Oil Separators Filters

Core Technical Specifications

Filtration Grade: Main lubrication circuit protective filter

Absolute Filtration Precision: 10 μm

Capture Efficiency: ≥99.8% for solid contaminants ≥10 μm

Filter Media: Imported deep-pleated composite filter paper, oil & acid resistant, anti-hydrolysis, stable low pressure drop

Max Continuous Working Pressure: 1.6 MPa

Operating Temperature Range: -10°C ~ +120°C

Max Lubricant Flow Rate: 190 L/min

Clean low-dust workshop: 2,000 operating hours or 12 months

Heavy dust, high temperature, 24/7 full-load continuous operation: 1,200–1,600 hours

Mandatory Replacement Trigger: Abnormal oil pressure rise, differential pressure ΔP ≥ 0.03 MPa

Differential Pressure Threshold

Initial Pressure Drop of New Element: ≤0.01 MPa

Alarm Replacement Differential Pressure: ≥0.03 MPa

Structural Features

Full cold-rolled steel spin-on shell, anti-rust and high pressure resistant

Built-in differential pressure bypass relief valve: Automatically opens at 0.03 MPa to avoid rotor oil cut-off

Nitrile rubber full-circle sealing gasket, compatible with all compressor lubricants, zero oil leakage

Thick perforated inner support core, prevents media collapse under high lubricant flow surges

Key Product Advantages

Critical protection for compressor main rotor bearings and gearbox assembly

Intercepts metal abrasive chips, carbon deposits and pipeline dust generated during unit operation, effectively prevents bearing abrasion, gear scratch and rotor surface damage, extends main unit overhaul cycle and reduces maintenance cost.

Large pleated filter media with high dirt holding capacity and gentle pressure rise curve

Large effective filtration area stores massive solid sludge contaminants; differential pressure climbs slowly during full service cycle to stabilize lubricant flow and maintain normal compressor operating temperature, cutting extra power consumption.

Built-in safety bypass valve ensures uninterrupted compressor operation

When filter media is fully blocked, internal relief valve automatically opens to maintain continuous oil circulation, eliminating emergency rotor burnout failure caused by oil supply interruption.

Full steel spin-on anti-corrosion structure for long service life

Anti-rust coated outer shell withstands long-term exposure to 120°C high-temperature lubricant, stable performance under heavy industrial continuous operation.

Spin-on tool-free quick maintenance design

Shut down compressor and release residual oil pressure, twist off old filter and screw on new cartridge within 3 minutes without special tools, minimizing unplanned production downtime.

Lubricant Filtration Working Principle

High-temperature lubricant discharged from compressor oil tank flows into filter outer layer from side inlet of spin-on housing.

Solid impurities such as metal chips, carbon sludge and dust are trapped on multi-layer filter paper surface; clean lubricant penetrates media and flows inward to central outlet core.

Purified clean oil circulates back to main rotor, bearings and gearbox for cooling and lubrication.

The filter cannot be cleaned or regenerated on-site. Once saturated with solid contaminants, differential pressure surges and filtration efficiency fails, requiring complete cartridge replacement.

Application Scope

Automotive component machining workshops, plastic injection molding factories, textile central compressed air supply, food packaging production lines, general metal welding and cutting workshops.