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Coalescer Separator Systems
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Coalescer Separator Systems

Coalescer Separator Systems remove free and emulsified water down to single-digit ppm levels without heat or vacuum — the purification method specified in aviation fuel handling (per API/EI 1581 coalescer element standards) and adapted here for industrial oil purification.

Coalescer Separator Systems Manufacturers


Engineering & Working Principle

Oil passes through a coalescing element with graduated pore structure that captures micron-sized water droplets and forces them to merge into larger droplets. These droplets then either settle by gravity into a water sump or are rejected by a downstream hydrophobic separator stage, while a final particulate filter polishes the oil to target cleanliness.

Technical Specifications

  • Water removal efficiency: down to <15 ppm free/emulsified water (application dependent)
  • Coalescing element rating: per API/EI 1581 equivalent design principles
  • Operating pressure drop: 0.3–1.5 bar (clean to dirty element range)
  • Throughput: 500 LPH to 15,000+ LPH
  • No heat or vacuum input required — ambient temperature operation
  • Final polishing filtration: down to 3 microns

Standards Compliance

Design principles aligned with API/EI 1581 coalescer element standards (adapted for industrial oil service)

Key Features

  • Energy-efficient — no heating or vacuum system required
  • Multi-stage coalescing + hydrophobic separation + polishing filter
  • Low maintenance, long element service life
  • Compact footprint versus vacuum dehydration alternatives
  • Portable cart or fixed skid configurations

Applications

Hydraulic and lubricating oil systems, fuel oil purification, aviation and marine fuel handling, and transformer oil pre-treatment.

Why It Outperforms Standard Systems

Where vacuum dehydration requires energy-intensive heating, our coalescer systems achieve comparable free-water removal at ambient temperature — ideal as a first-stage or standalone solution where energy efficiency and simplicity matter most.

Benefits

  • Energy-efficient water removal with no thermal input
  • Protects against water-driven corrosion, rust, and additive depletion
  • Lower operating cost than vacuum-based alternatives for free-water duty
  • Simple, reliable operation with minimal moving parts

Need to Make An Enquiry

A coalescer uses graduated-pore media to merge fine water droplets into larger ones for gravity or hydrophobic separation at ambient temperature — no rotating equipment or heat/vacuum input is required, unlike centrifugal or vacuum dehydration systems.

Coalescer systems typically achieve free/emulsified water levels below 15 ppm, depending on influent contamination and specific application — comparable to aviation-grade fuel/water separation standards.

Yes — since no heating or vacuum pump is required, operating costs are significantly lower for applications where free-water removal (rather than deep degassing) is the primary requirement.

Aviation and marine fuel handling, hydraulic and lubricating oil systems, and transformer oil pre-treatment ahead of vacuum dehydration are the most common applications.

Element life depends on contamination load and water content of the influent oil; differential pressure monitoring across the coalescer stage indicates when replacement is needed to maintain separation efficiency.

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