Oil Separators Filters

Core Technical Specifications

Filtration Grade: Primary 0.1 μm high-efficiency coalescing separation for medium industrial screw compressors

Absolute Separation Precision: 0.1 μm submicron oil mist aerosol capture

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

Operating Limits

Max Continuous Working Pressure: 1.0 MPa

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

Standard Replacement Cycle

Clean low-dust factory workshop: 4,000–6,000 operating hours or 12 months

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

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

Alarm replacement differential pressure: ≥0.08 MPa

Structural Construction Features

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

Thickened central support tube, anti-collapse under continuous high-speed airflow impact

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

Independent central oil return channel, returns coalesced lubricant back to oil sump to prevent secondary oil re-entrainment

Key Product Advantages

Deep-pleated filter media with high dirt holding capacity and slowly rising differential pressure

Sufficient pleated area accommodates 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.

Built-in independent oil return structure to stabilize residual oil content

Coalesced lubricant flows back to oil tank via central pipeline, preventing separated oil from being re-atomized by turbulent airflow. It keeps stable low residual oil at outlet and effectively reduces compressor oil consumption.

Anti-corrosion & anti-static heavy-duty structure suitable for complex industrial conditions

All metal supports are galvanized for rust protection. Anti-static filter media eliminates static discharge fire risk in oil-air mixed atmosphere.

Working Principle

High-temperature oil-air mixed gas discharged 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.

Liquid 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 component electrostatic painting workshops, metal cutting & welding factories, medium plastic injection molding lines, food & beverage packaging pneumatic systems, textile branch workshop air supply, general machinery processing pneumatic stations.