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The bronze pump body sets it apart from standard cast-iron heating circulators — it is approved for direct contact with drinking water
Open hot water outlets to bleed air
keeping floor space clear
or installing spiral duct sections
a renewable drop-in alternative to kerosene
Galvanised Spiral Duct 160mm x 3m SPIR160 warranties The bronze pump body setsThe SPIR160 is a 160mm diameter, 3 metre length of galvanised spiral ducting, manufactured from spiral wound galvanised mild steel to HVCA BESA DW144 specification. It forms the core straight run component of a 160mm metal ducting system, suitable for general ventilation, mechanical extract, MVHR distribution, dust extraction, and fume control. The hot dip galvanised (Sendzimir) zinc coating provides long term corrosion resistance without painting,
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