Bypass Interceptors

Bypass interceptors with a device which allows a flow in excess of the maximum permissible effluent flow to bypass the interceptor. Bypass interceptors fully treat all flows generated by rainfall rates of up to 5mm/h. This covers over 99% of all rainfall events. Flows above this rate are allowed to by-pass the interceptor. These interceptors are used when it is considered an acceptable risk not to provide full treatment for high flows, for example where the risk of a large spillage and heavy rainfall occurring at the same time is minimal.

Downloads

Aswaclear® Bypass Interceptors from Molloy Precast
Reference and unit nominal size	Nominal Flow (l/s)	Peak Flow (l/s)	Area Covered (m2)	Maximum Silt storage Capacity (L)	Oil retention capacity (L)	Total System Volume (L)	PDF Drawing Download
NSB – 010 – HH  6”	6	60	3333	1000	400	5000
NSB – 010 – HHH  9”	10	100	5555	1500	400	7500
NSB – 010 – HHH  12”	12	120	6666	1500	400	7500
NSB – 020 – CH – 375	20	200	11111	2000	400	10500
NSB – 030 – CC - 600	30	300	16666	3000	1000	16000
	10% of peak flow	At 65mm rain per hour	Area for nominal flow	Clean at 80%	Clean at 10-20%

Reference Log:

NSB = Nominal size Bypass
C/H = Molloy Precast Tank type 
6”= input/output pipe diameter in inches