Oil interceptor Flashcards
The primary function of an oil interceptor is
To prevent oil and other flammable fluids from entering the sanitary drainage system
After the oil and water have separated, the oil is
Retained in the interceptor until removed for disposal, or discharged to a secondary containment unit
Oil interceptors are required to be installed in
Any building where motor vehicles are maintained, serviced or duplicated, and any building where oil is used in the production process
Petroleum-based products will separate from water, and
Float to the top because they have a specific gravity less than water
Oil injectors can either be manufactured, or
Built on location
The most common fixture to be discharged into an oil interceptor is a
Floor drain
An oil interceptor requires a minimum of
2 vents
What is the function of the vent in an oil interceptor?
To eliminate flammable gases, from within the interceptor
When floor drains are located in different rooms are to be served by the same oil interceptor the floor drains
Must be individually, trapped and vented
When gang trapping floor dreams served by an oil interceptor
All of the answers
The minimum size vent required for a manufactured oil interceptor is
All of the entries
The minimum size vent for a built on location oil interceptor are
3 inches
The vent for an oil, intercepted terminate
Independently to open air
The minimum size of an oil interceptor vent when penetrating a building exterior wall or roof is
3 inches
In a multi chamber, oil, interceptor
I’ll compartments must be interconnected with a vent opening
A[__________ is required immediately downstream of an interceptor
Clean out
Similar to a manufactured grease interceptor, a manufactured oil interceptor requires
An FCD
It may be necessary to install an i1 1/2” vent downstream of an oil interceptor
True
When the secondary receiving tank is installed in conjunction with an oil interceptor, the interceptor must be equipped with a
Auto oil draw off
The minimum size event for secondary receiving tank located in a building is
1 1/2”
The auto oil draw off should be set at approximately ____ above the normal flow level of the interceptor
1/8”
Will interceptors equipped with an electronic centre will
All of the answers
The minimum vent termination height for vent pipes serving an oil interceptor are
2000 mm, 2300 mm above grade
Secondary flow control device are required of the elevation difference between the fixtures and the oil intercept———-
1500 mm
Without the use of oil interceptors, what would be the effect on the public infrastructure
All of the answers
