A barrier pipe is a robust type of water pipe commonly used instead of MDPE (medium density polyethylene) pipes in areas with contaminated soil. Unlike MDPE, barrier pipes offer enhanced protection against contaminants seeping into the water supply. They are specifically engineered to shield the water flowing through them from environmental pollutants, making them ideal for challenging conditions. While they tend to be more expensive due to their complex manufacturing process, there are several types available, including ductile iron, plastic-coated copper, and multi-layer pipes featuring an inner metallic layer.
Key Takeaways:
- Barrier Pipe contains a metal lining that prevents soil contaminants from infiltrating the water stream.
- Both Puriton and Protecta-line barrier pipes meet British Standards (BS 8588).
Barrier pipes are particularly popular for projects on brownfield sites—areas previously utilized for industrial purposes. This is because they prevent harmful substances like heavy metals or hydrocarbons from entering the water supply. These pipes are essential where the soil might contain residues from past industrial activities.
Ductile iron barrier pipes are primarily used for potable water distribution, while plastic-coated copper pipes are often chosen for bathroom plumbing tasks. Multi-layer pipes with an internal metallic layer are versatile and frequently employed in general water systems and drinking water applications. The most common type involves a metal core encased in polyethylene, providing excellent protection for drinking water.
When selecting a barrier pipe, understanding the Standard Dimension Ratio (SDR) is crucial. Lower SDR values indicate thicker walls, offering greater stability but potentially less flexibility compared to higher SDRs. SDR 11 is typically sturdier than SDR 17, but SDR 17 excels in ring deflection, meaning it can handle significant external pressure without deforming.
Brownfield sites often carry risks due to past industrial usage, such as exposure to lead, heavy metals, oils, solvents, asbestos, and even radioactive materials. Before laying barrier pipes, thorough assessments should be conducted to identify potential hazards. Consulting historical records of the site's usage is standard practice to determine the appropriate pipe specifications.
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Shop Barrier Pipe:
Our selection includes Blue Barrier Pipe Coils, available in various sizes and priced competitively. From £433.33 excl. VAT to £520 incl. VAT, these coils are built to last and provide reliable protection for your water systems. Each coil offers durability and flexibility, making them a smart investment for long-term projects.
Remember, choosing the right barrier pipe ensures safety, compliance, and peace of mind for both residential and commercial developments. Let us help you select the perfect solution tailored to your needs!
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