Oil-Water Separators
Choosing Advanced Separation Technology
Oil-water separators that use coalescing technology have better separation and flow rates than same-sized gravity separators. The coalescing technology of a Xerxes separator removes free-floating oils and settleable solids from oil-water mixtures, and produces effluent quality to meet customer and regulatory requirements for water runoff. The fiberglass tank at the heart of the OWS is corrosion-resistant, a significant benefit when water is mixed with oils or fuels in a tank.
Diameters
Nominal diameters
from 4 feet to 10 feet
Capacities
600 to 30,000 gallons
5,000 to 113,000 liters
Models
Corrosion-resistant, watertight
single-wall and double-wall
Installations
One-piece, factory-fabricated tanks for quick and easy installation
Our two coalescing options provide superior separation
Using coalescing technology, which provides better separation and flow rates than same-sized gravity separators, our OWS tanks produce effluent quality to meet customer and regulatory requirements for water runoff. We have two equally effective coalescing options:
Vertical-tube coalescing media
Polypropylene vertical-tube matrix attracts small oil droplets. The oil-laden tubes provide additional surface area to attract more oil. Fiberglass clean-water collector and inlet diffuser direct flow and minimize turbulence, allowing for efficient separation.
Coalescing plate technology
Corrugated polypropylene plates provide oil-droplet coalescing. The angled-plate pack provides a maximum amount of coalescing surface area. With no moving parts, the coalescing pack can be cleaned in place and removed with lifting rods when full maintenance is needed.
Xerxes tanks meet – or exceed – industry standards
These industry standards address the growing need for oil-water separation.
UL 2215-listed
OWS with vertical-tube coalescing media
CAN/ULC S656-listed
OWS with coalescing plate technology
Customers select the appropriate flow rate and spill capacity for their specific needs, making Xerxes tanks ideal for a variety of sites and applications, including vehicle repair garages, bulk fuel plants, truck stops and commercial parking lots. Performance of a Xerxes oil-water separator is enhanced with the addition of a liquid-level monitoring system to gauge the oil level.

