Float valve kit:
May 1st 2007

Keraflo's KP type float valve kit ensures flexibility in the level of water stored in large tanks supplied by pipework of up to 200mm (8in) diameter.

This feature is said to be of particular importance in buildings with seasonal occupancy, such as universities and football stadia where the building may be unoccupied in summer. In these cases, stagnation of stored water, coupled with high ambient temperatures, can lead to conditions which allow legionella and other harmful organisms to colonise the tank and multiply.

Other advantages claimed for this type of float valve kit are: delayed action for full flow during tank filling; no water hammer, valve bounce or dribble; and tank capacity maximised. Valves are suitable for Types AA, AB, AF and AG air gaps.

The Keraflo KP type valve kit comprises a Keraflo 'Aylesbury' KB type float valve which may be located in the tank itself or in a valve chamber, together with a large in-line KP type control valve in the supply pipework. The KP type valve is opened and closed by the KB type, acting as a pilot valve.