Do You Know The Difference Between American Standard Ball Valve And National Standard Ball Valve?
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Ball Valve refers to valves designed and produced according to American standards. Currently, the two most popular standards for American standard valves are API and ASME standards.
What are the differences between American standard ball valves and national standard ball valves?
1) Different structural lengths
2) Different inspection standards (American standard valves have higher inspection standards)
3) Different flange standards
4) Different nominal diameters (the nominal diameter of American standard valves is in/inch; the nominal diameter of national standard valves is in mm/millimeter)
