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Sold By The m²
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Free Samples
See the finish before you commit
Trade Account
Trade prices on every range
Expert Advice
Speak to our team · 020 4634 2203
Free Delivery
On orders over £300
Sold By The m²
Calculator on every tile and floor
Klarna & PayPal
Spread the cost, subject to status

Trade Prices
Always trade prices, never retail markup.
UK Delivery
£50 flat rate • up to 20 business days.
FENSA Fitting
Professional install available.
by Linx Square
SKU: 169743
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Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT

Linx Square
inc. VAT
Plumbright Polybutylene Barrier Pipe The Plumbright Polybutylene Barrier Pipe is a flexible plumbing and heating pipe designed for use in central heating and wet underfloor heating systems. Manufactured from high-quality polybutylene with an integrated oxygen barrier layer, this pipe helps protect heating systems against internal corrosion while providing reliable long-term performance. Its flexible construction makes installation quicker and easier, particularly when routing through joists, floor voids, and confined spaces. Suitable for both professional installers and DIY projects, this barrier pipe is ideal for modern plumbing and underfloor heating applications where durability, efficiency, and ease of handling are essential. Key Features and Benefits Flexible polybutylene construction for easier routing and installation Integrated oxygen barrier helps reduce corrosion within heating systems Suitable for central heating and wet underfloor heating applications Compatible with push-fit plumbing systems WRAS approved for trusted performance and compliance Lightweight and easy to handle on-site Helps maintain efficient system operation over time Suitable for concealed pipework installations within floors and walls Designed for reliable hot and cold water applications Suitable Applications and Compatibility This plumbing and heating barrier pipe is suitable for a wide range of domestic and light commercial applications, including: Wet underfloor heating systems Microbore central heating systems Hot and cold water services Renovation and new-build installations Floor, wall, and ceiling pipe routing Push-fit plumbing systems and compatible fittings The flexible design allows installers to create smoother pipe runs with fewer joints, helping to reduce installation time while improving system reliability. Role In Underfloor Heating Barrier pipe plays a vital role in maintaining the efficiency and lifespan of wet underfloor heating systems. The integrated oxygen barrier helps prevent oxygen ingress into the heating circuit, reducing the risk of sludge build-up, corrosion, and premature wear of components such as pumps, manifolds, and valves. The flexibility of polybutylene pipe also makes it ideal for underfloor heating layouts, allowing for quicker installation with minimal stress on fittings and connections. This helps deliver consistent heat distribution and dependable long-term performance. Guidance Always ensure the pipe is installed in accordance with current plumbing regulations and manufacturer guidance. Use compatible push-fit or compression fittings designed for polybutylene barrier pipe systems. Pressure testing is recommended before final floor finishes or coverings are applied. For wet underfloor heating installations, ensure suitable insulation and pipe spacing are used to maximise heat output and system efficiency. Technical Overview Manufactured from durable polybutylene material Integrated oxygen barrier protection Suitable for hot and cold water systems Compatible with push-fit plumbing fittings WRAS approved Manufactured to BS7291-2 standards Designed for central heating and wet underfloor heating applications :