Controflow exclusively from SuDS store

Controflow Combi


The Controflow Combi 500mm features a slide-out plate with orifice and a non-return valve. For connections to combined sewers, it offers design flexibility, with 110mm or 160mm pipe connections, for depths up to 1.2m.

Applications – for connecting SuDS features to combined sewers, such as retrofit raingardens and at the end of the management train.

The Controflow Combi is a flexible flow control chamber specifically for connection of SuDS features and site outfalls to combined sewers. The slide-out centre plate assembly includes a vertical pipe with an orifice control (optional stainless steel 10mm mesh guard available) and overflow, protected by a non-return valve outlet.

Three inlet pipe connection stubs, either 110mm or 160mm diameter, offer layout flexibility. Supplied with a temporary protective site cover (permanent cover and frame not included). An optional foul air trap is available for use when connected to combined sewers. The chamber is fully compatible with ‘Cloud Water Control’ wireless SuDS monitoring systems to remotely monitor live and historical stormwater performance.

Please specify:

  •  Cover to inlet depth ‘a’
  •  Weir to inlet depth ‘b’ (Head Driving Flow)
  •  Type/depth of cover/frame to be used
  •  If foul air trap is required
  • Orifice diameter  =
  • Flow Rate (l/s) Head Driving Flow (m)
    An animated cross section of the Controflow Combi
    A drawing of a Controflow Combi in section and plan view