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Vortex Flow SuDS attenuation control
Vortex Flow Control
A vortex flow control device is commonly positioned downstream of an attenuation tank to limit the outgoing flow. The vortex flow regulator initiates a passive vortex in the body of the vortex device. This leads to a notable reduction in discharge rates compared to an equivalent diameter orifice i.e a vortex with the same inlet diameter as an orifice would pass a reduced dicharge. Alternatively the same discharge rate could be passed with a bigger inlet using a vortex device. The benefit of a bigger inlet is reduced blockage risk.
Another benefit of using a vortex device is presented in the Head-dicharge (Q-h) relationship. Vortex development consists of a number of phases. Initially there is open channel flow until the outlet opening reaches top level, this is briefly followed by orifice control; from this point there is a turbulent transition mode where a vortex initiates; followed finally with fully established vortex flow. The unique nature of this curve means that the average flow of a vortex device is higher in the range of head being considered than an orifice. The upstream storage can therefore be lower using a vortex device.
Vortex devices can be be attached to a headwall on the outlet of the SuDS basin or more typically they are installed inside a chamber downstream of an attenuation tank/crate system.
In order to quote for a vortex device we require:
- allowable discharge rate
- head (mm)
- outlet pipework diameter.
Stainless Steel Vortex Flow Control Device
£1,049.00
*Please note these are built to order - lead time 7-10 working days* *Curved mounting price assumes 1200mm chamber or smaller. For larger chambers, flows or head please get in touch* Vortex Flow Control devices are devices used downstream of attenuation systems. They operate by generating a vortex flow path within the device which in turn imped...
Vortiflo Vortex Flow Control Chamber
£2,239.00
*POA, head and flow required to price correctly* **Please note these are built to order - lead time 10-15 working days** ***The Vortiflo range is not supplied with a cover*** Vortiflo Vortex Flow Control Chambers are specifically designed for controlling the flow of storm water from large volume attenuation systems, preventing downstream floodin...
Vortiflo Complete Vortex Flow Control Chamber 1050mm
£2,749.00
The new VORTIFLO 1050mm Flow Control Chamber range features the innovative new FlowBrake® Maxi - Vortex flow control, which is integrated into the outlet manifold of the chamber. The outlet manifold is also fitted with a Ø110mm overflow pipe, designed to operate in the unlikely event of blockage. The Flow Brake Maxi has been meticulously designe...
Mountable Vortex Flow Control FlowBrake Maxi
£899.00
The Vortiflo FlowBrake is designed to control the rate of water that passes through an attenuation tank, SuDS basin or SuDS pond. Its primary function is to slow down the flow rate of water, reducing the peak rate and ensuring a controlled release. The use of the Vortiflo FlowBrake downstream of an attenuation tank ensures that the release of st...
Mountable Vortex Flow Control FlowBrake Midi
£799.00
The Vortiflo FlowBrake is designed to control the rate of water that passes through an attenuation tank, SuDS basin or SuDS pond. Its primary function is to slow down the flow rate of water, reducing the peak rate and ensuring a controlled release. The use of the Vortiflo FlowBrake downstream of an attenuation tank ensures that the release of st...
Vortiflo Midi Complete Vortex Flow Control 600mm Ø Chamber
£1,599.00 £3,589.00
The Vortiflo Complete Vortex Flow Control 600mmØ Chamber is a compact flow control chamber placed downstream of attenuation tanks. The VORTIFLO 600mm Flow Control Chamber range features the innovative new FlowBrake® Midi- Vortex flow control, which is integrated into the outlet manifold of the chamber. This version of the FlowBrake has a range...
Vortex flow control shaft VS-Control flex M
£1,299.00
The vortex flow control shaft can regulate flows of up to 65 l/s. The vortex flow control shaft VS-Control External is ideal for retention systems fitted with EcoBloc elements or retention tanks. Continuously variable installation depth of 985 mm – 6500 mm (38.8" – 21' 4") Minimal height offset between the inlet and the outlet (315 mm (12.4") V...
Vortiflo Complete Vortex Flow Control Chamber 300 and 450mm
£989.00
The Vortiflo range is a series of Vortex Flow Control Chambers accommodating a range of flow rates available in 300mm and 450mm diameter, pre-assembled flow control chamber, delivered ready to install The VFCC300 and VFCC450 model are designed for flow rates up to 2.1 L/sec dependent on design head The larger diameter models in the Vortiflo rang...