Due to different standards, the structural length unit of the American standard flanged ball valve is also different from that of the domestic standard flanged ball valve, and its unit is generally marked in inches. American standard flanged ball valves of different specifications have different structural lengths, and their specific data are relatively complex, which will not be repeated here. This article mainly discusses the difference between the American standard flanged ball valve and other standard flanged ball valves in terms of structural length.

As we all know, according to different standards, flanged ball valves can be divided into American standard flanged ball valves, national standard flanged ball valves, Japanese standard flanged ball valves and German standard flanged ball valves. In fact, the development between these standards depends on the valve itself as the basis for flanged ball valves. Since the tone has been determined, it is not the difference in the above-mentioned structural length marker units, but the structural length itself will have a certain difference.

For example, in the selection of flanges, the flange of the national standard flanged ball valve is usually 5mm shorter than the flange of the American standard flanged ball valve. Of course, this is not because the volume of the national standard flanged ball valve is smaller than that of the American standard flanged ball valve, but because the installation environment of the pipeline system is different. There is no question of who is good or who is bad, but the applicable environment is different.