Q-Brake Vortex
Introduction to the system

ACO Q-Brake Vortex is a vertical vortex flow control designed to regulate stormwater flow before it discharges into watercourses or sewer networks.

Unlike more conventional methods e.g. orifice plates or sized pipework, ACO Q-Brake Vortex is less prone to blockage and permits higher flow at a lower head of water, as a vortex flow control allows an outlet orifice 4-6 times larger in crosssectional area to be used.image

ACO Q-Brake Vortex has clear openings larger than traditional methods of flow control, which makes the system less prone to blockage. The absence of any loose parts also reduces maintenance requirements.

ACO Q-Brake Vortex is fitted with an integral bypass door which in the event of a blockage can be opened so the unit can be drained of water. A stainless steel wire attached to the bypass door is run to cover level and provides control of the bypass door. Once the water level within the manhole subsides the unit can be cleared.

Manufactured from grade 304 stainless steel, each ACO Q-Brake Vortex is individually configured to meet specific performance criteria. All seams are continuously welded in accordance with BS 4872 for maximum strength.

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  • Individually configured vertical vortex flow control
  • Larger clear opening than traditional orifice plate controls
  • Inlet/outlet determined by laboratory verified discharge curves
  • Emergency drain down
  • Remote access bypass door
  • Remote access cable for emergency drain down
  • Manufactured from grade 304 stainless steel


  • Controls discharge flow into watercourses or sewer networks
  • Provides predictable control performance
  • Self activating system
  • Minimises the risk of blockage
  • Reduces the need for maintenance
  • Removes the need for unnecessary man access
  • Simple installation
  • Fits a range of manhole designs
  • Durable and corrosion resistant system
  • Individually configured to suit specific performance criteria

Recommended applications

  • SUDS
  • Distribution yards
  • Industrial estates
  • Landscaping
  • Private parking areas
  • Public parking areas
  • Residential developments
  • Schools

Not recommended applications

  • Domestic use
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