Hargreaves Halifax HD8001 200mm Cast Iron Grey Double Spigot Drain Pipe 3m

The Halifax HD8001 belongs to the Halifax Drain range from Hargreaves Foundry: a 200mm double spigot pipe for buried below ground drainage and wastewater systems, jointed using a separate coupling rather than a traditional spigot and socket.

Material and coating

• Casting - Grey cast iron construction to BS EN 877, finished with a 2-pack epoxy coating averaging 150 microns or more.
• Internal coating - Minimum average 130 microns of yellow 2-pack epoxy, tested for chemical resistance between pH2 and pH12 and a 30 day waste water test at 23C.
• Length - Comes in 3 metre lengths as standard, and cuts down easily where a shorter run is needed.

Ground movement

Cast iron expands by around 0.01mm per metre for every degree Celsius rise in temperature, a coefficient close to that of concrete and steel. In practice this means a buried Halifax run moves very little relative to the ground around it, unlike some plastic systems where thermal expansion can be five to twenty times greater.

Installation

• Cutting - Pipes can be cut to length on site using a powered chop saw or disc cutter fitted with a metal cutting disc; cut ends should be touched up with a high quality metal primer once burrs are removed.
• Jointing - Connects to other Halifax Drain pipes and fittings using 200mm Halifax ductile iron or push fit couplings, not a caulked socket joint.

Full dimensions, coating specifications and installation guidance are set out in the manufacturer's Halifax Technical Guide.