Dimensions for ANSI B16.47 Series B (API 605)
DIMENSIONS SHOWN: Gasket I.D x Gasket O.D. x Guide Ring O.D.
Nominal                                                            
Pipe Size     75 lb         150 lb         300 lb         400 lb         600 lb         900 lb    
(NPS) I.D.   O.D.   O.D. I.D.   O.D.   O.D. I.D.   O.D.   O.D. I.D.   O.D.   O.D. I.D.   O.D.   O.D. I.D.   O.D.   O.D.
26" 26-1/4 x 27 x 27-7/8 26-1/2 x 27-1/2 x 28-9/16 26-1/2 x 28 x 30-3/8 26-1/4 x 27-5/8 x 29-3/8 26-3/8 x 28-3/8 x 30-1/8 27-1/2 x 29-1/2 x 33
28" 28-1/4 x 29-1/8 x 29-7/8 28-1/2 x 29-1/2 x 30-9/16 28-1/2 x 30 x 32-1/2 28-1/4 x 29-3/4 x 31-1/2 28-1/2 x 30-1/2 x 32-1/4 29-1/2 x 31-1/2 x 35-1/2
30" 30-1/4 x 31-1/8 x 31-7/8 30-1/2 x 31-1/2 x 32-9/16 30-1/2 x 32 x 34-7/8 30-1/4 x 32 x 33-3/4 30-5/8 x 32-5/8 x 34-5/8 31-3/4 x 33-3/4 x 37-3/4
32" 32-1/4 x 33-1/8 x 33-7/8 32-1/2 x 33-1/2 x 34-11/16 32-1/2 x 34 x 37 32-1/4 x 34-1/8 x 35-7/8 32-3/4 x 34-3/4 x 36-3/4 34 x 36 x 40
34" 34-1/4 x 35-1/8 x 35-7/8 34-1/2 x 35-3/4 x 36-13/16 34-1/2 x 36 x 39-1/8 34-1/4 x 36-1/8 x 37-7/8 35 x 37 x 39-1/4 36-1/4 x 38-1/4 x 42-1/4
36" 36-1/4 x 37-1/4 x 38-5/16 36-1/2 x 37-3/4 x 38-7/8 36-1/2 x 38 x 41-1/4 36-1/4 x 38-1/4 x 40-1/4 37 x 39 x 41-1/4 37-1/4 x 39-1/4 x 44-1/4
38" 38-1/4 x 39-5/16 x 40-5/16 38-1/2 x 39-7/8 x 41-1/8 39-3/4 x 41-1/4 x 43-1/4 38-1/4 x 40-1/4 x 42-1/4 39 x 41 x 43-1/2 40-3/4 x 42-3/4 x 47-1/2
40" 40-1/4 x 41-5/16 x 42-5/16 40-1/2 x 42-1/8 x 43-1/8 41-3/4 x 43-1/4 x 45-1/4 40-3/8 x 42-3/8 x 44-3/8 41-1/4 x 43-1/4 x 45-1/2 43-1/4 x 45-1/4 x 49-1/4
42" 42-1/4 x 43-1/4 x 44-5/16 42-1/2 x 43-7/8 x 45-1/8 42-1/2 x 44 x 47-1/4 42-3/8 x 44-3/8 x 46-3/8 43-1/2 x 45-1/2 x 48 45-1/4 x 47-1/4 x 51-1/4
44" 44-1/4 x 45-1/2 x 46-1/2 44-1/2 x 46-1/8 x 47-1/8 45-3/4 x 47-1/4 x 49-1/4 44-1/2 x 46-1/2 x 48-1/2 45-3/4 x 47-3/4 x 50 47-1/2 x 49-1/2 x 53-7/8
46" 46-1/4 x 47-1/2 x 48-1/2 46-1/2 x 48-3/16 x 49-7/16 47-7/8 x 49-3/8 x 51-7/8 47 x 49 x 50-3/4 47-3/4 x 49-3/4 x 52-1/4 50 x 52 x 56-1/2
48" 48-3/8 x 49-1/2 x 50-1/2 48-1/2 x 50 x 51-7/16 48-1/2 x 50 x 53-7/8 49 x 51 x 53 50 x 52 x 54-3/4 52 x 54 x 58-1/2
50" 51-1/4 x 51-1/2 x 52-1/2 50-1/2 x 52-3/16 x 53-7/16 51-7/8 x 53-3/8 x 55-7/8 51 x 53 x 55-1/4 52 x 54 x 57 - - -   - - -   - - -
52" 52-3/8 x 53-3/8 x 54-5/8 52-1/2 x 54-3/16 x 55-7/16 53-7/8 x 55-3/8 x 57-7/8 53 x 55 x 57-1/4 54 x 56 x 59 - - -   - - -   - - - 
54" 54-3/8 x 55-5/8 x 56-5/8 54-1/2 x 56 x 57-5/8 54-1/2 x 56 x 60-1/4 55-1/4 x 57-1/4 x 59-3/4 56-1/4 x 58-1/4 x 61-1/4 - - -   - - -   - - -
56" 56-1/2 x 57-7/8 x 58-7/8 56-1/2 x 57-7/8 x 59-5/8 58-3/4 x 60-1/4 x 62-3/4 57-1/4 x 59-1/4 x 61-3/4 58-1/4 x 60-1/4 x 63-1/4 - - -   - - -   - - -
58" 58-1/2 x 59-7/8 x 60-7/8 58-1/2 x 59-15/16 x 62-3/16 60-7/16 x 61-15/16 x 65-3/16 59-1/4 x 61-1/4 x 63-3/4 60-1/2 x 62-1/2 x 65-1/2 - - -   - - -   - - -
60" 60-1/2 x 61-3/4 x 62-7/8 60-1/2 x 61-5/16 x 64-3/16 60-1/2 x 62 x 67-3/16 61-3/4 x 63-3/4 x 66-1/4 62-3/4 x 64-3/4 x 68-1/4 - - -   - - -   - - -