During the development of projects related to industrial pipelines, various standards queries are required., measures and products. We present below an interesting dimensional and theoretical table, which facilitates consultation within various standards and pressure classes of industrial flanges and connections.
You can also consult the equivalence between materials, Bolt hole dimensions for each gauge and flange class, roughness and finish of machined faces, connection tolerance, flanges e AWWA, SCH tube table and fluid compatibility.
Source: Portal hci
Table of Standards and Measures: Flanges and Industrial Connections