Innovative Products
Using our experience to design products to satisfy your needs, to make your job easier
Serving construction for 21 years
Real Innovation for sustainable water management
Made in the UK
High quality sustainable water management products designed and manufactured in the UK
Technical Support
We are committed to provide full technical support in line with current legislation & guidance
WASP Orifice Flow Control Chambers
WASP orifice flow control chambers are bespoke prefabricated, watertight, structured wall chambers, manufactured to suit project-specific requirements. They are supplied with a pre-fitted orifice flow control device and a filter screen with the option to incorporate a weir wall bypass. The Health and Safety benefits of using WASP chambers become apparent during handling and installation, due to their strong, lightweight construction and integral lifting points. In addition, off-site fabrication ensures uncompromised, high quality products being delivered to site ready-to-install, reducing installation time and costs.
Please contact SEL if you would like further information regarding any of the products below
Tel: 01254 589987 Email: sales@selenvironmental.com
surface water management
Key Benefits
Comply with
Sewers for Adoption (SfA8) 8th edition.
Suitable for Adoptable and Non-Adoptable applications.
Building Regulations - Part H1.
New Design & Construction Guidance – Section C7.1.1 Sediment Management.
Generally in accordance with BS EN 13598-2 but our chambers have a 300mm sump rather than a flow channel.
Prefabricated
Chambers are manufactured from adoptable standard pipework.
Easy access for collection and disposal of silt
Watertight, structured wall construction
One-piece installation
Strong and lightweight
Multiple inlet and outlet options
Ø1200+ Fitted step rungs to BS EN 13101
Easy to Install
Integral lifting points as standard
Depths to suit project-specific requirements
Supplied with integral spigot connections
Made from High-density Polyethylene (HDPE)
Wide range of diameters available
No concrete surround required
Product Information
WASP06250WW Series 1200mm Ø Chambers
The WASP06200WW series orifice flow control chambers are a 1200mm diameter (ID) Catchpit Chamber prefabricated to suit individual site requirements to a maximum height of 2500mm (including sump). Pipe connection spigots ranging from 110mmØ to 450mmØ (OD) and 500mmØ (ID) are positioned to suit the manhole schedule. These chambers are supplied with a pre-fitted stainless steel orifice flow control device and filter screen as standard.
WASP06300WW Series 1350mm Ø Chambers
The WASP06300WW series orifice flow control chambers are a 1350mm diameter (ID) Catchpit Chamber prefabricated to suit individual site requirements to a maximum height of 2500mm (including sump). Pipe connection spigots ranging from 110mmØ to 450mmØ (OD) and 500mmØ (ID) are positioned to suit the manhole schedule. These chambers are supplied with a pre-fitted stainless steel orifice flow control device and filter screen as standard.
WASP06350WW Series 1500mm Ø Chambers
The WASP06350WW series orifice flow control chambers are a 1500mm diameter (ID) Catchpit Chamber prefabricated to suit individual site requirements to a maximum height of 2500mm (including sump). Pipe connection spigots ranging from 110mmØ to 450mmØ (OD) and 500mmØ to 600mmØ (ID) are positioned to suit the manhole schedule. These chambers are supplied with a pre-fitted stainless steel orifice flow control device and filter screen as standard.
WASP06400WW Series 1800mm Ø Chambers
The WASP06400WW series orifice flow control chambers are a 1800mm diameter (ID) Catchpit Chamber prefabricated to suit individual site requirements to a maximum height of 2500mm (including sump). Pipe connection spigots ranging from 110mmØ to 450mmØ (OD) and 500mmØ to 900mmØ (ID) are positioned to suit the manhole schedule. These chambers are supplied with a pre-fitted stainless steel orifice flow control device and filter screen as standard.
