Ridgisewer is a high-strength polypropylene structured wall pipe system designed for gravity sewer applications. Available in diameters ranging from 400mm to 900mm, it offers a tough yet lightweight solution that simplifies handling and installation. Featuring integral sockets, Ridgisewer enables rapid assembly and secure, leak-tight joints, making it an ideal choice for efficient, long-lasting sewer infrastructure.
The widest product choice, for the best possible solution for your project
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Adoptable Longevity
Ridgisewer includes a comprehensive selection of pipes, couplings, seals, bends and junctions to suit diverse sewer layouts and project needs. Built to last, our adoptable system is designed for long term durability, with a 50 year design life and resistance to chemical, impact, abrasion and gas corrosion, as well as being able to withstand minor shifts in ground movement without compromising its structural integrity.
Sewer Sector Guidance Explained
Supporting the Masterplan
Ridgisewer can be used seamlessly alongside Polysewer, our smaller diameter adoptable pipe, as well as other products such as Ridgistorm-XL or Polystorm for a complete solution to conveyance and attenuation for any project.
Our in-house team of technical experts can support and provide recommendations to find the ideal solution to your water management challenges.
Certified Quality
Ridgisewer is BBA-certified and meets the requirements of BS EN 13476 and Sewers for Adoption, ensuring compliance and peace of mind. The range is also BSI Kitemarked and fully compliant with WIS 4-35-01, offering proven performance and reliability for adoptable sewer applications. Other benefits include:
Choice Of Stiffness Classification
Manufactured to both SN4 and SN8 stiffness classification, Ridgisewer offers a solution to suit varying ground conditions and installation requirements.
Proven Performance
With decades of successful installations across the UK, Ridgisewer has demonstrated consistent reliability in diverse ground conditions and project scales.
Comprehensive System Compatibility
Fully compatible with Polypipe’s range of chambers, fittings, and access solutions, Ridgisewer integrates seamlessly into complete drainage systems.
Optimising Site Safety with Ridgisewer Systems
Ridgisewer offers a modern alternative to traditional clay or concrete systems, combining strength with flexibility. Its lightweight design simplifies handling and installation, reducing time, labour costs, and manual strain contributing to improved health and safety on site. Unlike rigid materials, Ridgisewer resists cracking and ground movement, ensuring long-term durability. With superior hydraulic performance and corrosion resistance, it’s a reliable, cost-effective solution for today’s drainage infrastructure.
Frequently Asked Questions
Yes. Ridgisewer is designed to integrate with other Polypipe systems using adaptors, reducers, and saddles. For example, Ridgisewer saddles allow for secure connections to 160mm EN 1401-1 pipes, and installation stubs assist with safe jointing.
- 400–600mm diameters: SN8 (high stiffness). These pipes are manufactured from polypropylene with a terracotta outer and a blue inner.
- 750–900mm diameters: SN4. These pipes are manufactured from polyethylyne with a black outer, blue inner and a terracotta band.
The Ridgisewer range allows for flexibility in specifying the right pipe for different ground conditions and load requirements.
Yes. Ridgisewer is fully compliant with BS EN 13476-1 and WIS 4-35-01 v2, and is both BSI Kitemarked and BBA approved, making it suitable for adoptable and non-adoptable gravity sewer applications.
