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Stormwater Attenuation Accessories
These stormwater attenuation accessories allow further functionality to SuDS systems.
In this section you will find:
- Upstream screening and debris chambers
- attenuation flow control and backflow prevention devices
Outlet Flap Valve, Anti Flood Non-Return Valve
£69.00
Please note there are two versions of this valve, this is the outlet flap valve suitable for placing onto the end of plain ended pipe. The Inline flap valve version can be found here. Non Return Valves for drainage and water pipes, available in two sizes 110mm and 160mm. Slips onto the end of pipes. Effective Anti-flood Valve and Rat Barrier Dr...
SuDS Rainwater Attenuation Sizing Design Calculation
£120.00
If you or your client are at the pre planning stage, have a planning condition or need to satisfy building control you may require an Attenuation tank or Soakaway sizing design to demonstrate the attenuation volume required. The output is a pdf document which provides the attenuation volume required. What we require: Address and Postcode o...
FlowBrake SuDS Attenuation Tank Orifice Plate
£29.00
*Bespoke Orifice, diameter to be supplied upon order. Lead time 2 weeks. Non-returnable* As the name suggests the FlowBrake Orifice allows a simple orifice control and is suitable in situations where a varying a peak discharge condition is permitted. The orifice plate is fabricated from PVC and the orifice designed and fabricated in accordance w...
Silt Guard 300 Series Silt Trap for 110 and 160mm Pipework with Filter Bucket and Access Cover
Silt Guard 300 Series Silt Trap for 110 and 160mm Pipework with Filter Bucket and Access Cover
£279.00
The Silt Guard range has been designed for the catchment and removal of silt and debris from the run off from impermeable and hard standing surface areas, such as: roofs, path and driveways, patios, car parks, roads and highways. Installation of a Silt Guard as part of a SuDS design, will provide effective primary treatment for the surface wate...
In line Back Flow Prevention Non Return Valve 110mm, 160mm, 200mm
£69.00
Please note there are two versions of this valve, this is the outlet flap valve suitable for placing onto the end of plain ended pipe. The Outlet flap valve version can be found here. Inline Enclosed Back Flow Prevention Non Return Valve Backflow Prevention Valves (non-return valves) effectively secure any rooms located on the lower floors ag...
Soakaway test (BRE 365) Greater Manchester
£300.00
In order to design a soakaway the ground conditions must be known. Specifically, the infiltration rate must be determined using the method defined in the Soakaway test (BRE 365). This measure is used to determine the volume and plan area of the soakaway. The Infiltration Test will be performed by a Chartered Civil Engineer. This service is ava...
300mm Chamber Extension Riser
£29.00
This silt trap extension riser is designed to be used with our SS300 and SS500 series of silt traps and also OFCP300/1 series of our Oriflo. It will increase the height of the silt trap chamber or Oriflo by ~ 135mm and a lid can be placed on top. Includes the rubber seal. Please note - This is not suitable for the SS300HD version
Soakaway Sizing Design Calculation BRE 365/CIRIA 3D
£120.00
If you or your client are at the pre planning stage, have a planning condition or need to satisfy building control you may require a Soakaway sizing design to demonstrate the soakaway volume required. The output is a pdf document which provides the soakaway dimensions required. The calculation will be performed as per CIRIA 3D method as stand...
Accesso Chamber Access Covers
£69.00
Accesso Inspection Chamber Access Covers available with the following options: Size (mm) Shape (Circular/square) Loading Capacity (Tonnes) Product Code Product Description Description Additional Comments 300ACC Access Coverø300mm Circular Cover35kN Pedestrian Loading ø300mm Access Cover, Circle (35kN Pedestrian Loading) Frame lo...
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...
GRAF shaft chamber extension piece
£269.00
GRAF chamber extension piece, 600mm diameter available in: 300mm Height (achieves ~ 265mm lift. 1210mm Height 1210mm Height with 200mm pipe fitting high level overflow stub. These riser sections are suitable for: Platin, Carat and Sustainable Urban Drainage systems. Heights given are nominal reference heights and will not provide the co...
Oriflo Flow Control 300mm ø Chamber P Series
£409.00
**Flow rate and head must be provided via email upon purchase** The Oriflo range is a series of Orifice Flow Control Chambers accommodating a range of flow rates 300mm diameter, pre-assembled flow control chamber, delivered ready to install The P models are classed as unprotected orifice chambers and are specifically designed for installation do...
GRAF telescopic shaft cover access lid
£219.00
GRAF Cast Iron Telescopic Dome Shaft. Suitable for use with the GRAF Carat S and Platin tanks. The 600mm diameter pedestrian lid is available in both mini and maxi options which is a reference to the rise available. Dimensions are nominal reference and will not provide the corresponding rise due to the overlap required. Please email technical ...
40mm internal overflow tank connection kit
£9.99
A neat way to an install an overflow is to incorporate the overflow internal to the water butt. This kit allows a tank connector to be fitted inside a water butt allowing the excess water to flow Kit 1 : Tank Connector +gasket Y branch Blanking plug Requires vertical piece of 40mm push fit pipe to suit water butt Kit 2 : As Kit 1 with the add...