OWS Flashcards
Three examples of coalescing media are:
- Metal plates
- Replaceable filters
- Brush assemblies
The oil bonds together forming droplets that float to the top of the tank and is drained off to:
Recovered Oil Tank
There are two types of OWS:
- Pressurized
- Vacuum/gravity
Vacuum/Gravity OWS come in ________.
two and three stage systems
The HELI-SEP Oily-Water Separator is a single vertical cylindrical vessel using the dual capabilities of gravity-assisted separation and coalescing to separate and remove:
- Insoluble oil
- Solids
- Entrained air from oily water
The vacuum/gravity design provides the most efficient and effective means of separating oil from water:
- It eliminates the expense associated with replaceable media such as coalescent filter elements
- The separating medium (beads) do not require replacement
The separator vessel is equiped with two sample valves to extract an oil sample and determine the ______.
Oil/Water interface level
The _______ is used for troubleshooting and repair procedures.
Oil Content Detector (OCD)
The control box contains:
- Power switch
- Operation switch
- Hand position
- Automatic position
Controls power to all internal circuits.
Power switch
The control box also contains three indicating lights:
- Red light illuminates when power is on
- Amber light illuminates when oil is being discharged from the system
- Green light illuminates when water is being discharges from the system
A ______ mounted on the vessel indicates vacuum or pressure inside the separators vessel
Combination Vacuum/Pressure Gauge
A ______ mounted on the on the systems pump outlet indicates the separators discharge pressure.
Pressure Gauge
Perform repair procedures per_________.
NSTM, Chapter 593
To establish if there is an air leak in the OWS, perform a ______ on the suction piping and the vertical cylindrical vessel.
Hydrostatic Test
