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Prison installs Honeywell valves for immediate hot water

29 April 2010

A new prison in Scotland has been fitted with 130 Honeywell Kombi-4 throttle valves to ensure immediate domestic hot water from all outlets.

Two Honeywell SV300 fast-acting safety valves are also installed to prevent overpressure in the booster cold water system.

The Honeywell valves were specified by SPIE Matthew Hall, main building services contractors at the privately-run prison for 700 inmates. The Kombi-4 valves were selected as an economical way to provide automatic hot water balancing, being installed in the returns of the constant hot water systems.  Their thermal disinfection feature is invaluable during anti-legionella procedures, when water over 70 degrees is flushed through the system for thermal disinfection; the Kombi-4 valves automatically open further to ensure hot water is rapidly distributed in all risers and pipelines, whilst maintaining the balance.  The valves return automatically to their usual control state when the water temperature falls to normal.

The Kombi-4 throttle valve is small, costs less than other auto-balancing systems, and is easily fitted using DN15 – DN40 internal or external threads.  Its optional drainage adaptor provides convenient system drainage.

The Honeywell SV300 is a “quick relief” safety valve controlled by the medium flowing through it, via a pilot valve. It protects downstream parts of a system which are at risk from unacceptable excess pressure.  It is supplied in sizes from DN50 –DN450, with PN16 flanges.

Reader enquiry details:
Honeywell Water Controls
Freephone 0800 7833 824

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