The Difference Between American Standard Ball Valve And National Standard Ball Valve
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Ball Valve is different from the national standard ball valve. From the brand name, we can know that the former is the American standard brand, and the latter is the Chinese standard brand. In addition, there are the following differences between the two:
1. Nominal diameter: The nominal diameter unit of the national standard ball valve is mm (millimeter), and the nominal diameter unit of the American standard ball valve is in (inch).
2. Different structural lengths.
3. Inspection requirements: The inspection requirements of the American standard ball valve are more stringent.
