Interceptors

What are they? Where are they used?
An interceptor is a container made from plastic, fibre glass, steel. It prevents oil collected from a site being discharged into a storm drain, waterway, stream or fowl sewer.

When the area to be drained is assessed it is rated whether it is high, medium or low risk, thus determining the type of interceptor used.

In high and medium risk areas, e.g. petrol forecourts, full retention interceptors are used. This allows an amount of oil to be stored within the unit, depending on its size and area. These units can range from 2,000 litres up to 30,000 litres and can have a rating of Class 1 or Class 2.

Class 1 units allow 5 parts per million of oil to be discharged at the outlet.
Class 2 units allow 100 parts per million of oil to be discharged.
These units can be fitted with automatic closure devices and coalescing filters.

In low risk areas, e.g. car parks, housing estates and builders yards, a by pass interceptor is used. This unit will collect the initial wash of the yard which will contain all the contamination and there after the rain water will be bypassed to a storm drain, stream etc. These units are available for areas of 500m2 to 100,000m2. On site pipe work along with volume of water on site will determine size of pipework on the interceptor.

Full Retention - Bypass interceptors
Silt traps - Atlenuation tanks

Class 1 Interceptors
From 5,000 litres to 10,000 litres
Manufactured from high density polyethylene in accordance with BS8301, Part 1

2,500 Litre Interceptor
Manufactured from high density polyethylene in accordance with BS8301, Part 1
Much stronger and more robust than inferior fibreglass imports currently on the market

1000 Litre Silt Trap

Range of Bypass Petrol Interceptor