Coalescing Filters

Part No: 1629053915

Core Technical Specifications

Filtration Grade: DDp Medium Precision Coalescing

Filtration Precision: Solid particles ≥1 μm, liquid oil & water aerosols ≥1 μm

Residual Liquid Oil Content Downstream: ≤0.1 mg/m³, compliant with ISO 8573-1 Class 3 clean compressed air standard

Filtration Efficiency: 99.99% removal efficiency for 1 μm liquid oil/water aerosols

Filter Media: Multi-layer gradient hydrophobic borosilicate glass fiber composite, outer grey oleophobic anti-static anti-re-entrainment foam sleeve

Operating Limits

Continuous Operating Temperature: 2°C ~ 80°C

Standard Replacement Cycle: Replace after 4,000 operating hours or 12 months, whichever comes first

Differential Pressure Thresholds

Initial clean differential pressure: ≤0.013 MPa

Mandatory replacement alarm: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Reinforced corrosion-resistant black PA polyamide, multi-position locking structure

Seal: Independent NBR nitrile rubber O-ring gasket, zero air bypass leakage

Key Product Advantages

It greatly reduces liquid contamination load on QDp ultrafine coalescer and QD+ activated carbon cartridges, extends their service life and cuts overall system maintenance & spare parts cost.

Large liquid holding capacity for high-humidity heavy industrial environments

Thick deep-pleated gradient glass fiber matrix stores massive volumes of condensed oil and condensate, resisting rapid saturation in large factories with underperforming aftercoolers or refrigerated dryers.

Low airflow resistance to reduce central compressor station energy consumption

Optimized deep-fold glass fiber maximizes effective filtration area, maintaining stable low pressure drop under 24/7 full-load continuous large-volume operation, lowering extra power consumption of large screw air compressor units.

Hydrolysis & abrasion resistant media with no fiber shedding

Oleophobic borosilicate glass fiber combined with stainless steel support cage prevents fiber detachment under long-term humid high-flow compressed air impact, eliminating secondary pipeline contamination to downstream large pneumatic valves and precision processing equipment.

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

Exclusive Atlas Copco multi-hole central mandrel perfectly matches DD295+ main line filter housings; a single operator can complete cartridge replacement within 3 minutes without removing the entire filter tank.

Working Principle

Bulk condensed water and large solid particles are blocked by outer grey hydrophobic foam layer;

Medium-sized oil & water aerosols collide and coalesce into large liquid droplets through multi-layer gradient borosilicate glass fiber media;

Outer anti-re-entrainment foam prevents coalesced liquid droplets from being blown back into high-speed large-volume airflow;

Application Industries

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