Hargreaves Halifax HD4078 100mm Cast Iron Grey Puddle Flange
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Call for Availability100mm puddle flange for sealing a Halifax Drain pipe where it passes through a basement or external wall.
- Function - Reduces the risk of water entering a building where a pipe passes through a wall below the water table or in a flood-liable area.
- Diameter - 100mm nominal bore, matching the Halifax Drain range.
- Fixings - Bolt-on flange supplied in two halves with stainless steel nuts and bolts.
- Material - Manufactured in grey cast iron to BS EN 877, with an average external epoxy coating of at least 150 microns.
The Halifax HD4078 is one of the Halifax Drain range: a 100mm puddle flange, fitted where a pipe passes through a basement or external wall, to reduce the risk of water entering the building.
Where it is used
In basement areas, or where pipes pass through external walls below the water table or in flood-liable locations, a puddle flange helps keep water out along the pipe run. Denso tape or similar should be wrapped around the pipe before the two-piece flange is bolted on, to achieve a watertight seal.
Construction
- Material - Manufactured in grey cast iron to BS EN 877, with an average external epoxy coating of at least 150 microns.
- Fixings - Two-piece bolt-on flange with stainless steel nuts and bolts.
Strength below ground
Buried pipework has to withstand more than its own weight: backfill loads and, in places, traffic loading above. Cast iron consistently exceeds the ring crush strength required by BS EN 877, giving it greater resistance to crushing than PVC or HDPE alternatives of the same diameter.
Full dimensions are set out in the manufacturer's Halifax Technical Guide.