Coalescing Filters

Part No: KVF-375

Core Technical Specifications

Solid Particle Interception Accuracy: ≥0.01 μm residual fine particles

Adsorption Efficiency: 99.99% removal rate of compressor oil vapor and volatile organic hydrocarbons under rated airflow

Filter Media Structure

Outer green hydrophobic PU drainage foam (anti-re-entrainment)

Front built-in borosilicate microglass pre-screen to trap residual liquid oil mist

Core high-density coconut-shell granular activated carbon adsorption matrix, fully encapsulated anti-powder-shedding structure

Flow & Pressure Parameters

Rated Air Flow @7 bar, 20°C: 37.5 m³/min

Dry condition initial pressure drop: ≤1 psi (0.0069 MPa)

Max Working Pressure: 1.6 MPa (16 bar)

Operating Limits

Continuous Operating Temperature: 1.5°C ~ 60°C

Inlet Air Prerequisite: Must pass refrigerated/desiccant dryer + KOX ultrafine coalescer; zero liquid oil droplets allowed at inlet

Standard Replacement Cycle

Standard clean industrial working condition: 1,000 operating hours

High oil-load spray workshop / high humidity environment: Shorten to 600–800 hours

Replacement trigger: Downstream air has obvious oily odor OR differential pressure rises to 0.07 MPa

Differential Pressure Replacement Thresholds

Initial pressure drop of new element: ≤0.007 MPa

Mandatory replacement alarm threshold: ΔP ≥ 0.07 MPa

Sealing & Support Construction

End Caps: Reinforced black PA polymer integrated end caps with flow diversion ribs

Support Cage: Double-layer perforated 304 stainless steel inner & outer protective mesh, prevent carbon core deformation under high airflow

Key Product Advantages

Final-stage oil vapor removal barrier to produce Class 0 100% oil-free compressed air

Glass fiber coalescing filters can only remove liquid oil mist, while KVF-375 adsorbs invisible gaseous oil vapor that penetrates coalescer media. It completely eliminates oily odor and organic volatile contaminants to protect high-precision production equipment and finished product quality.

High-capacity encapsulated carbon matrix with stable long service life

Uniform high-porosity coconut shell activated carbon filling provides massive adsorption capacity. Front microglass pre-layer blocks residual liquid oil before contacting carbon core, avoiding premature carbon poisoning and extending effective service cycle.

Integrated anti-carbon-shedding sealed structure, no secondary pipeline pollution

Carbon adsorption core is fully wrapped and fixed by multi-layer stainless steel mesh and green foam. Zero carbon powder shedding under long-term large-volume airflow, preventing micro spray nozzles, laser optical lenses and cleanroom pipelines from blockage and carbon contamination.

Kaeser optimized low-loss flow channel design to reduce compressor energy consumption

Smooth graded flow structure minimizes airflow resistance; dry-state pressure loss is only 1 psi, much lower than generic aftermarket carbon filters, reducing continuous load and power consumption of main screw compressors, cutting long-term factory electricity costs.

Working Principle

Dry, pre-polished compressed air flows through the cartridge from outside to inside:

Front integrated microglass interception layer traps residual tiny liquid oil droplets and fine solid particles carried over from upstream KOX coalescer;

Clean dry gas penetrates the high-density activated carbon core; gaseous oil vapor, hydrocarbon and odor molecules are permanently adsorbed onto carbon micropores;

Outer green stainless steel protective mesh prevents carbon foam abrasion and carbon powder from flowing into downstream piping;

Oil-vapor-free, odorless compressed air exits from the inner stainless steel support tube and supplies terminal high-precision production equipment.

Application Industries

Automotive large electrostatic spray booths, heavy industrial laser cutting equipment, pharmaceutical mass aseptic filling production lines, central cleanroom air supply for electronics assembly, food & beverage sterile packaging factories, medical central medical gas supply, multi-station precision automation production lines requiring ISO 8573-1 Class 0 oil-free compressed air.