Our Vortex Flow Control (VFC) is a self-activating device which induces a vortex motion in the flow to control the rate at which water is allowed to enter downstream drainage systems. The energy inherent in the water flow is harnessed to generate the vortex and hence the device has no need of external energy supplies; furthermore, the Flow Control itself has no moving parts.

The VFC has a superior hydraulic performance when compared to conventional flow controls such as orifice plates, throttle pipes and penstocks and, with outlet diameters up to 400% larger than conventional flow control devices, the risk of blockage is minimised.