FLANGE DIMENSIONS ANSI B16.5 CLASS 150/300/600/900LB
ANSI B16.25
| Nominal Pipe Size | 3~ | 4~ | 5~ | 6~ | 8~ | 10~ | 12~ | 14~ | 16~ |
| A-inches | 3.59 | 4.62 | 5.69 | 6.78 | 8.78 | 10.94 | 12.97 | 14.25 | 16.25 |
| Nominal Pipe Size | 18~ | 20~ | 24~ | 26~ | 28~ | 30~ | 32~ | 34~ | 36~ |
| A-inches | 18.28 | 20.31 | 24.38 | 26.38 | 28.38 | 30.38 | 32.50 | 34.50 | 36.50 |
~Class 150 and 300 valvess 12-inch and smaller are regularly mechined as shown in two upper illustrations.Unless other wise specified,ends are bored to match schedule 40 pipe in valvess 10-inch and smaller and standard wall pipe(0.37~thick) in 12-inch valvess.
~Orders for Class 150 and 300 butt-welding valvess 14-inch and larger.And for Class 400 and higher valvess in all sizes,Must specify the inside diameter of the pipe with which the valvess will be used,and the type of backing ring required.Ohter types of weld end preparation can be furnished when specified.
Note:
A=Outside Diameter(Cast Steel valvess) ~~~~~~~~B=Nominal Inside Diameter of pipe
C=B+0.25t-0.041~ t=Nominal Pipe Wall Thickness
C=B+0.25t-0.041~ 0.09=3/32~0.75=3/4~ 0.12=1/8~0.88=7/8
0.03=1/32~0.16=5/32~0.06=1/16~0.38=3/8
ANSI CLASS 150/300Lb
Note:
1.NPS 24~and smaller by ANSI B16.5,NPS 26 and larger by MSS SP-44.
2.Class 150 and Class 300 flange lowest thickness included 0.06 inch convexity.
Flanged ends dimensionsClass 150Lb
| NPS | DN | D | D1 | D2 | b | d | Stub Bolt | Bolt Length | |||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | Num | Diam. | RF | R&G |
| 2 | 50 | 6.00 | 150 | 4.57 | 120.5 | 3.62 | 92 | 0.75 | 19.5 | 0.75 | 18 | 4 | 5/8 | 3.25 | 3.75 |
| 2-1/2 | 65 | 7.00 | 180 | 5.50 | 139.5 | 4.12 | 105 | 0.88 | 22.5 | 0.75 | 18 | 4 | 5/8 | 3.50 | 4.00 |
| 3 | 80 | 7.50 | 190 | 6.00 | 152.5 | 5.00 | 127 | 0.94 | 24 | 0.75 | 18 | 4 | 5/8 | 3.50 | 4.00 |
| 4 | 100 | 9.00 | 230 | 7.50 | 190.5 | 6.19 | 157.5 | 0.94 | 24 | 0.75 | 18 | 8 | 5/8 | 3.50 | 4.00 |
| 6 | 150 | 11.00 | 280 | 9.50 | 241.5 | 8.50 | 216 | 1.00 | 25.5 | 0.88 | 22 | 8 | 3/4 | 4.00 | 4.50 |
| 8 | 200 | 13.50 | 345 | 11.75 | 298.5 | 10.62 | 270 | 1.12 | 29 | 0.88 | 22 | 8 | 3/4 | 4.25 | 4.75 |
| 10 | 250 | 16.00 | 405 | 14.25 | 362 | 12.75 | 324 | 1.19 | 30.5 | 1.00 | 26 | 12 | 7/8 | 4.50 | 5.00 |
| 12 | 300 | 19.00 | 485 | 17.00 | 432 | 15.00 | 381 | 1.25 | 32 | 1.00 | 26 | 12 | 7/8 | 4.75 | 5.25 |
