Thursday 24 March 2011

THERMOSTATIC BLENDING VALVES PROTECT AGAINST DANGER OF SCALDING WATER


Each year 20 people die and almost 600 suffer serious burns from scalding bath water. The young, elderly and those with mobility problems are most at risk. The most effective way of ensuring safe hot water temperatures is to use a thermostatic mixing valve (TMV). A TMV will maintain the preset temperature even if the water pressure fluctuates when other appliances are used and will completely shut down the outlet flow if either the hot or cold supply fails.

It is vital hot water safety is considered at the design stage of a commercial project. According to NHS guidelines, water temperatures should never exceed 46°C. Bath fill is recommended at 44°C, showers and washbasins at 41°C while bidets should never exceed and 38°C. Current legislation in healthcare and education makes the use of TMV3 approved valves a must. Part G of the building regulations requires that water delivered to a bath is thermostatically controlled.

Sirrus has one of the largest ranges of TMV3 valves which comply with BS7942 and are BuildCert approved to NHS standard D08, meeting the demands of all application. Sirrus’ mixing valves are suitable for 15, 22 and 28mm supplies. Designed to deliver safe, stable hot water at a pre-set temperature to single or multiple outlets, they are ideal for a wide range of installations where users may be at risk or where precise water temperature control is a prerequisite. Service isolation and inline plumbing can also be catered for.

The latest products in the range are all TMV2 and TMV3 approved and therefore Part G compliant and incorporate an automatic shut-off feature in the event of hot or cold water supply failure. New products include:

MT503CP-22 - A 15mm blending valve with 22mm Compression inlets. Suitable for high pressure bath fills, the MT503 CP-22 has 22mm inlets and 15mm outlet. Check valves and serviceable filters are supplied as standard.

IN403CP – A 15mm inline blending valve which is ideal for basins as it plumbs in line with standard pipework and will be easily hidden by a pedestal. It is also easy to service, thanks to the inclusion of check valves and serviceable filters.

IN403CP-ISO – As above, but with an isolation valve making it even easier to service.

For more information visit www.sirrusshowers.co.uk

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