Coalescing Filters

Model: 1629053709

Core Technical Specifications

Filtration Grade: DD+ Medium-High Efficiency Coalescing Grade

Filtration Precision: Captures solid particles ≥1μm, liquid oil mist and condensed water aerosol ≥0.01μm

Outlet Residual Oil Content: ≤0.05 ppm

Filtration Efficiency: 99.99% removal efficiency for 0.01μm liquid oil & water aerosols

Filter Media: Multi-layer gradient hydrophobic borosilicate glass fiber composite with outer hydrophobic foam buffer sleeve, anti-static and oleophobic treated

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: ≤0.015 MPa

Sealing Structure: Integrated reinforced plastic end caps with double fluorine rubber O-rings, zero air bypass leakage

Key Product Advantages

Balanced solid-liquid separation for large-flow industrial air treatment

After PD+ particulate pre-filtration, this DD+ element removes both pipeline dust and submicron oil/water aerosol that single-stage dust filters cannot intercept. Aggregated liquid droplets fully drain to filter bowl, providing stable medium-high cleanliness compressed air for large air consumption workshops.

Oversized pleated media for low airflow resistance & energy saving

Expanded deep-pleated filtration area optimizes internal airflow channels, maintains stable low pressure drop under 24/7 full-load continuous operation, effectively cutting long-term air compressor power consumption for large-flow systems.

Extra-large liquid & dust holding capacity extends maintenance intervals

Thick multi-gradient hydrophobic glass fiber matrix stores massive condensed oil, water and solid contaminants, resisting rapid saturation in high-humidity, heavy-dust industrial environments and lowering frequent replacement costs.

Oil & hydrolysis resistant reinforced construction prevents secondary contamination

Hydrolysis-proof, oil-repellent glass fiber matched with stainless steel support mesh avoids fiber shedding, eliminating secondary pollution to downstream pneumatic valves, instruments and production equipment.

Working Principle

Pre-cleaned compressed air from PD+ particulate filter flows outside-in through multi-layer hydrophobic borosilicate glass fiber media. Coarse solid particles above 1μm are trapped, while micro oil and water aerosols collide and agglomerate into large liquid droplets, then flow down along fiber surface to the filter bottom drain port by gravity. Dry, low-oil compressed air is delivered to subsequent activated carbon filter for terminal purification.

Application Industries

widely applied in:

Large automotive spraying workshops, multi-unit laser cutting production lines, large-scale precision machining plants, food & beverage processing factories, textile integrated mills, centralized factory high-flow compressed air stations, mining heavy equipment air supply systems.