INDUSTRY COMPONENT

Coalescing Filter Element

Coalescing filter element for separating oil from compressed air in industrial systems

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Component Specifications

Definition
A specialized filtration component designed to remove oil aerosols and liquid oil droplets from compressed air streams through coalescence, typically used downstream of compressors in oil-lubricated systems. It consists of multiple layers of fine fibers that capture microscopic oil particles and coalesce them into larger droplets that drain by gravity.
Working Principle
Operates on the principle of coalescence where microscopic oil aerosols (0.01-1.0 μm) are captured by fine fiber media through diffusion, interception, and impaction mechanisms. The captured particles coalesce into larger droplets on the fiber surfaces, which then migrate through the media and drain by gravity when they reach sufficient size.
Materials
Multi-layer construction with borosilicate glass microfibers, synthetic polymer fibers (polypropylene, polyester), or stainless steel mesh. Outer protective layers typically made of polyester or polypropylene. End caps usually constructed from polycarbonate, aluminum, or stainless steel.
Technical Parameters
  • Service Life 4000-8000 operating hours
  • Temperature Range -20°C to 80°C
  • Oil Removal Capacity Up to 500 g/m³
  • Filtration Efficiency 99.99% at 0.01 μm
  • Initial Pressure Drop 0.1-0.3 bar
  • Maximum Operating Pressure 16 bar (232 psi)
Standards
ISO 8573-1:2010, ISO 12500-1:2007, DIN 3188, DIN ISO 8573-4

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Coalescing Filter Element.

coalescing filter oil separator filter compressed air filtration oil removal filter industrial air filter coalescence technology Coalescing Filter Element Coalescing Filter Element in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Oil Separator

A component in vacuum pump systems that separates oil from the gas stream to maintain pump efficiency and prevent oil contamination.

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Air Filter/Dryer

A component that removes contaminants and moisture from compressed air in purge systems.

View Product Details

Oil-Water Separator

A device that removes oil and water contaminants from compressed air streams

View Product Details

Engineering Analysis

Risks & Mitigation
  • Media collapse under high differential pressure
  • Oil carryover due to improper installation
  • Reduced efficiency from media contamination
  • Pressure drop increase over time
  • Incompatibility with certain lubricants
FMEA Triads
Trigger: Excessive oil loading beyond design capacity
Failure: Media saturation leading to oil carryover
Mitigation: Install pre-filters, monitor pressure differential, implement regular maintenance schedule
Trigger: Improper installation or orientation
Failure: Reduced drainage efficiency and premature clogging
Mitigation: Follow manufacturer installation guidelines, ensure proper vertical orientation, verify drainage connections
Trigger: Chemical incompatibility with lubricants
Failure: Media degradation and loss of filtration efficiency
Mitigation: Verify lubricant compatibility, use appropriate media materials, conduct compatibility testing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% filtration efficiency, ±0.05 bar pressure drop tolerance
Test Method
ISO 12500-1 for oil removal efficiency, ISO 8573-1 for air quality classes, gravimetric analysis for oil loading capacity

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between coalescing filters and particulate filters?

Coalescing filters are specifically designed to remove liquid aerosols (oil, water) by coalescing them into larger droplets, while particulate filters remove solid particles. Coalescing filters typically have finer fiber structures and different media treatments.

How often should coalescing filter elements be replaced?

Replacement intervals depend on operating conditions, typically 4000-8000 hours or when pressure drop reaches 0.7-1.0 bar. Regular monitoring of pressure differential is recommended for optimal performance.

Can coalescing filters remove water vapor?

Coalescing filters primarily remove liquid aerosols and droplets. For water vapor removal, a desiccant dryer or refrigerated dryer should be used downstream of the coalescing filter.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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