The Difference Between American Standard Ball Valve And National Standard Ball Valve
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Ball Valve Currently, API and ASME standards are more popular.
American standard valves: Valves designed, manufactured, produced and tested according to American standards are called American standard valves.
The main differences between American standard valves and national standard valves are:
1. The unit of the nominal diameter of the national standard valve is mm, and the unit of the nominal diameter of the American standard valve is in (inch).
2. The American standard and national standard of flange standards are also different.
3. The structural length is different.
4. The inspection requirements are different. The inspection requirements of American standard valves are higher than those of national standards.
