Newsdesk - July/August 2001

Backflow prevention valves safeguard water supplies

Ralken Colours of Bradford has installed two Honeywell back-flow prevention valves to prevent chemicals entering the public water supply during a wash-down process, so safeguarding water supplies.

Yorkshire Water carried out a Water Regulations Survey that highlighted the need for the Honeywell BA294 RPZ (Reduced Pressure Zone) back-flow prevention valves. They warned that, under certain conditions, the cleaning of chemical drums using trigger-operated hoses could result in contaminated water being sucked into the water main.

Honeywell RPZ valves are often used where reliable back-flow prevention is required, as they can provide a cheaper and more compact solution than traditional break tank and booster pump.

Honeywell D06F pressure reducing valves are also installed at Ralken Colours to protect the RPZ valves from overnight pressures and from pressure fluctuations in the water main. D06F valves are widely used throughout industry in this way to provide stable pressure to the RPZs, so ensuring smooth and trouble free valve functioning.

• Honeywell Home & Building Control
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