An oil interceptor is required wherever lubricating oil, cutting oil, kerosene, gasoline, naptha, paraffin, trisodium phosphate and numerous other light density and volatile liquids are present in the drainage system.

In commercial establishments such as service stations, garages, auto repair shops, dry cleaners, laundries, industrial plants or process industries having machine shops, metal treating process rooms, chemical process or mixing rooms, etc., there is always the problem of flammable or volatile liquids entering the drainage system which can contaminate the sewer line and cause a serious fire or explosive condition.

Oil interceptors are designed to separate oils and other light density volatile liquids which are discharged into the drainage system.

The interceptor is installed between the drain and the sanitary system so the liquids passing through the interceptor are trapped and separated by gravity through a baffle arrangement and are then diverted to an accumulator chamber and removed through the gravity draw-off built into the interceptor. This draw-off can be piped directly to a storage tank so the interceptor continuously and automatically drains the accumulated oils.

Each Oil Interceptor is furnished with a sediment bucket which collects chips, particles or other sediment frequently present in industrial waste that could clog the drainage system. A gasketed removable cover provides access for cleaning the interceptor. To eliminate pressure build-up inside the interceptor, a vent connection on each side of the body allows the venting of the interceptor.

A SMITH Oil Interceptor is sized in accordance with maximum anticipated gallon per minute flow rate of water that would be discharged through the drains it serves. A flow control fitting of the exact gallon per minute interceptor rating insures maximum oil interception efficiency.