Hydro-Brake Optimum® Design Tool

Step by Step Guide

Flow Control Design in Just 3 Simple Steps

Step 1: Enter Design Inputs

Step 2: Review Design Onscreen

Step 3: Receive Detailed Design Outputs Direct to your Email Inbox

Registration / Login

• On first use, you will be invited to Register and will be able to use the tool straight away

• On subsequent visits, log in using the User Name and Password supplied during Registration

If you forget your User Name or Password, contact the Design Tool Support Hotline on:

01275 337957

Before we get started…About the Hydraulic Response Characteristic Curve

The Hydraulic Response Characteristic Curve of the Hydro-Brake Optimum® is defined using 3 points:1. Flush-Flo™

The point at which a vortex begins to build within the unit.

2. Kick-Flo®

The point at which a stable vortex is formed and maintained

3. Design PointA point along the curve where the flow is controlled to a specified value at a known head.

Before we get started…About the Hydraulic Response Characteristic Curve

The Hydraulic Response Characteristic Curve of the Hydro-Brake Optimum® is defined using 3 points:1. Flush-Flo™

The point at which a vortex begins to build within the unit.

2. Kick-Flo®

The point at which a stable vortex is formed and maintained

3. Design PointA point along the curve where the flow is controlled to a specified value at a known head.

Note: The Design Point alone is not sufficient to define the curve. Many different units with different Flush-Flo™ and Kick-Flo® points can all achieve the same primary design point.

A word about tooltips

If you get stuck at any point, hold your mouse cursor over any icon for a short tip

Step 1) Enter Design Inputs

Design head is taken as the difference in elevation between the invert of the outlet pipe and the top water level (TWL) upstream.The maximum Design Head is 4m.

Des

ign

Hea

d

Primary Design Point: Design Head

Hydro-Brake® Optimum

Maximum Design TWL

Maximum Design TWL

Des

ign

Hea

d

Primary Design Point: Design Flow

The Design Flow should be set at the maximum permissible discharge rate from the catchment or sub-catchment. This will generally be specified by the authority responsible for the downstream receiving waterbody or sewer.The maximum Design Flow is 250 l/s.

Controlled Flow = Maximum permissible discharge rate = Design Flow

Customised Hydraulic Response: Objective

1. Minimise Storage Requirements (Default)Maximises the flow rate at the Flush-Flo® point and the head at the Kick-Flo™ point to pass forward as much flow as possible at all heads up to and including the head at the Design Point (Design Head) without exceeding the design flow.

There are three standard Objectives:

Customised Hydraulic Response: Objective

2. Minimise Blockage RiskMaximises the clearances through the unit to minimise the risk of any debris carried within the flow from becoming lodged in the unit.

There are three standard Objectives:

Customised Hydraulic Response: Objective

3. Future ProofAdds an adjustable inlet to the unit and sets this at close to its mid-point to allow the greatest possible flexibility for dealing with future changes in the system requirements.Typically, the Design Flow can be adjusted by 20% post installation.

Note:Modelling of the adjustment range is not currently supported. Contact us to obtain full details.

There are three standard Objectives:

Customised Hydraulic Response: Flush-Flo™

Flush-Flo™Alternatively to selecting a standard Objective, you can define the flow rate at which the vortex begins to form (Flush-Flo™). This can be set at less than, equal to or greater than the Design Flow.

Note:Leaving the Flush-Flo™ input box empty will automatically set the Flush-Flo™ equal to the Design Flow

Mechanical Build Options:Mounting Style

Select your desired standard mounting style:

Note: Some mounting styles may not be available for particular design inputs. Contact us for bespoke mounting solutions or off-site solutions.

Mounting Plate(Flat or Curved)

Push-Fit Spigot Mounting Lugs (Default)

Mechanical Build Options:Adjustable Inlet

Units can be supplied with or without an adjustable inlet. Flow rates can typically be adjusted by 20% post installation.

Note: Future Proof Objective requires an adjustable inlet

Step 2) Review Design Outputs:Hydraulic Characteristics

Review Design Outputs:Key Dimensions

Site Specific Design (SSD)

For larger units, non standard chamber constructions may be required.Under these conditions, the Design Tool will not automatically generate all of installation dimensions.Contact us for advice on chamber construction.

Step 3) Obtain Design Files

Your selected design files will be sent to the email address provided during registration.Note: Add HydroBrakeOptimumDesignTool@hydro-int.com to your safe senders list to prevent this email going to your spam or junk folder

Available Output Files

Hydraulic Characteristic Curve

Dimensioned Drawing Hydraulic Modelling Data

To suit commercially available hydraulic software (see next slide for currently supported packages)

Sam

ple

Sam

ple

Sam

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Hydraulic Modelling Data

Micro Drainage Compatible (.csv)

Data in 0.1m or 0.2m Head Increments (.csv)

Generic Data (.csv)

• Micro Drainage 2014• WinDes 2013• WinDes w12

• WinDes w11 and earlier

110 lines of head / flow data in .csv format, suitable for viewing in Microsoft Excel (or similar).

After requesting design files, you can continue to use the Design Tool, which will generate your files in the background.Please do not log out or exit your browser until the Design File Email Request Acknowledgement is shown.

Design File Email Request Acknowledgement

Hydro-Brake Optimum® Design Tool

Try the tool for yourself – click on the image below to launch the tool:

Download the User Guide for further information:

Thank you

01275 337937Email: enquiries@hydro-int.com