M00001233
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ISO 23551-1 2nd Edition, August 15, 2012 Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Part 1: Automatic and semi-automatic valves
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 23551 specifies safety, constructional and
performance requirements and testing of automatic and
semi-automatic shut-off valves for gas burners, gas appliances and
appliances of similar use.
It applies to
—normally closed valves,
—valves being mounted upstream to gas burners and gas
appliances,
—valves with declared maximum working pressures up to and
including 500 kPa, for use on burners or in appliances using fuel
gases as natural gas, manufactured gas or liquefied petroleum gas
(LPG),
—valves directly or indirectly actuated, electrically or
by mechanical means,
—valves actuated by hydraulic or pneumatic means,
—valves where the flow rate is controlled by external
electrical signals, either in discrete steps or proportional to the
applied signal and
—valves fitted with closed position indicator
switches.
This part of ISO 23551 covers type testing only.