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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: 15BPB-100C
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Linx Square
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Linx Square
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Linx Square
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Linx Square
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Discover the reliable and versatile JG Speedfit Polybutylene Pipe Coil 15mm - 100m in white, available in a 15mm size. This pipe is designed to provide exceptional performance and durability in various plumbing and heating applications.The John Guest Pb Pipe is offered in two options: PEX (cross-linked polyethylene) or Polybutylene. Both options feature an inner barrier that effectively prevents the ingress of atmospheric elements, ensuring the integrity and longevity of your plumbing system. This barrier adds an extra layer of protection, reducing the risk of corrosion and maintaining the quality of your water supply.Manufactured and Kitemarked to the rigorous British Standard BS7291: Parts 1, 2, and 3: Class S, the John Guest Pb Pipe guarantees compliance with industry standards. This certification ensures that the pipe meets the highest quality and safety requirements, giving you peace of mind and confidence in its performance.The lightweight and flexible nature of the John Guest Pb Pipe makes it particularly well-suited for underfloor heating installations. Its flexibility allows for easy routing and maneuvering, facilitating a smooth and efficient installation process. Whether you are working on a residential or commercial project, this pipe offers the flexibility and adaptability needed to accommodate different layouts and configurations.Minimum Bending RadiiFor Speedfit B-PEX Pipe is 175mmExpansion (PEX-Pipe)1% on the length between 20°C and 82°CInstallationPre-Screed System TestingTo ensure the pipework has been installed correctly prior to the screed being laid, it is essential that the system is checked and hydraulically wet tested.Testing should be carried out at 2 bar for 10 minutes and 10 bar for 10 minutes.This testing, combined with other relevant checks, should reveal installation problems and is regarded as good plumbing practice.Pressurisation During Screed Laying and CuringIn accordance with BS1264-4, the system should be left under pressure at a minimum of 6 bar for the duration of the laying and curing of the screed.Under NO circumstances should the underfloor heating System be used to quicken the screed drying process.System FlushingAs is usual practice for any plumbing installation, flushing of the system prior to the use of JG Speedfit is recommended to remove any contaminants/chemical residue from elsewhere in the system.