HIP Magazine Autumn 2021 issue

Page 19

FEATURE: PUMPS & VALVES | HIP

TMVS – THE FACTS

For more information visit: www.altecnic.co.uk

A thermostatic mixing valve (TMV) blends cold water with hot water and maintains this at a set temperature to ensure safe and comfortable water temperatures, reducing the risk of scalding. HOW DOES IT WORK?

WHERE TMVS SHOULD BE INSTALLED?

TMVs are intended to deliver water used for ablutionary purposes (washing, showering and bathing). Tempering valves also blend hot and cold water usually for delivery at higher temperatures not suitable for these purposes. They are used in systems where the temperature of water in the storage cylinder can exceed 60ºC, such as in solar heating systems with multiple outlets or as part of recirculating domestic hot water systems.

These valves should be installed in areas where people would be at risk of scalding. Different TMVs are available depending on the specification and standards that they meet and the type of property they are installed in. These vary from healthcare and nursing home applications to installations from point of use of baths to centralised mixing in commercial properties such as sports facilities, where stable temperatures with high volume flow rates are required.

HOT

COLD

The controlling element of the TMV is a temperature sensor which is fully immersed in the mixed water outlet port. This expands or contracts to continually maintain the correct proportion of hot and cold water entering the valve.

WHAT IS THE DIFFERENCE BETWEEN A TMV AND A TEMPERING VALVE?

Altecnic Merchant Mixing Valve-Art 5213

MIXED

“DIFFERENT TMVS ARE AVAILABLE DEPENDING ON THE SPECIFICATION AND STANDARDS THAT THEY MEET AND THE TYPE OF PROPERTY THEY ARE INSTALLED IN.” WWW.HIP-MAGAZINE.CO.UK

< 2021 AUTUMN |

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