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This versatile Caleffi valve
The included stud bolt acts as an anti-rotation device
The external air supply connection allows you to draw combustion air from outside
die für eine vibrationsarme Fixierung sorgen
HydroKit HWC Kompaktes Kit für Warmwasserzirkulation an Boilers Außentemperaturfühler This versatile Caleffi valveHydroKit for hot water circulation LK 551 HydroKit for hot water circulation LK 551 HydroKit HWC 3 4" with scalding protection (adjustable outlet temperature) The LK 551 HydroKit HWC is a compact kit for hot water circulation. The hot water circulation ensures that the temperature in the system is maintained. This reduces the waiting time for hot water at the tap to a minimum. Hot water recirculation is particularly recommended in buildings with long
