Product category:
Valve Hardware (Filters, Flow Controls, Positioners etc)
News Release from: Honeywell Control Systems | Subject: BA294 RPZ back-flow prevention valves
Edited by the Engineeringtalk Editorial
Team on 06 July 2001
Valves prevent chemicals entering water
supply
Ralken Colours 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
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 and meeting the back flow requirements of the Water Supply (Water Fittings) Regulations 1999 Yorkshire Water carried out a Water Regulations survey that highlighted the need for the Honeywell BA294 RPZ (Reduced Pressure Zone) back-flow prevention valves
This article was originally published on Engineeringtalk on 18 Sep 2007 at 8.00am (UK)
Related stories
Versatile drives ease customer choice
A few Honeywell variable speed drives cater for all HVAC applications up to 30kW, simplifying model selection and reducing stockholding.
Backflow preventers protect water supply
Honeywell BA295 valves protect drinking water systems against back pressure, back flow and back siphonage, ensuring compliance with relevant water regulations.
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 a traditional break tank and booster pump.
Honeywell D06F pressure reducing valves are also installed at Ralken Colours to protect the RPZ valves from high 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.
It was a requirement of the installation that a strainer be fitted before each RPZ valve assembly and that isolation valves were installed on both sides.
Honeywell water control products are manufactured by Honeywell's Home and Building Control business and were supplied in this case by BSS of Leeds.
The requirements for the installation and testing of RPZ valve assemblies are given in the WRAS Information and Guidance Note 9-03-02 Issue 3.
• Honeywell Control Systems: contact details and other news
• Email this article to a colleague
• Register for the free Engineeringtalk email newsletter
• Engineeringtalk Home Page
Search the Pro-Talk network of sites
