100mm Cast Iron Drainage

Our 100mm Halifax cast iron drainage range is designed for underground drainage applications, including standard foul and stormwater systems. BS EN 877 compliant, it offers exceptional strength and long-term reliability. Available with push-fit or mechanical joint connections and a durable grey epoxy coating, it's a low-maintenance solution for commercial and civil engineering projects, even in aggressive soil conditions.

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Related resources
Halifax Cast Iron Technical Guide Download PDF
Drainfast Product Catalogue Issue 40
Vision Drainage Specification Manual Download PDF

Why Choose Drainfast for 100mm Cast Iron Drainage?

Drainfast supplies a comprehensive range of 100mm Halifax cast iron drainage products, including pipes, bends, branches, access fittings and couplings for complete underground drainage installations. Whether you're working on a commercial development or a public sector project, our experienced team can help you specify the right components. Explore our full range of cast iron drainage products.

  • Extensive stock available for fast nationwide delivery
  • Technical support from experienced drainage specialists
  • High-quality Halifax cast iron drainage systems
  • Trusted by commercial contractors and groundworkers
  • Family-owned, independent supplier established in 2003
  • Next-day delivery available on eligible orders placed before 5pm
  • Free material take off service

Frequently Asked Questions

What are the Benefits of 100mm Cast Iron Drainage?

100mm cast iron drainage offers outstanding durability and high mechanical strength, making it suitable for demanding underground drainage applications. The robust epoxy coating helps protect against corrosion, while BS EN 877 compliance provides confidence that the system meets recognised performance standards. Cast iron also offers excellent acoustic performance compared to many alternative drainage materials.

What Sizes are Available in 100mm Cast Iron Drainage Pipes?

The 100mm system includes a wide range of compatible pipes and fittings to accommodate different installation requirements. Alongside straight pipe lengths, you'll find bends, branches, access fittings, connectors and couplings, allowing complete underground drainage systems to be built using matching components. 

When Should You Choose 100mm Cast Iron Drainage Over Other Sizes?

100mm cast iron drainage is commonly specified for standard foul water and surface water drainage on commercial and industrial developments. It is often the preferred choice where strength, fire performance and long-term durability are priorities. Larger pipe sizes may be required for higher flow rates or larger drainage networks, while smaller systems are generally reserved for lower-capacity applications. 

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