EN 1359膜式煤气表
日期:2020-03-18 16:38
s meters (referred to as meters). This applies to meters with co-axial single pipe, or two pipe connections, that are used to measure volumes of fuel gases, which are within the limits of test gases of the 1st, 2nd and 3rd families described in EN 437. The meters have maximum working pressures not exceeding 0,5 bar and maximum actual flow rates not exceeding 160 m3h-1 over a minimum ambient temperature range of-10C to 40C and a gas temperature range as specified by the manufacturer with a minimu
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01/11 11:38