BN-DS-C15 Machine and stud bolt dimensions for flanges used in the process industry

Details

The dimensions in the below tables are for reference only. For design or other purposes please use the data of the relevant up to date standards.


ANSI B16.5-1981 PN 20 PIPE FLANGES AND FLANGED FITTINGS

TABLE H8 TEMPLATES FOR DRILLING PN 20 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
 LENGTH OF BOLTS L
STUD BOLTS MACHINE BOLTS
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS
2 MM RAISED FACE RING JOINT 2 MM RAISED FACE
DN NPS
15 1/2 90 60.5 16 4 M14 60 - 45
20 3/4 100 70.0 16 4 M14 65 - 50
25 1 110 79.5 16 4 M14 65 80 55
32 11/4 120 89.0 16 4 M14 70 80 55
40 11/2 130 98.5 16 4 M14 70 95 60
                   
50 2 150 120.5 20 4 M18 80 95 65
65 21/2 180 139.5 20 4 M18 90 100 75
80 3 190 152.5 20 4 M18 90 105 75
- 31/2 215 178.0 20 8 M18 90 105 75
100 4 230 190.5 20 8 M18 90 105 75
                   
125 5 255 216.0 22 8 M20 90 110 80
150 6 280 241.5 22 8 M20 100 115 85
200 8 345 298.5 22 8 M20 110 120 90
250 10 405 362.0 26 12 M24 115 130 95
300 12 485 432.0 26 12 M24 120 135 100
                   
350 14 535 476.0 30 12 M27 130 150 110
400 16 600 540.0 30 16 M27 135 150 115
450 18 635 578.0 33 16 M30 150 160 125
500 20 700 635.0 33 20 M30 160 170 135
600 24 815 749.0 36 20 M33 175 185 145
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 PN 50 PIPE FLANGES AND FLANGED FITTINGS

TABLE H11 TEMPLATES FOR DRILLING PN 50 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
 LENGTH OF BOLTS L
STUD BOLTS MACHINE BOLTS
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 2 MM RAISED FACE RING JOINT 2 MM RAISED FACE
DN NPS
15 1/2 95 66.5 16 4 M14 65 75 55
20 3/4 120 82.5 20 4 M18 75 90 60
25 1 125 89.0 20 4 M18 80 90 65
32 1 1/4 135 98.5 20 4 M18 80 95 65
40 1 1/2 155 114.5 22 4 M20 90 105 75
                   
50 2 165 127.0 20 8 M18 90 105 75
65 2 1/2 190 149.0 22 8 M20 100 115 85
80 3 210 168.5 22 8 M20 110 125 90
- 3 1/2 230 184.0 22 8 M20 110 125 95
100 4 255 200.0 22 8 M20 110 130 95
                   
125 5 280 235.0 22 8 M20 120 135 100
150 6 320 270.0 22 12 M20 125 140 105
200 8 380 330.0 26 12 M24 140 155 110
250 10 445 387.0 30 16 M27 155 170 130
300 12 520 451.0 33 16 M30 170 185 145
                   
350 14 585 514.5 33 20 M30 175 195 150
400 16 650 571.5 36 20 M33 190 205 160
450 18 715 682.5 36 24 M33 195 210 170
500 20 775 686.0 36 24 M33 205 225 180
600 24 915 813.0 42 24 M39 230 255 195
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 CLASS PN68 FLANGES AND FLANGED FITTINGS

TABLE H14 TEMPLATES FOR DRILLING PN 68 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
LENGTH OF STUD BOLTS L
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 7 MM RAISED FACE MALE & FEMALE ALSO TONGUE & GROOVE RING JOINT
DN NPS
15 1/2                
20 3/4                
25 1                
32 1 1/4                
40 1 1/2 USE PN68 DIMENSIONS IN THESE SIZES
                   
50 2                
65 2 1/2                
80 3                
- 3 1/2                
100 4 255 200.0 26 8 M24 140 130 140
125 5 280 235.0 26 8 M24 145 140 150
150 6 320 270.0 26 12 M24 150 145 155
200 8 380 330.0 30 12 M27 170 165 175
250 10 445 387.5 33 16 M30 190 185 195
300 12 520 451.0 36 16 M33 205 195 205
                   
350 14 585 514.5 36 20 M33 210 205 210
400 16 650 571.5 39 20 M36 220 215 225
450 18 710 628.5 39 24 M36 230 220 230
500 20 775 686.0 42 24 M39 245 240 250
600 24 915 813.0 48 24 M45 270 265 280
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 PN 100 PIPE FLANGES AND FLANGED FITTINGS

TABLE H17 TEMPLATES FOR DRILLING PN 100 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
LENGTH OF STUD BOLTS L
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 7 MM RAISED FACE MALE & FEMALE ALSO TONGUE & GROOVE RING JOINT
DN NPS
15 1/2 95 66.5 16 4 M14 80 70 75
20 3/4 120 82.5 20 4 M18 90 80 90
25 1 125 89.0 20 4 M18 90 85 90
32 11/4 135 98.5 20 4 M18 100 90 100
                   
