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Oil-Water Interceptors

Intercept fuel / oil before it enters sewer or drainage

Designed to meet EN858 standards, Molloy's range of interceptors each use high quality precast concrete tanks. The interceptors are designed for a wide variety of uses:

Full retention, By-pass and Forecourt separators

Flexible and robust designs, easy to maintain

Forecourt oil-water interceptor installation Bypass oil-water separator system
Full retention interceptor icon

Full retention

Full retention separators treat the full flow that can be delivered by the drainage system.

By-pass interceptor icon

By-pass

Allows a flow in excess of maximum permissible effluent flow to bypass the interceptor.

Forecourt interceptor icon

Forecourt

Specified to retain on site the maximum spillage likely to occur on a petrol filling station.

Full retention interceptor

Aswaclear® NS80

Oil interceptor - NS80
Drawing ID:
FR_NS80_2L_220818
Nominal flow:
80 l/s
Drainage area:
4444 m2
Silt storage capacity:
8200 litres
Oil storage capacity:
2400 litres
Technical drawing Get quotation

Aswaclear® NS70

Oil interceptor - NS70
Drawing ID:
FR_NS70_2L_250219
Nominal flow:
70 l/s
Drainage area:
3888 m2
Silt storage capacity:
8200 litres
Oil storage capacity:
2400 litres
Technical drawing Get quotation

Aswaclear® NS50

Oil interceptor - NS50
Drawing ID:
FR_NS50_2C_210818
Nominal flow:
50 l/s
Drainage area:
2777 m2
Silt storage capacity:
5000 litres
Oil storage capacity:
2000 litres
Technical drawing Get quotation

Aswaclear® NS40

Oil interceptor - NS40
Drawing ID:
FR_NS40_2Splus_210818
Nominal flow:
40 l/s
Drainage area:
2222 m2
Silt storage capacity:
4000 litres
Oil storage capacity:
1910 litres
Technical drawing Get quotation

Aswaclear® NS30

Oil interceptor - NS30
Drawing ID:
FR_NS30_L_210818
Nominal flow:
30 l/s
Drainage area:
1666 m2
Silt storage capacity:
4100 litres
Oil storage capacity:
1200 litres
Technical drawing Get quotation

Aswaclear® NS20

Oil interceptor - NS20
Drawing ID:
FR_NS20_S_210818
Nominal flow:
20 l/s
Drainage area:
1110 m2
Silt storage capacity:
2170 litres
Oil storage capacity:
770 litres
Technical drawing Get quotation

Aswaclear® NS15

Oil interceptor - NS15
Drawing ID:
FR_NS15_S_210818
Nominal flow:
15 l/s
Drainage area:
833 m2
Silt storage capacity:
2170 litres
Oil storage capacity:
770 litres
Technical drawing Get quotation

Aswaclear® NS100

Oil interceptor - NS100
Drawing ID:
FR_NS100_2D_220818
Nominal flow:
100 l/s
Drainage area:
5555 m2
Silt storage capacity:
12000 litres
Oil storage capacity:
3100 litres
Technical drawing Get quotation

Aswaclear® NS10

Oil interceptor - NS10
Drawing ID:
FR_NS10_Hplus_140818
Nominal flow:
10 l/s
Drainage area:
555 m2
Silt storage capacity:
1370 litres
Oil storage capacity:
460 litres
Technical drawing Get quotation

Aswaclear® NS06

Oil interceptor - NS06
Drawing ID:
FR_NS06_H_140818
Nominal flow:
6 l/s
Drainage area:
335 m2
Silt storage capacity:
890 litres
Oil storage capacity:
340 litres
Technical drawing Get quotation

Aswaclear® NS03

Oil interceptor - NS03
Drawing ID:
FR_NS03_H_140818
Nominal flow:
3 l/s
Drainage area:
170 m2
Silt storage capacity:
890 litres
Oil storage capacity:
340 litres
Technical drawing Get quotation

