How to choose flanges for European and American systems
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How to choose between the European and American types of flanges? In which situations should the European system flange standards be used? Under what circumstances should the American system flange standards be used? Could you explain the differences between the European system and the American system?
The European system uses the PN series, represented by HG20592, while the American system uses the Class series, represented by HG20615.
It’s still necessary to determine whether the existing old equipment requires uniform standards, as this facilitates management and makes it easier to manage spare parts.
HG20592 belongs to the European system and can be divided into A and B series; HG20615 is part of the American system and includes only the A series of imperial pipes
The American system is chosen for those that are aligned with British standards, while the European system is selected for those that are in line with national standards.
The design of a system first requires the definition of conditions, such as pressure p. Based on the pressure p, you can choose the pressure rating of the ball valve, with factors to consider including: the ease of procurement, price level, user requirements, and design conventions ； Once the pressure rating of the ball valve is determined, the flange standard is then decided as either European or American. If your design features a flange-to-flange connection, then either one will work; the factors to consider are inventory and cost.
It mainly involves designing the equipment valves required. The flanges are provided to serve them