Corresponding table of RTJ (steel ring) and flanges of different pressure grades
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Table of correspondences between RTJ (steel rings) and flanges of different pressure classes (steel ring diameter and pipe size) ANSI B 16.5 150 300/600 900 1500 2500 R11 1/2 R12 1/2 1/2 R13 3/4 1/2 R14 3/4 3/4 R15 1 R16 1 1 3/4 R17 1 1/4 R18 1 1/4 1 1/4 1 R19 1 1/2 R20 1 1/2 1 1/2 R21 1 1/4 R22 2 R23 2 1 1/2 R24 2 2 R25 2 1/2 R26 2 1/2 2 R27 2 1/2 2 1/2 R28 2 1/2 R29 3 R30 3 R31 3 3 R32 3 R33 3 1/2 R34 3 1/2 R35 3 R36 4 R37 4 4 R38 4 R39 4 R40 5 R41 5 5 R42 5 R43 6 R44 5 R45 6 6 R46 6 R47 6 R48 8 R49 8 8 R50 8 R51 8 R52 10 R53 10 10 R54 10 R55 10 R56 12 R57 12 12 R58 12 R59 14 R60 12
You are referring to the diameter of the steel ring corresponding to the pipeline size and pressure rating; what I need here is mainly to know the diameter of the steel ring in order to find out the corresponding pressure rating and pipeline size.