Serving construction for 21 years

Real Innovation for sustainable water management

Innovative Products

Using our experience to design products to satisfy your needs, to make your job easier

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

PVOD Rainwater Diffuser Units

PVOD Diffuser units are a recognised method for efficient diffusion of collected rainwater run-off into and out of the voided sub-base aggregate layers beneath permeable pavements. Diffuser Units are fully compliant with BS7533-13:2009 and arrive to site ready to install with no-site assembly required. They are simply joined to standard underground push-fit pipework. Pretreatment for silt / debris removal is required. This can either be a WASP silt catchpit or a Raintaina filter chamber.

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

Efficient Diffusion

  • Recognised method for efficient diffusion of rainwater into and out of the voided sub-base aggregate

  • Standard unit sizes for simple design integration

The Original

  • Strong and lightweight

  • fully compliant with BS7533-13:2009

  • Special project-specific sizes available upon request

Easy to Install

  • One-piece installation

  • Supplied with integral socket connection

  • Suit stardard uPVC pipe sizes

SURFACE WATER MANAGEMENT

PVOD Rainwater Diffuser Units

Download the latest PVOD Rainwater Diffuser Unit brochure here

permavoid diffuser units
permavoid diffuser units

Product Information

PVOD05101 Diffuser Unit 710x710x150

The Permavoid Diffuser Unit 710x710x150; 110mm ø Socket is used for the efficient diffusion of collected surface water runoff in or out of permeable aggregates. This technique can be utilised in junction with both pervious and impervious surfaces, in
particular where there are high groundwater levels, contamination or shallow rock layers. Each diffuser module is complete with a preformed 110mm Ø push fit socket for easy connection to standard PVC-u underground pipework. All diffusers are encapsulated by a 2mm mesh which avoids debris clogging and provides an excellent open surface area for surface water runoff to easily flow into the surrounding aggregate.

Each diffuser unit is suitable for 100m² catchments or 3 l/s discharge

DOWNLOAD PVOD05101 DATASHEET

PVOD05202 Diffuser Unit 2130x355x300

The Permavoid Diffuser Unit 2130x355x300; 160mm ø Socket is used for the efficient diffusion of collected surface water runoff in or out of permeable aggregates. This technique can be utilised in junction with both pervious and impervious surfaces in particular where there are high groundwater levels, contamination or shallow rock layers. Each diffuser module is complete with a preformed 160mm Ø push fit socket for easy connection to standard PVC-u underground pipework. All diffusers are encapsulated by a 2mm mesh which avoids debris clogging and provides an excellent open surface area for surface water runoff to easily flow into the surrounding aggregate.

Each diffuser unit is suitable for 250m² catchments or 6.3 l/s discharge

DOWNLOAD PVOD05202 DATASHEET

WASP04 Series Catchpit Chambers

The WASP04 series catchpit chambers are a 315mm diameter (OD) Catchpit Chambers in standard configurations for a range of applications such as, upstream catchpit to the permavoid diffuser unit, outlet chamber from raingardens or as a small Ø filter chamber. Depths upto 2m to suit individual site requirements with pipe connection spigots either 110mmØ or 160mmØ.

CAD Details

get in touch

Sel Environmental Ltd

Canal House, Bonsall Street, Blackburn, BB2 4DD
01254 589987 or sales@selenvironmental.com