The KalGUARD limescale prevention system provides permanent treatment and is made up of several components:
The size of KalGUARD anode required relates to the flow rate of the system. Please refer to the following table to select the most appropriate KalGUARD system for your needs. If you are not sure about what you need, please refer to the adjacent contact details: your local Sentinel Commercial expert will be able to assist. KalGUARD is best positioned on the incoming main for whole system limescale control and is optimised on the building demand, not simply on pipe diameter.
Flow rate up to | Recommended anode |
37 litres/min | 22mm |
64 litres/min | 28mm |
96 litres/min | 35mm |
142 litres/min | 42mm |
255 litres/min | 54mm |
423 litres/min | 67mm |
523 litres/min | 76mm |
1099 litres/min | 108mm |
KalGUARD is available in full packs, which come with the in-line filter, or part packs which do not contain the in-line filter. KalGUARD is best positioned on the incoming main for whole system limescale control and is optimised on the building demand, not simply on pipe diameter.
Please select the appropriate KalGUARD pipe diameter you require from the selection below:
Sentinel is a company with a clear goal: we offer water treatment products and services that provide the best lifetime protection for heating and hot water systems. Originally launched in the UK by Grace Dearborn in 1988 and subsequently a subsidiary of the leading multinational General Electric, Sentinel has operated independently since 2005, expanding its international reach and range of innovative solutions. As of 2021, Sentinel is owned by Aalberts N.V., and sits in the hydronic flow control cluster.