Innovative Products
Using our experience to design products to satisfy your needs, to make your job easier
Using our experience to design products to satisfy your needs, to make your job easier
High quality sustainable water management products designed and manufactured in the UK
We are committed to provide full technical support in line with current legislation & guidance
SEL were contacted by Severn Trent Water (STW) who wanted to discuss orifice flow control chambers to regulate flows from their rain gardens, which were retrofitted as part of the Mansfield Sustainable Flood Resilience Scheme to improve flood resilience through use of sustainable drainage techniques.
The rain gardens would connect to a combined sewer network so a non-return valve would also be required to prevent backflow, STW expressed a preference to use a Wastop NRV.
Normally this would mean two separate drainage chambers would be required but due to serious space limitations and a need to maximise attenuation within the rain gardens, STW asked if it was possible to combine them both into a single chamber. STW also wanted the orifice flow control and Wastop non-return valve to be removable for maintenance.
Please contact SEL if you would like further information regarding this chamber, product code WASP07202
Tel: 01254 589987 Email: sales@selenvironmental.com
Developed by experienced SuDS designers with practicality in mind
Tested in situ for over a decade
Satisfies National Standards as well as the SuDS Manual 2015
Simple installation
Minimal maintenance over the long term
Standard stock items, universal formats for flexible specification or bespoke designs available
Low-cost flow control devices for use throughout management trains
Performance easily verified by local authorities
Straightforward specification using established criteria
Passive operation with consistent
performance
Made to order using recyclable materials
Easy access for inspection, measurement or sampling
Integral lifting points as standard
Depths to suit project-specific requirements
Supplied with integral spigot connections
Made from High-density Polyethylene (HDPE)
No concrete surround required