Oil Separators Filters

Core Technical Specifications

Filtration Grade: Main lubricant circuit protective filter

Absolute Filtration Precision: 10 μm

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

Filter Media: Composite deep-pleated filter paper imported from Ahlstrom / HV, acid & oil resistant, anti-hydrolysis

Max Continuous Working Pressure: 1.6 MPa

Max Oil Flow Rate: 180 L/min

Standard Replacement Cycle

Normal clean workshop environment: 2,000 operating hours or 12 months

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

Mandatory Replacement Trigger: Oil pressure abnormal rise, differential pressure ΔP ≥ 0.03 MPa

Initial Pressure Drop of New Element: ≤0.01 MPa

Alarm Replacement Differential Pressure: ≥0.03 MPa

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

Built-in bypass relief valve: Automatically opens when pressure difference exceeds 0.03 MPa to avoid oil supply interruption to main rotor

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

Anti-corrosion inner support core, prevents media collapse under high oil flow surges

Key Product Advantages

Critical protection for compressor main rotor bearings and gearbox

Intercepts metal abrasive particles, carbon sludge and pipeline dust generated during compressor operation, prevents bearing wear, gear scratch and rotor surface damage, greatly extends host service life and reduces overhaul cost.

Large pleated filter media with high dirt holding capacity

Large effective filtration area holds massive solid contaminants, differential pressure rises slowly throughout service cycle, maintains stable lubricant flow and normal compressor operating temperature.

Built-in safety bypass valve for uninterrupted compressor operation

If filter media is fully blocked, internal relief valve automatically opens to guarantee continuous oil circulation, avoiding rotor burnout caused by oil cut-off emergency failure.

Oil-resistant full steel spin-on structure for long service life

Anti-rust coating shell withstands high-temperature lubricant corrosion, stable performance under long-term 120°C oil temperature working conditions.

Simple spin-on quick-replace design for fast maintenance

Shut down compressor and release residual oil pressure, twist off old filter and screw on new unit within 3 minutes without professional tools, low maintenance difficulty and short equipment downtime.

Lubricant Filtration Working Principle

Hot lubricating oil discharged from compressor oil tank flows into the outer layer of filter paper from the side inlet of the spin-on housing.

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

Purified clean lubricant flows back to main rotor, bearings and gearbox for circulation cooling and lubrication.

After long-term operation, filter paper is saturated with solid sludge, differential pressure increases continuously. Once pressure reaches 0.03 MPa, internal bypass valve opens for emergency oil supply; filter cannot be cleaned and must be fully replaced.

Application Scope

General machinery processing workshops, plastic injection molding factories, textile central air supply, food packaging production lines, small automotive component manufacturing plants.