What is an Oily Water Separator?

Опубликовано: 12 Август 2026
на канале: Separator Spares & Equipment, LLC
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This animated demonstration illustrates how the BOSS Oily Water Separator works. The BOSS Oily Water Separator is known worldwide as a simple, reliable, effective, and affordable oily water separator (OWS) that actually works.

0:00 What is an Oily Water Separator? An oily water separator is a device that separates oil from water. It must also have the ability to separate contaminants. Some of these contaminants include cleaning products, soot from combustion, rust, sewage, and other things that may be harmful to the ocean.
0:22 The goal of the oily water separator is to produce clean water for discharge.
0:29 A typical oily water separator consists of three (3) basic components:
0:36 - the separator unit,
0:37 - the filtration unit, and
0:38 - the oil content monitor and control unit.
0:42 While every oily water separator may differ mechanically based on its manufacturer, the science behind it is simple. The oil is less dense than water. It can be separated and removed by relying on the differences in specific gravity.
0:59 The oily bilge water passes through multiple stages. The first stage is to remove solids. Then a coalescer, where water and oil are broken apart to allow it to be skimmed off. The final stage is to remove residual oil and sludges not eliminated in the previous steps.
1:19 Oily water separators must be fitted with an oil content monitor. This samples water going overboard to ensure oil content is less than 15 ppm (parts per million). If it passes this check, the monitor allows the water to be discharged.
1:36 If the oil content is higher than 15 ppm, the oil content monitor activates an alarm, and the flow is stopped by an automatic shutoff valve.

Separator Spares & Equipment, LLC is an Authorized BOSS Separator Distributor and an Authorized BOSS Separator Service Center for oily water separators. We have a full-time service department that can service your oily water separator needs. We are committed to keeping your current bilge oily water separators environmentally compliant with USCG and IMO requirements.

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NOTE: This video is for visual demonstrations only, as technical modifications may have occurred. Putting together and installing must be carried out in accordance with BOSS's Installation Diagram, Equipment List, Instruction Manual, Operations Manuals, etc. This video is non-valid assistance to understanding the maintenance and/or troubleshooting -- valid is always the instruction manual that comes with the delivered BOSS Oily Water Separator.