We’re pleased to announce that our Protecta-Line barrier pipe system has retained its place in the “List of approved products for use in public water supply in the United Kingdom”, conforming to the requirements of Regulation 31 as published by the DWI (Drinking Water Inspectorate), until October 31, 2029.
This approval confirms that Protecta-Line continues to meet the highest regulatory standards for safe and reliable potable water supply in the UK.
With recent pledges by the Government to accelerate housing development on brownfield sites, there’s an increasing need for reliable infrastructure solutions designed to safeguard water quality in areas with potential soil contaminants.
For almost three decades, Protecta-Line has pioneered the safe transportation of drinking water in challenging environments, serving water utilities, contractors and housebuilders across the UK.
We have continuously adapted the range to meet evolving industry demands and support a broader range of applications. For instance, we now offer Protecta-Line in sizes up to 630mm, as well as innovative fittings, such as a complete range of self-tapping ferrules with stainless steel straps.
Why Protecta-Line is the preferred solution for transporting drinking water through contaminated land
- Safe by design: with a robust barrier system that prevents contaminants in the soil from permeating through the pipe wall.
- Certified for rigorous standards: fully DWI-approved under Regulation 31 and kitemarked to BS 8588 standards.
- Adaptable to any project size: available in a wide range of sizes, from 25mm to 630mm, to meet the needs of projects from small-scale installations to large municipal infrastructure.
- Manufactured with pride in the UK: to meet the needs of the market for more than 25 years.
Looking to the future
We remain committed to driving innovation in water infrastructure to meet the evolving needs of the industry. As investment in brownfield redevelopment increases, we’re focused on delivering solutions that exceed regulatory requirements and support urban regeneration.
Frequently asked questions about DWI-approved barrier pipes
What is Regulation 31?
Regulation 31 of The Water Supply (Water Quality) Regulations 2016 (as amended)1 implements Article 10 of the Council of the European Union Drinking Water Directive (DWD) in England and Wales for all chemicals and construction products used by water undertakers, from the source of the water, up to the point of delivery to the consumer’s building. It sets out how approvals can be given to such construction products and materials that do not prejudice water quality and consumer safety.
What is the DWI?
The Drinking Water Inspectorate (DWI) was formed in 1990 to provide independent reassurance that water supplies in England and Wales are safe and drinking water quality is acceptable to consumers.
What is a DWI-approved barrier pipe?
A DWI-approved barrier pipe, such as Protecta-Line, is a pipe system certified by the DWI (Drinking Water Inspectorate) to meet Regulation 31 standards for safely transporting potable water, even through contaminated land.
Does Regulation 31 certification need to be renewed?
Yes, products listed under Regulation 31 undergo periodic review to ensure continued compliance with the latest standards. Protecta-Line’s certification has recently been extended until October 31, 2029, demonstrating its commitment to maintaining these essential safety and quality requirements.
Why choose a Regulation 31-compliant pipe system for potable water?
Choosing a Regulation 31-compliant system ensures that your project meets stringent safety standards for water quality and avoids contamination risks, providing reliable, safe drinking water to communities.
Where can I use DWI-approved Protecta-Line pipes?
Protecta-Line is suitable for a wide range of projects, from residential and commercial to large municipal installations, especially in areas where the land may be contaminated.
Got a question?
Product Manager