| Integral Steel Flanges for Valves1-1/2"24":ANSI B16.5 1981BS 1560 1958>24":MSS SP-44 1991 End Flange Dimensions Nominalsize BoreA Outside Dia B Thicknessof Flange C Raisedface DiaD Dia of bolt circleE Numberofbolt holes Dia of bolt Class 150.RF 1-1/2" 38.1 127 17.5 73 98.4 4 1/2" 2" 50.8 152.4 19.1 92.1 120.7 4 5/8" 2-1/2" 63.5 177.8 22.2 104.8 139.7 4 5/8" 3" 76.2 190.5 23.8 127 152.4 4 5/8" 4" 101.6 228.6 23.8 157.2 190.5 8 5/8" 5" 127 254 23.8 185.7 215.9 8 3/4" 6" 152.4 279.4 25.4 215.9 241.3 8 3/4" 8" 203.2 342.9 28.6 269.9 298.5 8 3/4" 10" 254 406.4 30.2 323.9 362 12 7/8" 12 304.8 482.6 318 381 431.8 12 7/8" 14" 366.6 533.4 34.9 412.8 476.3 12 1" 16" 387.4 596.9 36.5 469.9 539.8 16 1" 18" 438.2 635 39.7 533.4 577.9 16 1-1/8" 20" 489 698.5 42.9 584.4 635 20 1-1/8" 24" 590.6 812.8 47.7 584.2 749.3 20 1-1/4" 26" 635 869.9 68.3 749.3 806.4 24 1-3/8" 28" 685.8 927.1 71.1 800.1 863.6 28 1-3/8" 30" 736.6 984.2 74.7 857.2 914.4 28 1-3/8" 32" 781.1 1060.4 80.8 914.4 977.9 28 1-5/8" 34" 831.9 1111.2 82.5 965.2 1028.7 32 1-5/8" 36" 876.3 1168.4 90.4 1022.3 1085.8 32 1-5/8" 38" 927.1 1238.2 87.4 1073.1 1149.3 32 1-5/8" 40" 977.9 1289 90.4 1123.9 1200.1 36 1-5/8" 42" 1022.4 1346.2 96.8 1193.8 1257.3 36 1-5/8" Class 300.RF 1-1/2" 38.1 155.6 20.6 73 114.3 4 3/4" 2" 50.8 165.1 22.2 92.1 127 8 5/8" 2-1/2" 63.5 190.5 25.4 104.8 149.2 8 3/4" 3" 76.2 209.5 28.6 127 168.3 8 3/4" 4" 101.6 254 31.8 157.2 200 8 3/4" 5" 127 279.4 34.9 185.7 235 8 3/4" 6" 152.4 317.5 36.5 215.9 269.9 12 3/4" 8" 203.2 381 41.3 269.9 330.2 12 7/8" 10" 254 444.5 47.6 323.9 387.4 16 1" 12 304.8 520.7 50.8 381 450.9 16 1-1/8" 14" 336.6 584.2 54 412.8 514.4 20 1-1/8" 16" 387.4 647.7 57.2 469.9 571.5 20 1-1/4" 18" 431.8 711.2 60.3 533.4 628.7 24 1-1/4" 20" 482.5 774.7 63.5 584.2 685.8 24 1-1/4" 22" 533.4 838.2 66.5 641.4 743 24 1-1/2" 24" 534.2 914.4 69.9 692.2 812.8 24 1-1/2" 26" 635 971.5 79.2 749.2 876.3 28 1-3/4" 28" 685.8 1035 85.5 800.1 939.8 28 1-3/4" 30" 736.6 1092.2 91.9 857.2 996.9 28 1-7/8" 32" 781.1 1149.3 98.5 914.4 1054.1 28 2" 34" 381.9 1206.5 101.6 965.2 1104.9 28 2" 36" 876.3 1270 104.6 1022.3 1168.4 32 2-1/8" 38" 927.1 1168.4 107.9 1028.8 1092.2 32 1-5/8" 40" 977.9 1238.2 114.3 1085.8 1155.7 32 1-3/4" Class 600.RF 1-1/2" 38.1 155.6 22.2 730 114.3 4 3/4" 2" 50.8 165.1 25.4 92.1 127.0 8 5/8" 2-1/2" 63.5 190.5 28.6 104.8 149.2 8 3/4" 3" 76.2 209.6 31.8 127.0 168.3 8 3/4" | 