| 14 | 350 | 21.00 | 535 | 18.75 | 476 | 16.25 | 413 | 1.38 | 35 | 1.12 | 29.5 | 12 | 1 | 5.25 | 5.75 |
| 16 | 400 | 23.50 | 600 | 21.25 | 540 | 18.50 | 470 | 1.44 | 37 | 1.12 | 29.5 | 16 | 1 | 5.25 | 5.75 |
| 18 | 450 | 25.00 | 635 | 22.75 | 578 | 21.00 | 533.5 | 1.56 | 40 | 1.25 | 32.5 | 16 | 1-1/8 | 5.75 | 6.25 |
| 20 | 500 | 27.50 | 700 | 25.00 | 635 | 23.00 | 584 | 1.69 | 43 | 1.25 | 32.5 | 20 | 1-1/8 | 6.25 | 6.75 |
| 24 | 550 | 32.00 | 815 | 29.50 | 749.5 | 27.25 | 692 | 1.88 | 48 | 1.38 | 35.5 | 20 | 1-1/4 | 6.75 | 7.25 |
| 26 | 600 | 34.25 | 870 | 31.75 | 806.5 | 29.50 | 749 | 2.69 | 68 | 1.38 | 35.5 | 24 | 1-1/4 | - | - |
| 28 | 650 | 36.50 | 927 | 34.00 | 864 | 31.50 | 800 | 2.81 | 72 | 1.38 | 35.5 | 28 | 1-1/4 | - | - |
| 30 | 700 | 38.75 | 985 | 36.00 | 915 | 33.75 | 857 | 2.94 | 75 | 1.38 | 35.5 | 28 | 1-1/4 | - | - |
| 32 | 750 | 41.75 | 1060 | 38.50 | 978 | 36.00 | 915 | 3.18 | 81 | 1.62 | 41 | 28 | 1-1/2 | - | - |
| 34 | 800 | 43.75 | 1112 | 40.50 | 1029 | 38.00 | 965 | 3.25 | 83 | 1.62 | 41 | 32 | 1-1/2 | - | - |
| 36 | 850 | 46.00 | 1168 | 42.75 | 1086 | 40.25 | 1022 | 3.44 | 88 | 1.62 | 41 | 32 | 1-1/2 | - | - |
Flanged ends dimensions~~~~Class 300Lb
| NPS | DN | D | D1 | D2 | b | d | Stub Bolt | Bolt Length | |||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | Num | Diam. | RF | R&G |
| 2 | 50 | 6.50 | 165 | 5.00 | 127 | 3.62 | 92 | 0.88 | 22.5 | 0.75 | 18 | 8 | 5/8 | 3.50 | 4.00 |
| 2-1/2 | 65 | 7.50 | 190 | 5.88 | 149 | 4.12 | 105 | 1.00 | 25.5 | 0.88 | 22 | 8 | 3/4 | 4.00 | 4.50 |
| 3 | 80 | 8.25 | 210 | 6.62 | 168.5 | 5.00 | 127 | 1.12 | 29 | 0.88 | 22 | 8 | 3/4 | 4.25 | 4.75 |
| 4 | 100 | 10.00 | 255 | 7.88 | 200 | 6.19 | 157.5 | 1.25 | 32 | 0.88 | 22 | 8 | 3/4 | 4.50 | 5.00 |
| 6 | 150 | 12.50 | 320 | 10.62 | 270 | 8.50 | 216 | 1.44 | 37 | 0.88 | 22 | 12 | 3/4 | 4.75 | 5.50 |
| 8 | 200 | 15.00 | 380 | 13.00 | 330 | 10.62 | 270 | 1.62 | 41.5 | 1.00 | 26 | 12 | 7/8 | 5.50 | 6.00 |
| 10 | 250 | 17.50 | 445 | 15.25 | 387.5 | 12.75 | 324 | 1.88 | 48 | 1.12 | 29.5 | 16 | 1 | 6.25 | 6.75 |
| 12 | 300 | 20.50 | 520 | 17.75 | 451 | 15.00 | 381 | 2.00 | 51 | 1.25 | 32.5 | 16 | 1-1/8 | 6.75 | 7.25 |
| 14 | 350 | 23.00 | 585 | 20.25 | 514.5 | 16.25 | 413 | 2.12 | 54 | 1.25 | 32.5 | 20 | 1-1/8 | 7.00 | 7.50 |
| 16 | 400 | 25.50 | 650 | 22.50 | 571.5 | 18.50 | 470 | 2.25 | 57.5 | 1.38 | 32.5 | 20 | 1-1/4 | 7.50 | 8.00 |
