Logo
Login Sign Up
Current Revision

BSI BS 7942:2011

Thermostatic mixing valves for use in care establishments. Requirements and test methods
Best Price Guarantee
Instant

$431.32

2-5 Days

$431.32

SAVE 10%

$776.38


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


View in Library
or
British Standards Institution Logo

BSI BS 7942:2011

Thermostatic mixing valves for use in care establishments. Requirements and test methods

PUBLISH DATE 2011
PAGES 60
BSI BS 7942:2011

This British Standard specifies performance and material requirements and gives test methods for three types of TMV, of nominal size up to and including DN25, for use in care establishments. The TMVs covered by this standard are those which are suitable for the hot and cold water supply pressures and temperatures given in Table 1, and those which are suitable for the applications given in Table 2.

Annex A to Annex E give the apparatus and test methods for the durability of TMVs. Annex F to Annex M and Annex O to Annex S give the apparatus and test methods for the performance of TMVs. Annex N gives an assessment of transient values. Annex T gives a summary of thermal performance requirements. Annex U and Annex V give recommendations for commissioning and in-service tests.

Table 1 TMV general use conditions

Pressure/temperature range High pressure (HP) Low pressure (LP)
Operating pressure
ā€ƒMaximum static water pressure (MPa) 1.0 1.0
ā€ƒFlow pressure, hot and cold (MPa) 0.1 to 0.5 0.02 to 0.1
Operating temperature
ā€ƒHot supply temperature (°C) 55 to 65 55 to 65
ā€ƒCold supply temperature (°C) 5 to 20 5 to 20

Table 2 Mixed-water temperature

Application Designation A) Mixed-water temperature (at point of discharge)
°C max.
Bidet HP-B, BE; LP-B, BE 38
Shower HP-S, SE; LP-S, SE 41
Washbasin HP-W, WE; LP-W, WE 41
Bath (44 °C fill) HP-T44; LP-T44 44
Bath (46 °C fill) HP-T46; LP-T46 46
Bath and shower mixer (44 °C bath fill) HP-D44; LP-D44 41 (shower);
44 (bath)
Bath and shower mixer (46 °C bath fill) HP-D46; LP-D46 41 (shower);
46 (bath)

NOTE: For washbasins, washing is assumed to take place under running water.

A) A TMV with a diverter designation (D) has the capability to change and control the mixed-water outlet temperature in line with the temperatures defined above when the supply path is changed from bath to shower or shower to bath.

SDO BSI: British Standards Institution
Document Number 7942
Publication Date Jan. 31, 2011
Language en - English
Page Count
Revision Level
Supercedes
Committee B/504/-/8
Loading...

Failed to load document history.

Publish Date Document Id Type View