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Thermostatic Mixing Valve Testing
UK
UK

Kiwa Watertec is accredited to test thermostatic mixing valves.  

Our robust testing procedure confirms that your product is safe, reliable and fit for purpose, based on established standards EN1111, EN1287, NHS Specification D08.

Apart from meaningful, rigorous testing, we offer a unique costing structure. Clients pay for the initial product test, and annual factory production control audits. As long as the product doesn’t change, there is no need for repeat testing. When additional models or changes are necessary, the process is very smooth. This approach can accommodate a developing product range.

The process is thorough, prompt and competitively priced.

 Thermostatically controlled valves are widely available to control the temperature of water for showering, bathing and hand-washing and provide the solution to scalding, by blending hot water with cold to ensure constant, safe outlet temperatures. These valves should be particularly considered in areas where people would be at the highest risk of scalding.

These valves can described as

Type 1

a mechanical mixing valves

Type 2 

a thermostatic mixing valve conforming to EN 1111 and EN1287

Type 3

a thermostatic mixing valve complying with NHS Estates requirements DO8.

 

 

 

 A Thermostatic Mixing Valves (TMV) Type 3 approval ensures that the valves are manufactured to meet the highest specifications required by the NHS Estates D08 standard for mixing valves for use within health care premises in the United Kingdom. Although Type 3 thermostatic mixing valves are predominatly used in the healthcare industry they can be used in all types of buildings.

Normal Conditions are

 

Type 2

Type 3

 

EN 1111

EN 1287

HP- D08

LP-DO8

Maximum Static Pressure

10Bar

10Bar

10Bar

10Bar

Flow Pressure, Hot & Cold

0.5 to 5Bar

0.1 to 1Bar

1 to 5Bar

0.2 to 1Bar

Hot Temperature - °C

55 to 65

55 to 65

52 to 65

52 to 65

Cold  Temperature - °C

≤ 25o

≤ 25 o

5 to 20

5 to 20

Kiwa certification is accepted for the following designations for Type 3 testing in accordance with DO8

-HP-B

High Pressure

Bidet

-HP-S

High Pressure

Shower

-HP-W

High Pressure

Washbasin

-HP-T44

High Pressure

Bath with fill temperature up to 44°C

-HP-T46

High Pressure

Bath with fill temperature up to 46°C

-HP-D44

High Pressure

Bath with fill up to 44°C & Shower up to 41°C

-HP-D46

High Pressure

Bath with fill up to 46°C & Shower up to 41°C

-LP-B

Low Pressure

Bidet

-LP-S

Low Pressure

Shower

-LP-W

Low Pressure

Washbasin

-LP-D44

Low Pressure

Bath with fill up to 44°C & Shower up to 41°C

-LP-D46

Low Pressure

Bath with fill up to 46°C & Shower up to 41°C

Who is this for?

Manufacturers of thermostatic mixing valves.

Contact

David Jay
watertecenquiries@kiwa.co.uk
01495 308185

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