Coalescing Filters

Model: 6.4290.0

Core Technical Specifications

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

Filtration Precision: 0.1μm submicron oil mist aerosol

Separation Efficiency: ≥99.999%

Residual Oil Content in Outlet Air: ≤3 ppm

Max Working Pressure: 1.3 MPa / 13 bar

Max Working Temperature: ≤110℃

Initial Differential Pressure: ≤0.02 MPa

Service Life: 3500–6000 working hours or 12 months

Mounting Structure: Multi-hole circular steel flange with integrated nitrile rubber sealing gasket

Key Product Features

Ultra-high-efficiency oil-gas coalescing separation

Gradient micro glass fiber medium captures tiny submicron oil mist particles, condenses aerosol into large liquid oil droplets that flow back to the lubricating tank via built-in oil return tube, effectively cutting compressor oil consumption and eliminating oil carryover in compressed air.

Low pressure drop energy-saving design

Large pleated effective filtration area ensures smooth airflow, maintains stable low airflow resistance under long-term full-load continuous operation, and reduces air compressor power loss.

Super-large oil & dirt holding capacity

Multi-layer deep-depth filter structure stores massive separated lubricant, extends maintenance intervals and reduces replacement frequency.

Full stainless steel perforated inner support cage

Prevents filter layer collapse, deformation and damage under long-term high-temperature, high-flow industrial operating conditions.

Working Principle

Oil-gas mixture discharged from compressor airend flows into the separator tank. Large oil droplets are separated by gravity first; residual micro oil mist penetrates the glass fiber coalescing layer and is fully trapped, then condensed into liquid oil to flow back to the lubrication system. Clean low-oil compressed air flows out for post-processing purification.

Application & Industries

Widely applied in machinery manufacturing, metal processing, packaging, textile, automotive spray coating, food & beverage, pneumatic tools and factory centralized air supply systems.