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

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

Outlet Residual Oil Content: ≤3 ppm (3 mg/m³), compliant with ISO 8573-1 Class 3 industrial compressed air standard

Filter Media: Multi-layer deep-pleated gradient borosilicate glass fiber composite with oleophobic coating, hydrolysis resistant, continuous temperature resistance up to 108°C

Max Continuous Working Pressure: 1.0 MPa

Operating Temperature Range: -10°C ~ +108°C

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

Galvanized perforated outer cage, anti-rust and resistant to long-term erosion of high-temperature oil vapor and acidic condensate

Thickened central support tube, anti-collapse under medium-volume high-speed airflow surges

Integrated 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

Deep-pleated media with high dirt holding capacity & stable low pressure loss

Sufficient pleated area holds massive oil sludge, carbon deposits and liquid contaminants. Differential pressure rises slowly throughout the full service cycle even under continuous full-load operation, maintaining stable ultra-high separation efficiency without rapid performance decay.

Independent central oil return channel suppresses oil carryover

Coalesced liquid oil flows back to tank bottom via dedicated internal tube, prevents high-speed turbulent airflow from blowing separated oil back into air pipeline, keeps exhaust residual oil stably below 3 ppm and greatly reduces compressor oil consumption.

Anti-corrosion & anti-static metal frame suitable for general industrial environments

All metal supports adopt galvanized anti-rust coating, resistant to high-temperature vapor and condensate corrosion inside oil tanks. Anti-static filter media eliminates static discharge fire hazard in oil-air mixed atmosphere.

Fast maintenance flange design for single-person operation

Multi-hole flange perfectly matches LS series oil tank bolt layout. After compressor shutdown, pressure relief and partial oil draining, full disassembly & installation can be finished within 9 minutes without pipeline reconstruction.

Working Principle

High-temperature medium-flow oil-air mixed gas from screw host enters the outer cavity of separator element. Large oil droplets are intercepted and settle on outer drainage fleece via gravity for primary separation.

Remaining 0.1 μm submicron 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 media layers, converges into central built-in oil return tube and recirculates back to oil tank for reuse.

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

The element cannot be cleaned or regenerated. Once media is saturated with sludge and dust, 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 tool stations.