Coalescing Filters

Model: 1629010403

Core Technical Specifications

Filtration Precision: Captures all solid contaminants ≥1μm, including pipeline rust, oxide scale, metal shavings, workshop dry dust and solid particles

Filtration Efficiency: 99.999% removal efficiency for 1μm solid particles

Outer Diameter: 110 mm

Total Overall Length: 680 mm

Connection Mode: Flange flat double fluorine rubber gasket sealing

Continuous Operating Temperature: 1.5℃ ~ 66℃

Standard Service Life: Replace after 4,000 operating hours or 12 months, whichever comes first

Replacement Trigger: Warning alert at differential pressure ＞0.045 MPa; mandatory shutdown replacement when differential pressure ≥0.07 MPa

Initial Differential Pressure: ≤0.012 MPa

Key Product Advantages

Front primary barrier to extend service life of downstream high-cost filter cartridges

As the first stage of the whole large-flow compressed air filtration system, this PD500 pre-filter intercepts most coarse rust, scale and solid impurities in advance. It drastically reduces the contamination load of DD500 coalescing filter and QD500 activated carbon filter, cutting overall maintenance frequency and high spare parts procurement cost for central air compressor stations.

Super large dust holding capacity suitable for heavy-dust industrial environments

Thick multi-gradient glass fiber matrix provides huge dust storage volume, avoids rapid clogging in machining, forging, mining and other dusty workshop conditions, effectively extending replacement maintenance cycles and reducing shutdown frequency.

Low airflow resistance reduces air compressor energy consumption

Large-area deep-pleated filter media optimizes internal airflow channels, maintains stable low pressure drop under 24/7 full-load continuous operation, lowers extra operating load of large air compressor units and saves long-term electricity costs.

Oil & hydrolysis resistant composite structure prevents secondary pipeline contamination

Working Principle

Raw unpurified compressed air first passes through the outer non-woven fabric buffer layer, then flows into multi-gradient borosilicate glass fiber dust-retention media. All solid particles larger than 1μm are trapped and stored inside the fiber matrix. Dust-free pre-cleaned air flows to the subsequent DD500 coalescing filter for liquid oil and water removal treatment.

Application Industries

widely applied in:

Large machining workshops, heavy forging plants, mining facilities, textile integrated factories, large packaging printing workshops, automotive group central spray booth stations, large-scale factory centralized compressed air stations, construction machinery air supply systems, full-automatic pneumatic production lines.