ČSN EN 16678 ed. 2
Bezpečnostní a řídicí přístroje pro hořáky na plynná paliva a spotřebiče plynných paliv - Samočinné uzavírací ventily pro provozní tlak nad 500 kPa a do a včetně 6 300 kPa

ČSN EN 16678

EN 13611:2019, Clause 1 applies with the following modification and addition:
Modification:
The 1st paragraph of EN 13611:2019, Clause 1 is replaced by:
This document specifies the safety, design, construction, and performance requirements and testing for automatic shut-off valves for burners and appliances burning one or more gaseous fuels, hereafter referred to as "valves".
This document is applicable to valves with declared maximum inlet pressures of more than 500 kPa and up to and including 6 300 kPa and of nominal connection sizes up to and including DN 250.
Addition:
This document is applicable to:
- electrically actuated valves;
- valves actuated by fluids including the pilot valves for these fluids if actuated electrically and including release valves, but not to any external electrical devices for switching the actuating energy;
- valves where the flow rate is controlled by external electrical signals proportional to the applied signal;
- valves fitted with closed position indicator switches.
This document is not applicable to valves specifically designed for use in transmission and distribution networks.
The 4th paragraph of EN 13611:2019, Clause 1 is removed.