MDPE Pipe

Medium Density Polyethylene (MDPE) pipe is a robust and reliable solution for water distribution, offering excellent resistance to shock, impact, and environmental stress cracking. Commonly used for both new installations and the replacement of outdated lead pipework, MDPE is non-toxic, durable, and microbiologically inert under standard conditions. Available in blue for below-ground potable mains water and black for above-ground general water applications, MDPE provides a safe, long-lasting infrastructure solution for residential, commercial, and industrial settings.

Application

  • Potable Water Distribution: Approved for mains water conveyance below ground (blue) and general water systems above ground (black).
  • Lead Pipe Replacement: Safe, non-toxic alternative for older domestic plumbing systems.
  • Agricultural & Irrigation Systems: Resists chemical and microbial attack in rural installations.
  • Industrial Water Conveyance: Suitable for transporting non-aggressive fluids in controlled environments.
  • Geothermal Piping Systems: Recognised use in ground source heat pump applications (as per MSDS documentation).

Technical Specification

  • Colour Options:
  • Blue (potable water below ground)
  • Black (general water above ground with UV resistance)
  • Operating Temperature: Typically 5°C to 40°C for continuous use
  • Toxicity: Non-toxic; does not support microbiological growth
  • Odour/Taste: Odourless and tasteless
  • Density: 0.9 – 1.0 g/cm³
  • Melting Point: 110°C – 140°C
  • Ignition Temperature: >320°C
  • Standards Compliance:
  • Manufactured in line with national water authority specifications
  • Suitable for use under UK health and safety regulations
  • Resistance Properties: Excellent shock and impact resistance, High resistance to environmental stress cracking, Resistant to algae, bacteria, and fungi under normal conditions

Installation Overview

  • Storage & Handling: Store away from direct contact with oxidising agents. Avoid excessive heat and direct sunlight for extended periods (particularly for blue pipe).
  • Pipe Cutting: Cut with suitable plastic pipe cutters or fine-toothed saws. Ensure ends are clean and square.
  • Jointing Method: Typically joined using compression fittings or electrofusion welding (specialist tooling required). Ensure pipes are free from dust and debris before jointing.
  • Safety Considerations: Wear gloves and eye protection during cutting or jointing. Use dust masks if fine particles are produced during cutting. Provide adequate ventilation when using heat-based jointing methods.
  • Commissioning: After installation, flush the system and pressure test according to site requirements and local regulations. Confirm full sealing of all joints before final backfilling.

IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.

 

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