Hepworth

Tel +44 (0)1709 856300, www.hepworth.co.uk
Wavin Registered Office, Hazlehead, Crow Edge, Sheffield, South Yorkshire, S36 4HG

Technical sheet

®
 Registered Trademark
Drainage systems in clay and plastics
Wavin is a leading manufacturer and supplier of drainage solutions in the UK. Its position as a leading multi-material drainage 
solutions provider ensures that the right products can be supplied in either clay or plastics to meet every drainage requirement. 
Systems from the Hepworth Clay, OSMA and Intesio brands cover house drainage, sewers for surface and foul water 
applications, and stormwater solutions.
Hepworth clay drainage
Introduction  Wavin offers a 
comprehensive range of clay 
drainage products under the 
Hepworth clay brand, suitable for all 
drainage applications. All sealing 
rings are EPDM for increased 
chemical resistance. 
Authority  The systems comply with 
all the relevant clauses of BS EN 295 
and BS 65. Where appropriate the 
products also comply with BS EN 124.
DESCRIPTION
SuperSleve HouseDrain 100 mm
is a complete and integrated 
drainage system of 100 mm pipes 
and fittings designed specifically for 
domestic and adoptable installations, 
but equally suitable for commercial 
and industrial developments.
SuperSleve 150 - 300 mm is a  
complete and integrated drainage 
system of 150, 225 and 300 mm 
pipes, fittings and accessories for 
adoptable and housing developments, 
as well as commercial and industrial 
projects.
HepSeal 400 - 600 mm is a spigot 
and socket drainage system utilising 
elastomeric seals.
Other products include:
-  HepLine 100 - 450 mm subsoil    
  drainage system 
-  LandDrain 75 - 225 mm subsoil   
  drainage range 
-  HepDuct 100 - 225 mm cable    
 conduits 
- Gullies 
-  Drainage metalwork 
-  Flexible couplings
- Accessories
OSMA plastics drainage
Introduction  Wavin offers a 
comprehensive range of plastic 
drainage systems under the OSMA 
brand, suitable for most drainage 
and sewer applications. 
All systems are manufactured from 
PVC-U and polypropylene. All 
elastomeric seals are manufactured 
from synthetic rubber.
Authority  The systems comply with 
all the relevant clauses of  
BS EN 681-1 and BS EN 1401-1.
DESCRIPTION
OsmaDrain 82 - 160 mm
is a complete and integrated 
drainage system of pipes and fittings 
designed specifically for domestic 
installations but equally suitable for 
commercial and industrial 
developments.
Osma UltraRib 150 - 300 mm
is a complete and integrated 
drainage system designed for 
commercial, industrial, highway and 
sewage installations.
Osma TwinWall 100 - 600 mm
is specifically designed to handle 
the collection and disposal of 
surface and sub-surface water. 
Manufactured from either 
polyethylene or polypropylene, the 
system is available in diameters 
ranging from 100 mm up to 600 mm. 
A comprehensive range of fittings 
are available in all sizes.
Top: Hepworth clay drainage
Bottom: OSMA plastic drainage
Wavin
Registered office:
Hazlehead
Crow Edge
Sheffield
S36 4HG
Tel:  +44 (0)1249 766600
Fax: +44 (0)1249 443286
Email: info@wavin.co.uk
Literature Service
Email: 
literature@wavin.co.uk
Technical Advisory Service
Tel:
  +44 (0)844 856 5165
Fax: +44 (0)844 856 5166
Email:  
technical.design@wavin.co.uk
Website: www.wavin.co.uk
rps no: 27265
Wavin
Intesio AquaCell
®
 systems
AquaCell systems are a fully tried 
and tested modular technique for 
managing excessive rainfall. Units 
are assembled to create an 
underground structure as either 
temporary storage tank or soakaway.
There are 3 types of unit:
AquaCell Plus for extra deep 
installations and/or inspectability.
AquaCell Core for trafficked 
locations.
AquaCell Eco for landscaped and 
non-trafficked locations.
For quick, versatile assembly, the 
lightweight polypropylene high void 
units are securely linked together using 
special clips and shear connectors.
They can be assembled quickly on 
site into whatever configuration suits 
each specific location.
The AquaCell systems also allow 
'brickbonding', which can give extra 
stability, without the need for 
additional connector pieces.
The complete assembly is wrapped 
in either geotextile sheet or a 
geomembrane. For pervious soils, 
the geotextile option allows 
infiltration of stormwater into the 
surrounding ground. For impervious 
ground (e.g. clay) or where 
infiltration is not desirable, the 
geomembrane holds stormwater in 
temporary storage until local 
drainage flows can accept it for 
normal disposal.
AquaCell systems contribute the 
following benefits:
·  Significantly reduced flooding risk
·  Controlled, reduced-volume
 
release of stormwater into  
 
 
existing sewer systems or  
 
 watercourses
·  Recharging of local groundwater
 
(if infiltration/soakaway application)
·  Aerobic purification to improve  
 
water run-off quality
·  Sustainable, cost effective
 
management of the water
environment
The proven qualities and performance 
of AquaCell systems not only 
support the achievement of SUDS, 
they can also help reinforce and 
enhance planning applications, and 
enable development to proceed.
Intesio HD-PE channel drain
As part of the Intesio water 
management solutions range, Wavin 
have introduced an innovative range 
of channels, manufactured from 
recycled HDPE (High Density 
Polyethylene).
Available in three ranges, SKIP, VIP 
and WING, the Intesio Channel 
Drainage System can be used with 
a variety of gratings to suit your 
application and loading requirements.
The system is both lightweight and 
durable and offers faster installation 
on site. The ranges have been 
independently certified in 
accordance with EN 1433.
Intesio channel drainage offers a 
solution to surface water 
transportation for either disposal or 
reuse, and can be used in 
conjunction with other products in 
the Intesio range to create a 
complete water management 
solution.
Intesio large diameter pipes
Weholite is a range of large 
diameter gravity/low pressure 
structural wall pipes manufactured 
from a special HDPE (High Density 
Polyethylene) resin. Weholite pipe 
represents the latest advances in 
both material and manufacturing 
technology. It's special structure can 
offer a range of pipe sizes and ring 
stiffnesses, depending on the 
requirement. The lightweight yet 
robust pipes can be used in various 
applications. Weholite pipes can be 
used in conjunction with the 
AquaCell modular system to provide 
stormwater attenuation systems for a 
wide range of civil, commercial, 
industrial and housing projects.
Intesio oil separation systems
Due to the special modular nature of 
the Intesio oil separation system, 
the oil separation chamber can be 
designed/installed in such a way as 
to be fully compliant with the 
requirements of the Environment 
Agency's PPG3 and European 
Standard BS EN 858-1 for both 'Full 
Retention' and 'By-Pass' separators.

Contact details

Wavin Registered Office,
Hazlehead,
Crow Edge,
Sheffield,
South Yorkshire, S36 4HG
Tel +44 (0)1709 856300
Fax +44 (0)1709 856301

Alternative contacts

Technical Advice
Tel +44 (0)844 856 5165
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