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Norm
ÖNORM EN 257
Issue date: 2010 08 01
Mechanical thermostats for gas-burning appliances
This European Standard specifies the safety, construction and performance requirements for mechanical
thermostats intended for use with gas appliances and similar use, h...
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Withdrawn
: 2023 05 15
Publisher:
Austrian Standards International
Format:
Digital | 35 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
ICS
This European Standard specifies the safety, construction and performance requirements for mechanical
thermostats intended for use with gas appliances and similar use, hereafter referred to as ‘thermostats’.
This European Standard applies to thermostats with declared maximum inlet pressures up to and including
50 kPa (500 mbar) of nominal connection sizes up to and including DN 50 for use with one or more fuel gases
in accordance with EN 437.
This European Standard applies to thermostats controlling the gas flow directly or indirectly through an
integral gas valve, and which do not require external electrical energy for their operation.
This European Standard only applies to thermostats used with gas appliances which are not installed in the
open air.
Thermostats dealt with in this European Standard are intended for control functions.
ÖNORM M 7421-2
1980 09 01
Combinations of controls for gas appliances; temperature regulators and temperature limiters in comb...
Norm
Norm
ÖNORM EN 13611
Issue date :
2008 02 01
Safety and control devices for gas burners and gas burning appliances - General requirements