Dimensions Size in Pipe OD Size in NB ID OD T 20 15 20 95 16 25 20 25 114 16 32 25 32 120 17 50 40 50 140 17 63 50 63 165 21 75 65 75 199 22 90 80 90 199 22 110 100 110 230 22 140 125 140 254 25 160 150 160 305 25 225 200 225 343 30 315 300 315 483 30

 NOTE : For slip on flanges ID may vary.