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Reliance Worldwide Corporation (UK) Limited

Worcester Road, Evesham, 

Worcestershire, 

WR11 4RA, UK

Tel: +44 (0)1386 712400  

Fax: +44 (0)1386 712401

www.rwc.co.uk

Full Internal Service Kit

SKIT170015

Temperature Adjuster Key and Cap

SKIT160300 

(kit also contains adjusting key)

4in1 Adaptor Service Kit

SKIT300020

2in1 Adaptor Service Kit

SKIT219053

NOTE 

When re-assembling the mixing valve, ensure that the components are replaced in the 

correct order (as illustrated).

Use only WRAS Approved silicon based waterproof grease.

Working Parameters and 

Specifications

Factory temperature setting :    

38˚C

Temperature setting range :            

38-46˚C

Temperature, hot supply :               

52-65˚C

Temperature, cold supply :              

5-20˚C

Minimum hot to mix differential   

temperature :                                 

10˚C

Temperature stability :                    

± 2˚C 

Working pressure, static :               

16 bar max.

Working pressure, dynamic :       

Low pressure 0.2 - 1 bar

 

 

 

 

High pressure 1 - 5 bar

Maximum pressure loss ratio :         

10:1

Flow rate, minimum :                       

4 lpm

Flow rate @ 1bar pressure loss :      

21 lpm

 

Approved Specification

s

Code 

Operating  

Application

 

 

Pressure  

      

HP-S 

High Pressure  Shower - maximum temperature 41˚C

HP-W 

High Pressure  Washbasin - maximum temperature 41˚C   

HP-B 

High Pressure  Bidet - maximum temperature 

38˚C     

HP-T44 

High Pressure  Bath fill- maximum temperature 44˚C

HP-T46 

High Pressure  Bath fill - maximum temperature 46˚C

LP-S 

Low Pressure  Shower - maximum temperature 41˚C

LP-W 

Low Pressure  Washbasin - maximum temperature 41˚C

 

LP-B 

Low Pressure  Bidet - maximum temperature 

38˚C

Flow Rate

Fig 3

Heatguard TMV3-8

Thermostatic Mixing Valve

Installation and Maintenance 

Instructions

The Heatguard TMV3-8 is a type 3 thermostatic mixing valve 

which has been manufactured to NHS model engineering 

specification DO8 and is approved under the TMV3 scheme. 

 

Reliance Worldwide Corporation (UK) Ltd reserves the right to make changes to the product which may 

affect the accuracy of information contained in this leaflet.

 

ZINS160001_003_10-15

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