Oil Separators Filters

Part No: KV70-032

Core Technical Specifications

Filtration Function: Separate fine compressor oil mist from compressed air discharged by screw rotor, return oil back to lubrication circuit

Separation Precision: Capture oil aerosols ≥0.01 μm

Residual Oil Carryover After Separation: ≤3 ppm oil content in outlet compressed air

Filter Media Structure: Multi-layer gradient glass fiber composite media, built-in anti-re-entrainment drainage foam layer, reinforced metal support mesh to prevent media collapse under internal tank pressure

Compatible Lubricant: Mineral oil, semi-synthetic & fully synthetic screw compressor oil

Standard Replacement Cycle

4,000 operating hours / 12 months under clean intake air conditions; shorten to 2,000–3,000 hours for dusty factory, high-humidity or heavy-load continuous operation. Replace when differential pressure ΔP ≥ 0.08 MPa.

Differential Pressure Replacement Thresholds

Initial pressure drop of new separator: ≤0.015 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.08 MPa

Sealing & Support Construction

Top & Bottom End Caps: Reinforced metal coated anti-rust polymer end caps with diversion ribs for uniform airflow distribution

Seal System: Integrated full-circle NBR nitrile rubber flange gasket, resistant to high-temperature compressor oil and acidic condensate aging

Inner & Outer Support Cage: Double-layer perforated galvanized steel mesh, structural reinforcement to avoid media deformation under tank internal pressure fluctuation

Key Product Advantages

Core oil separation component to protect downstream pipeline filters and reduce oil consumption

Installed inside the compressor air receiver tank, this separator captures massive fine oil mist generated by screw compression. It drastically cuts oil carryover into post-treatment compressed air pipeline, reduces oil replenishment frequency, and extends service life of downstream medium/ultrafine coalescing filters and activated carbon elements.

High oil holding capacity for stable long continuous operation

Thick deep-pleated gradient glass fiber matrix stores large volume of captured lubricant oil. Built-in drainage foam accelerates gravity oil reflux back to compressor oil sump, slowing pressure rise and reducing unplanned compressor downtime caused by frequent separator replacement.

High-temperature stabilized media, zero fiber shedding to avoid downstream pipeline contamination

Heat-cured borosilicate glass fiber composite paired with double steel support mesh prevents glass fiber powder shedding into compressed air pipelines, protecting industrial spray guns, laser optical lenses and precision miniature solenoid valves from clogging failure.

Low permanent differential pressure design to save compressor power consumption

Uniform graded pore layout minimizes internal airflow resistance throughout full service cycle. Stable low backpressure inside the tank lowers continuous load of screw airend, cutting long-term factory electricity operating costs.

Working Principle

High-temperature air-oil mixed flow passes through the separator cartridge from outside to inside:

Large residual oil droplets are intercepted by outer drainage foam and flow back to tank oil sump via gravity;

0.01μm ultra-fine oil micro-aerosols collide and coalesce into large separable liquid oil droplets while passing through multi-layer gradient glass fiber media;

Separated oil flows down the media surface back to compressor lubrication circuit, clean compressed air passes through inner support tube and exits the tank to downstream pipeline treatment equipment;

Built-in anti-re-entrainment foam prevents separated liquid oil from being re-carried by high-speed compressed airflow inside the tank.

Application Industries

General manufacturing workshop air supply, automotive component production lines, small paint booth compressor stations, plastic injection molding auxiliary air supply, laboratory central compressed air systems, food processing factory pneumatic equipment power source