40 11/2 155 114.5 22 4 M20 105 100 105
50 2 165 127.0 20 8 M18 105 100 110
65 21/2 190 149.0 22 8 M20 120 115 125
80 3 210 168.5 22 8 M20 125 120 130
- 31/2 230 184.0 26 8 M24 140 130 140
100 4 275 216.0 26 8 M24 145 140 150
                   
125 5 330 267.0 30 8 M27 165 160 165
150 6 355 292.0 30 12 M27 170 165 175
200 8 420 349.0 33 12 M30 195 185 195
250 10 510 432.0 36 16 M33 215 210 220
300 12 560 489.0 36 20 M33 220 215 225
                   
350 14 605 527.0 39 20 M36 235 230 235
400 16 685 603.0 42 20 M39 255 245 255
450 18 745 654.0 45 20 M42 275 265 275
500 20 815 724.0 45 24 M42 290 280 305
600 24 840 838.0 52 24 M48 330 320 330
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 PN 150 PIPE FLANGES AND FLANGED FITTINGS

TABLE H20 TEMPLATES FOR DRILLING PN 150 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
LENGTH OF STUD BOLTS L
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 7 MM RAISED FACE MALE & FEMALE ALSO TONGUE & GROOVE RING JOINT
DN NPS
15 1/2                
20 3/4                
25 1 1/4                
32 1                
40 1 1/2 USE PN250 DIMENSIONS IN THESE SIZES
50 2                
65 2 1/2                
80 3 240 190.5 26 8 M24 145 140 150
100 4 295 235.0 32 8 M30 170 165 175
                   
125 5 350 279.5 35 8 M33 190 185 195
150 6 380 317.5 32 12 M30 195 185 195
200 8 470 393.5 39 12 M36 220 215 225
250 10 545 470.0 39 16 M36 235 230 235
300 12 610 533.5 39 20 M36 255 250 255
                   
350 14 640 559.0 42 20 M39 275 265 280
400 16 705 616.0 45 20 M42 285 280 295
450 18 785 686.0 52 20 M48 325 320 340
500 20 855 749.5 54 20 M52 345 340 360
600 24 1040 901.5 68 20 M68 435 430 455
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 PN 250 PIPE FLANGES AND FLANGED FITTINGS

TABLE H23 TEMPLATES FOR DRILLING PN 250 FLANGES
1 2 3 4 5 6 7 8 9
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE O
DRILLING
LENGTH OF STUD BOLTS L
DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 7 MM RAISED FACE MALE & FEMALE ALSO TONGUE & GROOVE RING JOINT
DN NPS
15 1/2 120 82.5 22 4 M20 105 100 105
20 3/4 130 89.0 22 4 M20 115 105 115
25 1 150 101.5 26 4 M24 125 120 125
32 1 1/4 160 111.0 26 4 M24 125 120 125
                   
40 1 1/2 180 124.0 30 4 M27 140 135 140
50 2 215 165.0 26 8 M24 145 140 145
65 2 1/2 245 190.5 30 8 M27 160 150 160
80 3 270 203.0 33 8 M30 180 170 180
100 4 310 241.5 36 8 M33 195 190 200
                   
125 5 375 292.0 42 8 M39 250 240 250
150 6 395 317.5 39 12 M36 260 255 265
200 8 485 393.5 45 12 M42 290 285 300 00
250 10 585 482.5 52 12 M48 335 330 345
300 12 675 571.5 56 16 M52 375 370 390
                   
350 14 750 635.0 60 16 M56 405 400 425
400 16 825 705.0 68 16 M64 445 440 470
450 18 915 774.5 76 16 M72 495 485 515
500 20 985 832.0 80 16 M76 540 525 565
600 24 1170 990.500 94 16 M90 615 610 645
DIMENSIONS ARE IN MILLIMETERS

 

ANSI B16.5-1981 PN 420 PIPE FLANGES AND FLANGED FITTINGS

TABLE H26 TEMPLATES FOR DRILLING PN 420 FLANGES
1 2 3 4 5 6 7 8 9
        2.3       4.5
    DRILLING LENGTH OF STUD BOLTS L
NOMINAL SIZE OUTSIDE DIAMETER OF FLANGE DIAMETER OF BOLT CIRCLE DIAMETER OF BOLT HOLES NUMBER OF BOLTS NOMINAL DIAMETER OF BOLTS 7 MM RAISED FACE MALE & FEMALE ALSO TONGUE & RING JOINT
DN NPS O           GROOVE  
15 1/2 135 89.0 22 4 M20 125 115 125
20 3/4 140 95.0 22 4 M20 125 120 125
25 1 160 108.0 26 4 M24 140 130 140
32 1 1/4 185 130.0 30 4 M27 150 145 155
40 1 1/2 205 146.0 33 4 M30 170 165 175
                   
50 2 235 171.5 30 8 M27 175 170 180
65 2 1/2 270 197.0 33 8 M30 195 190 205
80 3 305 228.5 36 8 M33 220 215 230
100 4 355 273.0 42 8 M39 255 245 265
                   
125 5 420 324.0 48 8 M45 300 290 310
150 6 485 368.5 56 8 M52 345 335 355
200 8 550 438.0 56 12 M52 380 375 395
250 10 675 539.5 68 12 M64 485 480 510
300 12 760 619.0 76 12 M72 540 530 560
DIMENSIONS ARE IN MILLIMETERS