HydroValves are used as part of a SuDS system to control the rate at which stormwater leaves a particular site.
Stormwater is stored on site in an underground storage tank which can be in the form of a modular block system, large diameter pipes, concrete tank or thermoplastic culvert.
A typical application of this valve is to control the flow from storm water attenuation tanks preventing downstream flooding during periods of heavy rainfall.
The HYDRO-VALVE controls fluid flow by hydraulic effect without requiring moving parts.
At low flow rates, the Hydro-Valve complex design allows water to enter through the inlet passing to the the outlet unrestricted.
However, at high flow rates water enters through the inlet with enough energy to create a vortex in the chamber.
This vortex controls flow to the specified discharge rate.
The Hydro-Valve unit is attached to the inside of a standard 1200mm (diameter) manhole with six steel anchors (supplied).
Available to suit rectangular manholes upon request.
The outlet invert is marked on the unit for alignment.
The manual by-pass cord is installed vertically (bracket and screws are supplied)
Full installation drawings are supplied with Hydro-Valve.
Customised Specifications.
No external power source.
Self activating and Self Cleaning.
Minimal Maintenance.
The outlet opening is 3-6 times larger than conventional controls.
Reduce storage requirements by up to 30% compared to an orifice plate.
Ease of installation compared with conventional vortex valves.
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