Hot Water Safety
TMV’s– Thermostatic Mixing Valves Standards
Thermostatic valve- Some mixer taps are fitted with a
thermostatic device which blends the incoming hot and cold water
to maintain a constant set temperature. The device can be set to
a maximum temperature to prevent scalding. Sometimes the
thermostatic blending device is separate from the tap bodies,
not built in.
BSI British Standards
BSI British Standards' publications give recommendations on a
wide range of building and construction matters including
materials, testing, health and safety, access and regulations.
They are essential reference for architects, developers,
building owners, site managers, building contractors, structural
engineers, materials specifiers and other interested parties.
British Standards Institution
Always check for the most up-to-date version of the standard
Specification for design, installation, testing, and maintenance
of services supplying water for domestic use within buildings
and their cartilages.
Thermostatic mixing valves for use in care establishments.
Requirements and test methods
BS EN 1111
Sanitary tapware. Thermostatic mixing valves (PN10). General
BS EN 1112
Sanitary tapware. Shower outlets. Shower outlets for sanitary
tapware for water supply systems type 1 and type 2. General
BS EN 1113
Sanitary tapware. Shower hoses for sanitary tapware for water
supply systems type 1 and type 2. General technical
BS EN 1287
Sanitary tapware. Low pressure Thermostatic mixing valves.
General technical specification
NHS Model Engineering Specification D 08
Specifies the performance, material requirements and test
methods for thermostatic mixing valves for use in care
establishments.Is referenced in many other NHS documents.Forms
the basis for BuildCert TMV3 approval.
Independent third party approval body responsible for the
running of the TMV2 and TMV3 approval schemes. It accepts
results from various test houses accredited to BS EN ISO / IEC
Water Regulations Advisory Scheme (WRAS)
Approval body responsible for the running of the WRAS
approval scheme that certifies product complying to the Water
Regulations. It accepts results from various test houses
accredited to toBS EN ISO / IEC 17025.
Third party independent test house and approval body that
undertakes testing to toBS EN ISO / IEC 17025 for fittings for
Kiwa UK approval (compliance to Water Regulations), WRAS
approval and BuildCert Approval.
Third party independent test house that undertakes testing to
toBS EN ISO / IEC 17025for fittings for WRAS approval and
BS EN ISO/IEC 17025
General requirements for the competence of testing and
BRE IP 14/03
This document provides guidance on the best practice and the
suitability of thermostatic mixing valves for the intended
application and includes details of legal requirements of
particular types of installations.