Aluceptor - Full Retention Separators

Our Aluceptor range shown in the table opposite features retentions from 1800 litres up to 14,400 litres in single cell units. Larger systems are available up to 250,000 litres. Aluceptor picture The Nominal Size of the unit is given to the treated flow through the unit, which is calculated from the given catchment area that the separator is serving.

The calculation which identifies the size of retention unit required is:

A (drainage area m2) x 0.018 = Nominal Size Unit.

So as an example the separator required for a catchment area of 333m2 would be calculated as follows:

A (333m2) x 0.018 = NS 5.9. So for this application we would supply our NS6.

However, as can be seen in the chart this would only give a Full Retention capacity of 3880 litres. Typically if this were a petrol forecourt fuelling area, then the volume in the separator would not meet the requirement for retention. It is recommended that the unit be sized to retain the spillage of the largest tanker cell that is being delivered to a particular hard standing area.

Larger Sizes Available on Request.

Model Area Drained Class Diameter(mm) Length (mm) Overall Height (mm) Capacity (litres) Access Dia (mm)
Silt Oil
ANS4 222 1 & 2 1000 2400 1300 30 30 600
ANS6 333 1 & 2 1220 2400 1830 600 60 600
ANS10 556 1 & 2 1530 2600 1830 1000 100 600
ANS15 833 1 & 2 1530 3600 1830 1500 150 600
ANS20 1111 1 & 2 1840 3500 2140 2000 200 600
ANS25 1289 1 & 2 1840 4350 2140 2500 250 600
ANS30 1667 1 & 2 1840 5150 2140 3000 300 600
ANS40 2222 1 & 2 1840 6750 2140 400 600 600
ANS50 2778 1 & 2 1840 8390 2140 5000 500 2x600
ANS60 3333 1 & 2 1840< 10000 2140 6000 600 2x600

Forecourt Separators

It is important to install a forecourt separator of an appropriate size. On a forecourt where tanker deliveries are received, a separator with an oil storage capacity of 7,600 litres will meet the requirements of BS EN 858-2, clause 4.3.6. If a smaller unit is proposed, the size should be determined by undertaking a risk assessment incorporating catchment size, potential spillages during delivery, and other risks such as safety issues. If the compartment size of the tanker that delivers to your site is greater than 7,600 litres your separator should be sized accordingly.

Model Class Diameter(mm) Legth (mm) Overall Height (mm) Capacity (litres) Access Dia (mm)
APFS 1 & 2 1840 3900 2140 9900 600