{"id":10225,"date":"2018-07-10T12:52:13","date_gmt":"2018-07-10T10:52:13","guid":{"rendered":"https:\/\/www.kromschroeder.de\/process-heat\/products\/kromschroeder-system-technology\/gas-systems\/standards\/en-746-22010\/5-2-gaseous-fuels\/5-2-2-required-safety-devices\/5-2-2-3-automatic-shut-off-valves\/5-2-2-3-2-single-burner-equipment\/"},"modified":"2018-07-28T11:57:08","modified_gmt":"2018-07-28T09:57:08","slug":"5-2-2-3-2-single-burner-equipment","status":"publish","type":"page","link":"https:\/\/www.kromschroeder.de\/en\/kromschroeder-system-technology\/gas-systems\/standards\/en-746-22010\/5-2-gaseous-fuels\/5-2-2-required-safety-devices\/5-2-2-3-automatic-shut-off-valves\/5-2-2-3-2-single-burner-equipment\/","title":{"rendered":"5.2.2.3.2 Single burner equipment"},"content":{"rendered":"

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    5.2.2.3.2 Single burner equipment<\/h1>\n
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    The gas supply to the burner shall be under the control of two class A automatic shut-off valves of EN 161 in series in the gas pipework.<\/p>\n

    For natural draught burner with a controlled capacities below 70 kW there shall be at least two class B valves of EN 161.<\/p>\n

    A thermo-electric flame supervision device complying with EN 125 is acceptable for natural draught burners operating in open air with controlled capacities below 70 kW and for natural draft burners operating in combustion chamber with controlled capacities below 2,5 kW.<\/p>\n

    The automatic shut-off valves shall not open or shall shut off the fuel to the burner when the limit of any safety condition is reached. The following conditions shall be taken into account:<\/p>\n