Just do the Flange: Measurements and Sizes
Flange sizes can be measured by the amount of bolts and clamps, bolt size, bolt hole, bolt circle, outer diameter or OD and the maximum ID or inside diameter.Say, an NW 16 CF/ mini flange has 6 bolts (no need for clamps) along with a has bolt size of 832 by ¾.This flange has an ID of .630, 1.33 of OD, bolt circle is 1.063 along with a bolt hole of .169.You can find a lot of flange measurements obtainable on the internet for sources.Flanges are used for piping and nozzles systems.Flanges are internal or external rim (for strength) and guide (for train wheel).Flanges have numerous uses and which is the reason why its sizes need to be standardized.