| 18 | 450 | 28.00 | 710 | 24.75 | 628.5 | 21.00 | 533.5 | 2.38 | 60.5 | 1.38 | 32.5 | 24 | 1-1/4 | 7.75 | 8.25 |
| 20 | 500 | 30.50 | 775 | 27.00 | 686 | 23.00 | 584 | 2.50 | 63.5 | 1.38 | 32.5 | 24 | 1-1/4 | 8.00 | 8.75 |
| 24 | 550 | 36.00 | 915 | 32.00 | 813 | 27.25 | 692 | 2.75 | 70 | 1.62 | 42 | 24 | 1-1/2 | 90.00 | 10.0 |
| 26 | 600 | 38.25 | 972 | 34.50 | 876 | 29.50 | 749 | 3.12 | 79.5 | 1.75 | 44.5 | 28 | 1-5/8 | - | - |
| 28 | 650 | 40.75 | 1035 | 37.00 | 940 | 31.50 | 800 | 3.38 | 86 | 1.75 | 44.5 | 28 | 1-5/8 | - | - |
| 30 | 700 | 43.00 | 1092 | 39.25 | 997 | 33.75 | 857 | 3.62 | 92 | 1.88 | 48 | 28 | 1-3/4 | - | - |
| 32 | 750 | 45.25 | 1150 | 41.50 | 1054 | 36.00 | 915 | 3.88 | 98.5 | 2.00 | 51 | 28 | 1-7/8 | - | - |
| 34 | 800 | 47.50 | 1207 | 43.50 | 1105 | 38.00 | 965 | 4.00 | 102 | 2.00 | 51 | 28 | 1-7/8 | - | - |
| 36 | 850 | 50.00 | 1270 | 46.00 | 1169 | 40.25 | 1022 | 4.12 | 105 | 2.12 | 54 | 32 | 2 | - | - |
ANSI CLASS 600/900Lb
Note:
1.NPS 24~and smaller by ANSI B16.5,NPS 26 and larger by MSS SP-44.
2.Class 600 and Class 900 flange lowest thickness barring 0.25 inch convexity.
Flanged ends dimensions~~~~Class 600Lb
| NPS | DN | D | D1 | D2 | b | d | Stub Bolt | Bolt Length | |||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | Num | Diam. | RF | R&G |
| 2 | 50 | 6.50 | 165 | 5.00 | 127 | 3.62 | 92 | 1.00 | 25.5 | 0.75 | 18 | 8 | 5/8 | 4.25 | 4.25 |
| 2-1/2 | 65 | 7.50 | 190 | 5.88 | 149 | 4.12 | 105 | 1.12 | 29 | 0.88 | 22 | 8 | 3/4 | 4.75 | 4.75 |
| 3 | 80 | 8.25 | 210 | 6.62 | 168.5 | 5.00 | 127 | 1.25 | 32 | 0.88 | 22 | 8 | 3/4 | 5.00 | 5.00 |
| 4 | 100 | 10.75 | 275 | 8.50 | 216 | 6.19 | 157.5 | 1.50 | 38.5 | 1.00 | 26 | 8 | 7/8 | 5.75 | 5.75 |
| 6 | 150 | 14.00 | 355 | 11.50 | 292 | 8.50 | 216 | 1.88 | 48 | 1.12 | 29.5 | 12 | 1 | 6.75 | 6.75 |
| 8 | 200 | 16.50 | 420 | 13.75 | 349 | 10.62 | 270 | 2.19 | 55.5 | 1.25 | 32.5 | 12 | 1-1/8 | 7.50 | 7.75 |
| 10 | 250 | 20.00 | 510 | 17.00 | 432 | 12.75 | 324 | 2.50 | 63.5 | 1.38 | 35.5 | 16 | 1-1/4 | 8.50 | 8.50 |
| 12 | 300 | 22.00 | 560 | 19.25 | 489 | 15.00 | 381 | 2.62 | 67 | 1.38 | 35.5 | 20 | 1-1/4 | 8.75 | 8.75 |
| 14 | 350 | 23.75 | 605 | 20.75 | 527 | 16.25 | 413 | 2.75 | 70 | 1.50 | 39 | 20 | 1-3/8 | 9.25 | 9.25 |
| 16 | 400 | 27.00 | 685 | 23.75 | 603 | 18.50 | 470 | 3.00 | 76.5 | 1.62 | 42 | 20 | 1-1/2 | 10.0 | 10.0 |
| 18 | 450 | 29.25 | 745 | 25.75 | 654 | 21.00 | 533.5 | 3.25 | 83 | 1.75 | 45 | 20 | 1-5/8 | 11.0 | 11.0 |
