply operation costs.

Extra Large Dirt & Liquid Holding Capacity

Multi-gradient layered depth filtration structure stores massive separated water, lubricating oil and solid contaminants, prolongs maintenance intervals and minimizes production downtime for filter replacement.

Impact-resistant Plastic Reinforced Support Cage

Internal perforated plastic frame withstands high-speed airflow impact, prevents filter media collapse, deformation and fiber shedding, eliminating secondary fiber contamination of clean compressed air.

Working Principle

Raw unpurified compressed air flows into the cartridge from the outer glass fiber layer. The outer coarse fiber layer captures large solid particles, liquid water and bulky oil droplets; minor oil mist is pre-coalesced into heavy liquid droplets that sink to the housing bottom drain port and discharge automatically by gravity. Primarily purified compressed air flows into the secondary medium coalescing filter for further deep oil removal.

Application & Industries

Serves as the first-stage coarse protective filter in large-flow compressed air purification systems, installed upstream of medium coalescing filters and refrigerated air dryers.

Widely used in heavy machinery manufacturing, automotive production lines, packaging printing, textile industrial parks, general industrial spray painting, large pneumatic tool stations, food primary processing, medium & heavy-duty laser cutting and factory centralized high-flow compressed air supply systems.