Thermostatic Mixing Valves

The animation above illustrates how a thermostatic mixing valve works.  Further explanation is given in the document here.

Thermostatic mixing valves (TMVs) mix the hot and cold water supplies to produce a temperature-controlled flow. The hot water supply is typically around 60°C, and is maintained at this temperature to prevent the growth of harmful organisms, such as Legionella bacteria.  A supply of higher temperature water is also required for cleaning and washing purposes in the kitchen and laundry while also increasing the overall capacity of warm water (mixed with cold) to the building. Water at 60°C, however, can scald and so it is mixed with cold water, at the point of discharge, to produce a flow at a safe and comfortable temperature of 41°C.

In the 1920s, we developed the first thermostatic mixing valves or TMVs (named blender at the time) to be manufactured and sold in the UK. Now we supply TMVs in a range of sizes for a variety of applications including healthcare, nursing and sheltered accommodation, education, sport and leisure, housing associations and secure hospitals and prisons.

Follow the relevant link below to see each range of TMVs (DN15-DN50).

Useful Documents

How a Mixing Valve Works
PDF184 KB
 

HORNE 15

HORNE 15

A DN15 point of use thermostatic mixing valve (TMV) for wash hand basins, bidets, baths and showers in hospitals, schools, sport and leisure facilities, prisons and other public buildings...

HORNE 20

HORNE 20

A DN20 point of use mixer for low and high pressure bath mixing applications in hospitals and care homes. It is also suitable as a group mixer to supply multiple outlets, such as a row of basins or a group of showers. Integral isolating valves can be fitted.

HEATSTAT T2

HEATSTAT T2

Specially designed for the domestic market to reduce the potential for scalding accidents. From 1 May 2006 (Scotland) and 6th April 2010 (England, Wales & NI), all new build and refurbished dwellings require to have a thermostatic mixing valve fitted to the bath...

HORNE 25

HORNE 25

A DN25 thermostatic mixing valve with inlet and outlet compression connections for 28mm pipes. Can be used to supply safe hot water to a row of basin taps or a group of showers at a controlled temperature over a wide range of inlet pressures.


 

HORNE 32

HORNE 32

A DN32 themostatic mixing valve that provides temperature control for circulating domestic hot water systems (DHWS) from combination boilers and for circulating systems in conjuction with water treatment, such as ionisation. Dead Leg (DL) configutation can supply mixed warm water to multiple showers in sports facilities.



 

HORNE 40

HORNE 40

A DN40 themostatic mixing valve that provides temperature control for circulating domestic hot water systems from combination boilers and for circulating systems in conjuction with water treatment, such as ionisation. Dead Leg (DL) configutation can supply mixed warm water to multiple showers in sports and leisure facilities. Larger applications can use several valves in parallel for higher flow rates.

HORNE 50

HORNE 50

A DN50 themostatic mixing valve that provides temperature control for circulating domestic hot water systems from combination boilers and for circulating systems in conjuction with water treatment, such as ionisation. Dead Leg (DL) configutation can supply mixed warm water to multiple showers in sports  and leisure facilities. Larger applications can use several valves in parallel for higher flow rates.