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Oil Interceptors



Bypass Interceptors

By-pass oil interceptors have specified flow rates designed to fully treat flows generated from the majority of rainfall events. Flows generated from intense rainfall events in excess of the designed flow rates by-pass the interceptor. The first portion, which is heavily contaminated, is treated by the interceptor, while the extremely diluted flows are bypassed. These interceptors are used when it is considered an acceptable risk not to provide full treatment for high flows, for example, where there is a high risk of a large spillage and heavy rainfall occurring at the same time is minimal.

Aswaclear® NSB-006-2H
  Drawing number: NSB-006-HH
Nominal flow: 6 l/s
Peak flow: 60 l/s
Area covered: 3,333 m2
Max. silt storage cap.: 1,000 litres
Oil retention capacity: 400 litres
Total system volume: 5,000 litres
Aswaclear® NSB-010-3H
  Drawing number: NSB-010-HHH
Nominal flow: 10 l/s
Peak flow: 100 l/s
Area covered: 5,555 m2
Max. silt storage cap.: 1,150 litres
Oil retention capacity: 400 litres
Total system volume: 7,500 litres
Aswaclear® NSB-012-3H+
  Drawing number: NSB-012-3H+
Nominal flow: 12 l/s
Total system volume: 120 l/s
Area covered: 6,666 m2
Max. silt storage cap.: 1,500 litres
Oil retention capacity: 400 litres
Total system volume: 10,500 litres
Aswaclear® NSB-020-CH
  Drawing number: NSB-020-CH
Nominal flow: 20 l/s
Peak Flow 200 l/s
Area covered: 11,111 m2
Max. silt storage cap.: 2,000 litres
Oil retention capacity: 400 litres
Total system volume: 10,500 litres
Aswaclear® NSB-030-CC
  Drawing number: NSB-030-CH
Nominal flow: 30 l/s
Peak Flow 300 l/s
Area covered: 16,666 m2
Max. silt storage cap.: 3,000 litres
Oil retention capacity: 1,000 litres
Total system volume: 16,000 litres