EN 16304:2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Units of measurement and test conditions
6 Construction requirements
7 Performance
8 EMC/Electrical requirements
9 Marking, installation and operating instructions
Annex A (informative) - Gas connections in common
        use in the various countries
Annex B (informative) - Leak-tightness test - volumetric
        method
Annex C (informative) - Leak-tightness test - pressure
        loss method
Annex D (normative) - Conversion of pressure loss into
        leakage rate
Annex E (normative) - Electrical/electronic component
        fault modes
Annex F (normative) - Additional requirements for safety
        accessories and pressure accessories as defined
        in EU Directive 97/23/EC
Annex G (normative) - Materials for pressurised parts
Annex H (informative) - Additional materials for
        pressurised parts
Annex I (normative) - Requirements for controls used
        in DC supplied gas burners and gas burning
        appliances
Annex ZA (informative) - Relationship between this
         European Standard and the Essential
         Requirements of EU Directive 2009/142/EC
         relating to appliances burning gaseous fuels
Bibliography

This European Standard specifies the safety, construction and performance requirements for automatic vent valves for use with gas burners, gas appliances and similar use, hereafter referred to as ‘valves’. This European Standard is applicable to: -valves with declared maximum inlet pressures up to and including 500 kPa (5 bar) of nominal connection sizes up to and including DN 100 for use with one or more fuel gases in accordance with EN 437:2003+A1:2009;-electrically operated valves;-valves actuated by fluids where the control valves for these fluids are actuated electrically, but not to any external electrical devices for switching the control signal or actuating energy;-valves fitted with open position indicator switches.NOTEProvisions for final product inspection and testing by the manufacturer are not specified.