Bypass interceptor

Aswaclear® NSB80

Oil interceptor - NSB80
Drawing ID:
NSB80-LD-201218
Nominal flow:
80 l/s
Peak flow:
800 l/s
Drainage area:
44444 m2
Silt storage capacity:
8000 litres
Oil storage capacity:
1500 litres
Technical drawing Get quotation

Aswaclear® NSB70

Oil interceptor - NSB70
Drawing ID:
NSB70-2L-250219
Nominal flow:
70 l/s
Peak flow:
700 l/s
Drainage area:
38888 m2
Silt storage capacity:
7000 litres
Oil storage capacity:
1500 litres
Technical drawing Get quotation

Aswaclear® NSB50

Oil interceptor - NSB50
Drawing ID:
NSB50-2L-150219
Nominal flow:
50 l/s
Peak flow:
500 l/s
Drainage area:
27777 m2
Silt storage capacity:
7320 litres
Oil storage capacity:
1200 litres
Technical drawing Get quotation

Aswaclear® NSB40

Oil interceptor - NSB40
Drawing ID:
NSB40-2Splus-010219
Nominal flow:
40 l/s
Peak flow:
400 l/s
Drainage area:
22222 m2
Silt storage capacity:
4850 litres
Oil storage capacity:
1200 litres
Technical drawing Get quotation

Aswaclear® NSB30

Oil interceptor - NSB30
Drawing ID:
NSB30-2Splus-010219
Nominal flow:
30 l/s
Peak flow:
300 l/s
Drainage area:
16666 m2
Silt storage capacity:
4850 litres
Oil storage capacity:
950 litres
Technical drawing Get quotation

Aswaclear® NSB20

Oil interceptor - NSB20
Drawing ID:
NSB20-SplusHplus-010219
Nominal flow:
20 l/s
Peak flow:
200 l/s
Drainage area:
11111 m2
Silt storage capacity:
3730 litres
Oil storage capacity:
445 litres
Technical drawing Get quotation

Aswaclear® NSB15

Oil interceptor - NSB15
Drawing ID:
NSB15-SplusHplus-010219
Nominal flow:
15 l/s
Peak flow:
150 l/s
Drainage area:
8333 m2
Silt storage capacity:
3310 litres
Oil storage capacity:
455 litres
Technical drawing Get quotation

Aswaclear® NSB10

Oil interceptor - NSB10
Drawing ID:
NSB10-SH-010219
Nominal flow:
10 l/s
Peak flow:
100 l/s
Drainage area:
5555 m2
Silt storage capacity:
2860 litres
Oil storage capacity:
320 litres
Technical drawing Get quotation

Aswaclear® NSB06

Oil interceptor - NSB06
Drawing ID:
NSB06-HH-010219
Nominal flow:
6 l/s
Peak flow:
60 l/s
Drainage area:
3333 m2
Silt storage capacity:
1600 litres
Oil storage capacity:
320 litres
Technical drawing Get quotation

Aswaclear® NSB03

Oil interceptor - NSB03
Drawing ID:
NSB03-HH-130818
Nominal flow:
3 l/s
Peak flow:
30 l/s
Drainage area:
1666 m2
Silt storage capacity:
1600 litres
Oil storage capacity:
320 litres
Technical drawing Get quotation

Forecourt interceptor

Aswaclear® NS10

Oil interceptor - NS10
Drawing ID:
FC_NS10-LH-121018
Nominal flow:
10 l/s
Drainage area:
555 m2
Silt storage capacity:
1000 litres
Oil storage capacity:
7600 litres
Technical drawing Get quotation

Aswaclear® NS06

Oil interceptor - NS06
Drawing ID:
FC_NS06-LH-121018
Nominal flow:
6 l/s
Drainage area:
335 m2
Silt storage capacity:
1000 litres
Oil storage capacity:
7600 litres
Technical drawing Get quotation

Get an interceptor quote

Choose your interceptor type

Bypass interceptor →
Forecourt interceptor →
Full retention →

Or call 057 93 26000