Oil Separators Filters

Part No: E46KD

Core Technical Specifications

Filtration Grade: Submicron high-efficiency secondary coalescing separation

Absolute Separation Precision: 0.01 μm ultra-fine oil mist aerosols

Oil Mist Separation Efficiency: 99.999% capture rate for oil droplets ≥0.01μm

Residual Oil Content of Outlet Compressed Air: ≤0.1 ppm, far exceeding ISO 8573-1 Class 0 ultra-clean air standard

Filter Media: Multi-layer imported HV/Lydall gradient borosilicate glass fiber composite coalescing media, anti-hydrolysis, anti-static, high temperature resistant

Max Continuous Working Pressure: 1.6 MPa

Continuous Operating Temperature Range: -10°C ~ 100°C

Compatible Lubricant: Mineral / fully synthetic screw compressor coolant oil

Clean low-dust factory environment: 4,000 operating hours / 12 months

Heavy dust, high ambient temperature, 24/7 continuous production: Shorten service life to 2,500–3,200 hours

Mandatory replacement trigger: Differential pressure ΔP ≥ 0.07 MPa or oily residue detected in downstream air pipeline

Differential Pressure Thresholds

Initial pressure drop of brand-new separator: ≤0.018 MPa

Alarm replacement differential pressure: ΔP ≥ 0.07 MPa

Sealing & Canister Construction

Outer Canister: Thick cold-rolled steel anti-corrosion coated shell, resistant to cyclic air pressure fluctuation during compressor load/unload cycles

Sealing Gasket: High temperature resistant NBR nitrile rubber full-face ring, maintains leak-proof sealing under long-term thermal cycling without hardening or cracking

Internal Support Structure: Perforated galvanized steel inner & outer support mesh, anti-collapse media design under airflow pressure surges

Built-in Oil Return Port: Top threaded drain connection for gravity reflux of separated liquid oil back to compressor oil sump, prevents oil re-entrainment

Key Product Advantages

Secondary ultra-fine oil polishing stage to achieve Class 0 oil-free compressed air

Installed after tank primary air-oil separator, E46KD captures residual submicron oil mist that primary separators cannot intercept. It lowers outlet air residual oil below 0.1ppm, fully protecting precision downstream equipment such as adsorption dryers, activated carbon filters, laser cutting machines and painting production lines from oil contamination.

Multi-layer gradient glass fiber media with stable low pressure loss and long service cycle

Imported multi-gradient coalescing media provides large oil sludge contaminant holding capacity, slowing differential pressure rise throughout full service life. Layered fiber structure continuously aggregates micro oil droplets into liquid film for gravity reflux, maintaining consistent ultra-high separation efficiency without performance decay.

Independent spin-on design with dedicated oil return circuit eliminates secondary oil carryover

Coalesced liquid oil flows out via top built-in oil return port and returns to compressor lubrication system, avoiding separated oil being blown back into clean air stream by high-speed turbulent airflow. Steady low oil carryover performance is sustained for the entire service cycle.

Anti-static full metal structure eliminates static ignition risk

All internal metal support frameworks adopt conductive anti-static treatment, releasing static charge generated by high-speed air and oil mist friction inside the filter, eliminating hidden fire hazards in oil-air mixed working environment.

Universal spin-on one-person rapid maintenance design

Standard universal threaded spin-on structure. After complete compressor shutdown, system pressure venting and oil circuit isolation, maintenance staff can unscrew old filter and install new cartridge within 2 minutes with only a belt wrench, drastically shortening production downtime during servicing.

Inline Air-Oil Separation Working Principle

Low-oil compressed air discharged from compressor air receiver tank flows into the outer cavity of E46KD spin-on separator.

Ultra-fine 0.01μm residual oil mist aerosols penetrate multi-layer gradient glass fiber coalescing media; tiny oil particles collide, aggregate and coalesce into continuous liquid oil films on fiber surfaces.

Coalesced liquid oil flows upward along media layers, converges into the top built-in oil return port, and refluxes back to compressor oil sump for circulation reuse.

Ultra-clean oil-free compressed air (residual oil ≤0.1ppm) passes through the inner core support tube and flows out to downstream air treatment equipment and production terminals.

When media is fully saturated with carbon sludge and oil deposits, differential pressure rises sharply; excessive pressure difference may crack glass fiber media and cause massive oil carryover fault.

Application Scope

Automotive component electrostatic painting workshops, precision metal laser cutting & welding factories, electronic component assembly cleanrooms, cosmetic aseptic filling production lines, pharmaceutical sterile packaging pneumatic systems, food & beverage high-standard sterile processing lines, laboratory high-purity gas supply stations.