The Pan America Environmental FB series is a family of API421 based steel, above grade, flat bottomed coalescing oil water separator designs that can be applied to many applications where oils, fuels and many petroleum derived products are present.


  • Proven reliability
  • Flow rates from 5 to 5000 GPM
  • Economical construction:  304/316 SS, polypropylene/polyethylene, coated carbon steel
  • Saves floor space
  • Many possible integrated options
  • Variety of plate spacings
  • Highly customizable design
  • Low profile height

Process Overview

The FB design is most commonly used wherever oils and fuels can come into contact with a low to no solids wastestream.

How It Works

The FB places a volume of corrugated Flopak coalescing media into the waste stream, the tank’s flow path brings the oils and solids bearing water to the influent end of the plate pack, it flows horizontally through the pack where oils then encounter the plate surface and are effectively separated from the water, the oil droplets roll up the plate surface begin to coalesce into larger droplets. Then, the larger droplets increased buoyancy pulls the oils away from the surface rising to the water surface.


Ideal For:

  • Groundwater Remediation
  • Refineries
  • Vehicle Wash Racks
  • Military Wash Racks
  • Industrial Process Water
  • Steel Mills
  • Stormwater Treatment
  • Shipping Ballast & bilge water treatment.
  • Tank Farms
  • Petro-Chemical
  • Power Generation
  • Heat Treating

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