Coalescing Filters

Part No: 1629054015

Core Technical Specifications

Filtration Grade: PDp Fine Dry Dust Primary Prefilter

Absolute Filtration Precision: Solid dry contaminants ≥3 μm

Particle Removal Efficiency: 99.999% capture efficiency for 3 μm solid particles

Filter Media: Multi-layer deep-pleated hydrophobic borosilicate glass fiber composite + thick black outer anti-static non-woven foam for coarse particle pre-blocking

Operating Limits

Max Working Pressure: 1.6 MPa (16 bar / 232 PSI)

Continuous Operating Temperature: 2°C ~ 80°C

Standard Replacement Cycle: Replace after 4,000 operating hours or 12 months, whichever comes first; extendable to 8,000 hours in low-dust clean workshop environments

Sealing & Support Construction

End Caps: Reinforced corrosion-resistant black PA polyamide multi-hole locking end cap

Seal: Integrated full-circle NBR nitrile rubber gasket, zero air bypass leakage

Inner & Outer Cage: Double-layer perforated 304 stainless steel mesh, anti-collapse under ultra-large continuous airflow load

Key Product Advantages

First-stage full-system protective barrier to extend service life of downstream high-cost precision filter cartridges

As the front pretreatment element of the entire large-flow central compressed air purification system, this PDp fine filter intercepts nearly all coarse solid impurities, pipeline rust and scale. It drastically reduces solid particle contamination load on DDp medium coalescer, QDp ultrafine coalescer and QD+ activated carbon cartridges, cutting replacement frequency and overall factory maintenance expenditure.

Ultra-large dust holding capacity for heavy-dust heavy industrial workshops

Deep-pleated gradient glass fiber matrix provides massive dust storage volume, resisting rapid clogging in metal machining, forging, sandblasting and other heavily dusty environments, minimizing production downtime caused by frequent filter replacement.

Ultra-low airflow resistance to reduce central compressor station power consumption

Large-area deep-fold filter media optimizes internal air channels, maintaining stable low pressure drop under 24/7 full-load continuous ultra-large-volume operation, effectively cutting extra power draw of large screw air compressor units and long-term electricity costs.

Hydrolysis & abrasion resistant media without fiber shedding

Hydrolysis-proof borosilicate glass fiber matched with full stainless steel support cage prevents fiber shedding under long-term humid high-flow compressed air impact, avoiding secondary pipeline contamination to downstream coalescing media, large precision pneumatic valves and spraying equipment.

Exclusive multi-hole bayonet quick-swap design without full housing disassembly

Working Principle

Raw unpurified compressed air flows outside-in through the filter cartridge:

Air first passes through outer thick black non-woven foam to trap large coarse solid particles;

All solid particles larger than 3μm are captured and stored inside gradient glass fiber media;

Application Industries

Large metal machining workshops, heavy metal forging plants, sandblasting workshops, textile printing factories, large packaging printing equipment, super-large factory centralized air compressor stations, construction machinery air supply systems, full-automatic ultra-large pneumatic automation production lines, food & beverage mass production equipment.