Coalescing Filters

Model: 02250153-296

Type: Grade 2 Primary Particulate Pre-Filter Cartridge

Core Technical Specifications

Filter Grade: Coarse particulate pre-filtration (Grade 2)

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

Residual Oil Content at Outlet: ≤0.5 ppm under rated airflow

Filter Media: Multi-layer gradient borosilicate micro glass fiber composite

Max Working Pressur16 bar / 232 PSIGe: 16 bar / 232 PSIG

Max Continuous Operating Temperature: ≤80℃

Service Life: 4000–6000 working hours or 12 months 

Airflow Direction: Outside-to-inside

Installation Method: Integrated plastic top connector, direct plug-in assembly with built-in O-ring seal

Key Product Features

Front-line system protective filtration

Traps pipeline rust, scale, dust, condensed water and large oil mist droplets at the first stage. Effectively reduces pollutant load on downstream medium coalescing, high-efficiency and activated carbon filter elements, greatly extending their service cycle and preventing dryer adsorbent contamination.

Low differential pressure energy-saving design

Uniformly folded gradient filter media provides large effective filtration area, maintains stable low airflow resistance under long-term full-load continuous operation, and cuts air compressor power consumption.

Hydrophobic & oleophobic surface coating

Accelerates separation and gravity drainage of liquid oil and water, avoids premature filter clogging, and significantly improves dirt & liquid holding capacity to reduce maintenance frequency.

Reinforced perforated stainless steel inner support cage

Prevents filter media collapse, deformation and fiber shedding under long-term high-flow, humid industrial working conditions, eliminating secondary contamination of clean compressed air.

Working Principle

Unpurified compressed air flows from outside to inside through multi-layer composite glass fiber media. Outer coarse fiber layer intercepts large dust particles, liquid water and big oil droplets; residual tiny oil mist is pre-coalesced into larger liquid droplets, which flow down to the automatic drain port of filter housing and discharge out. Primarily purified compressed air flows into the next-stage coalescing filter for further deep purification.

Application & Industries

Serves as the first-stage coarse pre-filter in compressed air staged purification systems, installed upstream of medium coalescing filter and refrigerated air dryer.

Widely applied in general machinery processing, packaging, textile, ordinary spray painting, pneumatic tool stations, food processing workshops, small laser cutting equipment and factory centralized air supply systems.