Hargreaves Halifax HD6681 150mm x 150mm Cast Iron Grey Rectangular Inspection Chamber
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Call for Availability150x150mm precast chamber unit with a rectangular door, avoiding a brick-built manhole at a twin branch junction below ground.
- Configuration - Rectangular door chamber sized for a twin branch junction.
- Footprint - 150x150mm branch sizing, matching the Halifax Drain range at this diameter.
- Body - Grey cast iron construction to BS EN 877, finished with a 2-pack epoxy coating averaging 150 microns or more.
- Servicing - The bolted rectangular door opens for rodding and inspection at the junction.
Installing a full brick or concrete manhole is not always proportionate for a smaller buried junction. The Halifax HD6681 packages a twin branch junction and a rectangular access door into one 150x150mm precast unit that drops straight into the run.
Why a chamber unit
Maintenance access at a junction follows the same general principle as elsewhere in BS EN 12056-2: somewhere to rod and inspect the pipework without digging it up. A precast chamber gets there without the labour of building a manhole from scratch, and this rectangular door version is sized for a twin branch configuration.
Build
- Casting - Grey cast iron construction to BS EN 877, finished with a 2-pack epoxy coating averaging 150 microns or more.
- Access door - Bolted rectangular door over the junction, opened for rodding and inspection.
Hardness
BS EN 877 sets a maximum Brinell hardness value that cast iron comfortably clears, which in practice means Halifax Drain components resist accidental marking, indentation or cutting far better than PVC or HDPE alternatives, while still being straightforward to cut to length on site with the right tools.
Full dimensions are set out in the manufacturer's Halifax Technical Guide.