PN1.6 raised face steel pipe flange
Thread Content
Can 20ii be used in place of 20i for flanges with the same nominal diameter and pressure rating?
It should work, right? Better too high than too low
No, the detection methods and regulations are different
I don’t quite understand it: why is it a problem to use level II in place of level I, or to use a higher level instead of a lower one?
Does the flange require a 20 grade I forging? Should 20 grade II forgings be used instead now? Broad, broad, completely broad. . Because. . In many places, it is required. . Flanges of PN16 (except for types such as plate butt weld flanges) must be forgings of grade II or above. .
I didn’t understand; I thought it was Generation I, Version II. Hehe