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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...
Withdrawn: 2023 05 15
Publisher:
Austrian Standards International
Format:
Digital | 35 Pages
Language:
German | English | Download GER/ENG
Currently valid:
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 EN 257
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1996 10 01
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1992 07 01
Mechanical thermostats for gas burning appliances
Norm
ÖNORM M 7421-2
1980 09 01
Combinations of controls for gas appliances; temperature regulators and temperature limiters in comb...
Norm
Expand
Norm
ÖNORM EN 13611
Issue date : 2008 02 01
Safety and control devices for gas burners and gas burning appliances - General requirements
Norm
ÖNORM EN 257
Issue date : 2023 05 15
Mechanical thermostats for gas-burning appliances