Caleffi 574 Series RPZ valves are used as a back flow prevention device. They need to be installed between the mains water supply (potable) and the internal consumer circuit (non-potable). The BA type back-flow prevention devices are designed for applications in water distribution systems to prevent the back siphoning and back flow into any potable water system.

NB. There are legal requirements regulating water installations in domestic, commercial and heath care premises. These requirements make it a criminal offense for any person, whether owner or occupier, to allow the wholesome (potable) water supply within their premises to become contaminated, wasted, misused or unduly consumed.

This is to prevent the contamination of the wholesome (potable) water supply system, the Water Regulations require back-flow protection devices to be installed at or near to all water points where water is to be drawn off for use.

For more information please contact your local water authority.