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