What is a drainage Hydrobrake?
Manage low, moderate and high flows to deliver low-impact drainage from single sites to large networks. The Hydro-Brake® Optimum vortex flow control provides customized water quantity management for stormwater, foul or combined water across a wide range of flows and for a variety of applications.
How does a hydro brake work?
How does the Hydro-Brake® prevent flooding? Under regular conditions, water passes through the Hydro-Brake® unrestricted and continues downstream at normal levels. At times of high flow e.g. during a rainstorm, the structure’s internal geometry harnesses the natural energy of the river flow by creating a vortex effect.
What is a vortex flow control?
A Vortex Flow Control System is a self-activating device based on the principle of vortex hydrodynamics – it uses hydraulic effect without the need for moving parts or power to control the flow of stormwater. When the device is subjected to sufficiently high upstream water levels, a vortex is induced in the flow.
How does a flow control chamber work?
As flow rate increases water enters through the inlet with enough energy to create a vortex in the vortex chamber which results in a considerable pressure drop between the inlet and the outlet restricting the flow to the allowable discharge.
What is a flow control manhole?
What are Flow Controls? A typical application of these valves is to control the flow from storm water attenuation/infiltration tanks preventing downstream flooding during periods of heavy rainfall. The valve controls fluid flow by hydraulic effect without requiring moving parts.
What is a flow control device?
The flow control device is designed with an integral orifice to give a predetermined optimum flow rate and air intake to the interceptor. The orifice openings are related to the size and flow rating of the GCD.
How does a downstream Defender work?
Capture and retain sediment, oils and floatables from stormwater runoff over a wide range of flows in a small footprint. Downstream Defender® is an advanced hydrodynamic vortex separator that reliably captures and retains sediments, oil, trash and floatables from surface water runoff.
How does a vortex valve work?
How Does it Work? The design of the Vortex Valve produces a unique head/discharge relationship. The device self activates by utilizing the upstream hydraulic head. This phenomenon restricts and throttles flow through the device, creating a back pressure in the device immediately upstream of its discharge.
What does an attenuation tank do?
A stormwater attenuation tank is designed to collect and store excess surface water run-off from a large storm event. Large diameter pipe systems, either plastic or steel, Pre-cast Concrete Box Culverts, concrete tanks and plastic tanks, can all be used to create large underground stormwater holding tanks.