| 20 | 500 | 32.00 | 815 | 28.50 | 724 | 23.00 | 584 | 3.50 | 89 | 1.75 | 45 | 24 | 1-5/8 | 11.5 | 11.5 |
| 24 | 550 | 37.00 | 940 | 33.00 | 838 | 27.25 | 692 | 4.00 | 102 | 2.00 | 51 | 24 | 1-7/8 | 13.0 | 13.5 |
| 26 | 600 | 40.00 | 1016 | 36.00 | 915 | 29.50 | 749 | 4.25 | 108 | 2.00 | 51 | 28 | 1-7/8 | - | - |
| 28 | 650 | 42.25 | 1073 | 38.00 | 965 | 31.50 | 800 | 4.38 | 111 | 2.12 | 54 | 28 | 2 | - | - |
| 30 | 700 | 44.50 | 1130 | 40.25 | 1022 | 33.75 | 857 | 4.50 | 114 | 2.12 | 54 | 28 | 2 | - | - |
| 32 | 750 | 47.50 | 1194 | 42.50 | 1080 | 36.00 | 915 | 4.62 | 117 | 2.38 | 61 | 28 | 2-1/4 | - | - |
| 34 | 800 | 49.00 | 1245 | 44.50 | 1130 | 38.00 | 965 | 4.77 | 121 | 2.38 | 61 | 28 | 2-1/4 | - | - |
| 36 | 850 | 51.75 | 1315 | 47.00 | 1194 | 40.25 | 1022 | 4.88 | 124 | 2.62 | 67 | 28 | 2-1/2 | - | - |
Flanged ends dimensions~~~~Class 900Lb
| NPS | DN | D | D1 | D2 | b | d | Stub Bolt | Bolt Length | |||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | Num | Diam. | RF | R&G |
| 2 | 50 | 8.50 | 215 | 6.50 | 165 | 3.62 | 92 | 1.50 | 38.5 | 1.00 | 26 | 8 | 7/8 | 5.75 | 5.75 |
| 2-1/2 | 65 | 9.62 | 245 | 7.50 | 190.5 | 4.12 | 105 | 1.62 | 41.5 | 1.12 | 29.5 | 8 | 1 | 6.25 | 6.25 |
| 3 | 80 | 9.50 | 240 | 7.50 | 190.5 | 5.00 | 127 | 1.50 | 38.5 | 1.00 | 26 | 8 | 7/8 | 5.75 | 5.75 |
| 4 | 100 | 11.50 | 290 | 9.25 | 235 | 6.19 | 157.5 | 1.75 | 44.5 | 1.25 | 32.5 | 8 | 1-1/8 | 6.75 | 6.75 |
| 6 | 150 | 15.50 | 380 | 12.50 | 317.5 | 8.50 | 216 | 2.19 | 56 | 1.25 | 32.5 | 12 | 1-1/8 | 7.50 | 7.50 |
| 8 | 200 | 18.50 | 470 | 15.50 | 393.5 | 10.62 | 270 | 2.50 | 63.5 | 1.50 | 39 | 12 | 1-3/8 | 8.75 | 8.75 |
| 10 | 250 | 21.50 | 545 | 18.50 | 470 | 12.75 | 324 | 2.75 | 70 | 1.50 | 39 | 16 | 1-3/8 | 9.25 | 9.25 |
| 12 | 300 | 24.00 | 610 | 21.00 | 533.5 | 15.00 | 381 | 3.12 | 79.5 | 1.50 | 39 | 20 | 1-3/8 | 10.0 | 10.0 |
| 14 | 350 | 25.25 | 640 | 22.00 | 559 | 16.25 | 413 | 3.38 | 86 | 1.62 | 42 | 20 | 1-1/2 | 11.0 | 11.0 |
| 16 | 400 | 27.75 | 705 | 24.25 | 616 | 18.50 | 470 | 3.50 | 89 | 1.75 | 45 | 20 | 1-5/8 | 11.5 | 11.5 |
| 18 | 450 | 31.00 | 785 | 27.00 | 686 | 21.00 | 533.5 | 4.00 | 102 | 2.00 | 51 | 20 | 1-7/8 | 13.0 | 13.5 |
| 20 | 500 | 33.75 | 855 | 29.50 | 749.5 | 23.00 | 584 | 4.25 | 108 | 2.12 | 55 | 20 | 2 | 14.0 | 14.5 |
| 24 | 550 | 41.00 | 1040 | 35.50 | 901.5 | 27.25 | 692 | 5.50 | 140 | 2.62 | 68 | 20 | 1-1/2 | 17.5 | 18.0 |