Oil Water Separators

We offer a complete line of high efficiency above and below ground oil/water separators that conform to the guidelines of API 421 for the removal of all free and dispersed non-emulsified oil and solids that settle from the waste stream.

Features of the Oil & Water Separators

• Low maintenance costs
• Easy cleaning through removable vapor tight covers
• No moving parts
• No power consumption
• No consumable wearing elements
• No chemicals, absorbent or filter cartridges to remove, replace or dispose of
• Compact size
• Solids storage capability

Case Study: Oily Water Separator

• Case Study of Oil Water Separator w/ Wash/Rinse Sewer Pre-Treat System
  This project was unique in that it was located in one of the strictest wastewater authorities in the state of North Carolina. [ read full study ]
• Case Study of Truck Services Company Wash Bay – Wash/Rinse Closed Loop System
  This major truck services company was constructing a new wash bay at their facility outside city sewer limits. [ read full study ]

Water & Oil Separator Technology

The most common approach to the design of oil water separators is to configure parallel corrugated plates that cause the oil droplets to increase in size, thereby speeding the gravity separation process. We use a unique Unipack cross fluted design with an internal structure of interconnecting channels having many crossing points between adjacent plates. This produces enhanced efficiencies in significantly smaller units. Our Unipack construction requires a unit with only 5000 gallons capacity to produce the same yield of a traditional separator unit with 15,000 gallon capacity at a flow rate of 500 gallons per minute.

Our staff of experienced professional engineers are dedicated to providing customers with innovative and effective solutions to the problems of contaminant elimination in waste water to maintaining optimal adherence to established conformance standards and industry best practices.

Coalescing of the oil droplets takes place in three steps:

1. Droplets are intercepted by the corrugated plates as the oil/water mixture flows through the separator.
2. New droplets coalesce with retained droplets, to make larger droplets.
3. Enlarged droplets are released and rise to the surface to be decanted into a storage tank. Since Stokes' Law calculations are based on a flow of zero velocity through the Unipack plate, a Reynold's number of less than 500 will ensure optimum separation in an Oil/Water Separator.

How does the flow process work?

You can click here to learn more about the Above Ground Oil Water Separator Flow Process and Design.

Are you interested in a below ground oil and water separator? Please visit our below ground oil water separator units page for more information.