ACU-VORTEX (Vortex Flow Regulator)

Range of Application

During a storm event, the high volume of flowing water can overload the sewer systems and storage basins causing an overflow to occur, flooding the entire system. The ACU-VORTEX Vortex Flow Regulator is designed to regulate the flow from entering storm water overflow systems, combined sewer overflow (CSO) systems, sanitary sewer overflow (SSO) systems, retention tank overflows and basin overflows.


  • No external torque/energy required
  • No moving parts
  • Unlimited flow range
  • Self-cleaning
  • Easy to install
  • Retrofit into existing structures
  • Various installation options
  • Stainless steel construction

System Operation

The ACU-VORTEX Vortex Flow Regulator design is based on the forced vortex principle. The ACU-VORTEX Vortex Flow Regulator regulates large upstream flows by the motion of the fluid passing through the StormFlow Vortex Regulator at a high enough velocity, allowing it to enter vortex motion. This motion allows for the fluid to discharge at a smaller, constant rate. Various models are available to accommodate any type of flow regulation required.