Oil Separators Filters

Core Technical Specifications

Filtration Grade: High-efficiency coalescing separation for refrigeration oil mist

Absolute Separation Precision: 0.1 μm refrigerant oil aerosol capture

Oil Mist Capture Efficiency: ≥99.998% for oil particles ≥0.1 μm

Outlet Residual Oil Content: ≤2 ppm, meets refrigeration unit long-cycle operation standard

Max Continuous Working Pressure: 1.6 MPa

Continuous Operating Temperature Range: -20°C ~ +115°C

Stable clean cooling station: 8,000–12,000 operating hours or 18 months

Chemical factory, dust & acid mist environment: 5,000–8,000 hours

Mandatory Replacement Trigger: Differential pressure ΔP ≥ 0.07 MPa or visible oil carryover in refrigerant pipeline

Differential Pressure Thresholds

Initial pressure drop of new element: ≤0.018 MPa

Alarm replacement differential pressure: ≥0.07 MPa

Structural Construction Features

Double perforated anti-rust steel cages, anti-deformation under refrigeration system pressure fluctuation

Built-in independent central oil return channel, automatically recovers separated lubricant back to compressor crankcase

Fully sealed metal top cap, prevents refrigerant gas bypass leakage

Key Product Advantages

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

Multi-layer deep pleated structure greatly expands filtration area, absorbs massive oil sludge, carbon deposits and system solid impurities; differential pressure rises slowly during full service cycle, reducing chiller energy consumption caused by excessive resistance.

Special refrigeration oil compatibility treatment, stable low oil carryover long-term

Fluorinated oleophobic coating avoids oil film adhesion on filter media, coalesced oil quickly flows back to crankcase through central tube, effectively prevents refrigerant oil loss and ensures stable heat exchange efficiency of evaporator/condenser.

Pressure fluctuation resistant heavy-duty structure for refrigeration system

Thickened double-layer steel support cage adapts to frequent start-stop pressure shock of chillers, no media collapse or oil leakage failure during long-term operation.

Working Principle

High-pressure mixed gas of refrigerant + lubricating oil discharged from screw compressor enters outer perforated cage of separator core; large oil droplets are intercepted and initially settled on outer drainage fleece by gravity.

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

Coalesced refrigeration lubricant flows downward along media layers, converges into central built-in oil return tube and recirculates back to compressor crankcase for reuse.

Low-oil refrigerant gas flows out from inner core outlet to condenser, expansion valve and evaporator to complete refrigeration cycle.

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

Application Scope

Commercial building central air conditioning cold stations, food processing cold storage, chemical factory process cooling, pharmaceutical low-temperature production lines, data center precision cooling units, industrial large-scale ice water systems.