Oil Separators Filters

Core Technical Specifications

Filtration Grade: Primary 0.1 μm high-efficiency coalescing separation for large heavy-load industrial screw compressors

Absolute Separation Precision: 0.1 μm submicron oil mist aerosol capture

Oil Mist Capture Efficiency: ≥99.999% for all oil particles ≥0.1 μm

Outlet Residual Oil Content: ≤3 ppm, compliant with ISO 8573-1 Class 3 industrial compressed air standard

Filter Media: European multi-layer deep-pleated gradient borosilicate glass fiber composite media with oleophobic coating, hydrolysis resistant, continuous temperature resistance up to 110°C

Max Continuous Working Pressure: 1.0 MPa

Operating Temperature Range: -10°C ~ +110°C

Heavy dust, paint workshop & 24/7 full-load continuous production: 2,600–4,000 hours

Mandatory Replacement Trigger: Differential pressure ΔP ≥ 0.08 MPa or obvious oil carryover in downstream pipelines

Differential Pressure Thresholds

Initial pressure drop of brand-new element: ≤0.02 MPa

Alarm replacement differential pressure: ≥0.08 MPa

Structural Construction Features

Thick galvanized perforated outer protective cage, resistant to corrosion from high-temperature oil vapor and acidic condensate

Extra thickened central support tube, anti-collapse under large-volume high-speed airflow surges

Integrated wide flat flange together with matched heat-resistant gasket to avoid bypass leakage

Built-in central oil return pipeline, automatically recovers coalesced lubricant back to oil sump to prevent secondary oil re-entrainment

Key Product Advantages

Oversized deep-pleated media with ultra-high dirt holding capacity & stable low pressure loss

Extended pleated area accommodates massive oil sludge, carbon deposits and liquid contaminants. Differential pressure rises gently under long-term full-load operation, maintaining stable high separation efficiency without rapid performance degradation.

Independent central oil return channel suppresses oil carryover

Coalesced liquid oil flows back to tank bottom via dedicated internal tube, preventing high-speed turbulent airflow from re-atomizing separated oil. It keeps exhaust residual oil stably below 3 ppm and effectively reduces compressor oil consumption.

Heavy-duty anti-corrosion & anti-static metal frame suitable for harsh industrial environments

All metal supports are galvanized for rust protection, resisting high-temperature vapor and condensate corrosion inside large oil tanks. Anti-static filter media eliminates static discharge fire hazard in oil-air mixed atmosphere.

Working Principle

High-temperature large-flow oil-air mixed gas from screw host enters the outer cavity of separator element. Large oil droplets hit outer cage and settle down by gravity for primary separation.

Remaining 0.1 μm ultra-fine oil mist penetrates multi-layer gradient glass fiber media. Tiny oil particles collide, aggregate and coalesce into continuous liquid oil film.

Coalesced lubricant flows downward along filter media, converges into central built-in oil return tube and flows back to oil tank for recycling.

Clean compressed air with residual oil ≤3 ppm flows out from inner core to dryers, precision filters and production pneumatic terminals.

The element cannot be cleaned or regenerated. Once media is saturated with sludge and impurities, differential pressure surges and separation efficiency fails; full replacement is required.

Application Scope

Automotive body electrostatic painting workshops, heavy metal fiber laser cutting plants, large plastic injection molding lines, bulk food & beverage sterile packaging pneumatic systems, textile mill central compressed air supply, medium-large pharmaceutical aseptic production gas pretreatment, heavy mining machinery pneumatic tool stations