Oil Separators Filters

Model: 6.4290.1

Product Type: Built-in Flange Air Oil Separator Cartridge for Rotary Screw Air Compressor

Core Technical Specifications

Filter Media: Imported multi-layer gradient HV / Lydall borosilicate micro glass fiber composite

Filtration Precision: 0.1 μm submicron oil mist aerosol

Separation Efficiency: ≥99.999%

Residual Oil Content of 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 Form: Circular multi-hole steel flange with integrated high-temperature nitrile rubber gasket

Key Product Features

Ultra-high-efficiency coalescing oil-gas separation

Gradient micro glass fiber 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 pipelines.

Low pressure drop energy-saving design

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

Extra-large oil & dirt holding capacity

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