DIMS and WEIGHTS

DIMS and WEIGHTS

Satisfying Customer Demands since 1986

Hindon Flange provides the following series of individual pages in HTML and PDF format that contain flange dimensions of the standard flanges we provide. The information in these pages was compiled from industry sources which Hindon Flange and Fitting Supply believes to be reliable. Hindon Flange and Fitting Supply does not guarantee the accuracy of this data.

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Weld Neck Forged Flange

Threaded Forged Flange

Lap Joint Forged Flange

Socket Weld Forged Flange

Blind Forged Flange

Slip on Forged Flange

Series a 400, 600 & 900 Weld Neck Flange

Series a 400, 600 & 900 Blind Flange

Series a 150 & 300 Weld Neck Flange

Series a 150 &300 Blind Flange

Class 125 Light Weight Slip on Flange

Class 125 & 150 Slip on Flange

Class 125 Weld Neck Flange

Class 250 Slip on Flange

Class 250 Weld Neck Flange

Class 300 Weld Neck Orifice Flange

Slip on Orifice Flange

Threaded Orifice Flange

Class 400, 600, 900, 1500 & 2500 Weld Neck Orifice Flange

Alternate Flange Facings for 150, 300, 400, 600, 900, 1500 and 2500 lb. Flanges

Nominal Size        (in.) RF, LJ, Large Male and Large Tongue Small Male      (3) Small Tongue ID of Large and Small Tongue Large Female and Large Groove Small Female (3) Small Groove ID of Large and Small Groove Raised Face 150 and 300 Pound Standards (2) RF, Large and Small Male and Tongue 400, 600, 900, 1500, & 2500 lb. Standards (2) Depth of Groove or Female
R S T U W X Y Z
 1/2 1.38 0.72 1.38 1.00 1.44 0.78 1.44 0.94 0.06 0.25 0.19
 3/4 1.69 0.94 1.69 1.31 1.75 1.00 1.75 1.25 0.06 0.25 0.19
1 2.00 1.19 1.88 1.50 2.06 1.25 1.94 1.44 0.06 0.25 0.19
1 1/4 2.50 1.50 2.25 1.88 2.56 1.56 2.31 1.81 0.06 0.25 0.19
1 1/2 2.88 1.75 2.50 2.12 2.94 1.81 2.56 2.06 0.06 0.25 0.19
2 3.62 2.25 3.25 2.88 3.69 2.31 3.31 2.81 0.06 0.25 0.19
2 1/2 4.12 2.69 3.75 3.38 4.19 2.75 3.81 3.31 0.06 0.25 0.19
3 5.00 3.31 4.62 4.25 5.06 3.38 4.69 4.19 0.06 0.25 0.19
3 1/2 5.50 3.81 5.12 4.75 5.56 3.88 5.19 4.69 0.06 0.25 0.19
4 6.19 4.31 5.69 5.19 6.25 4.38 5.75 5.12 0.06 0.25 0.19
5 7.31 5.38 6.81 6.31 7.38 5.44 6.88 6.25 0.06 0.25 0.19
6 8.50 6.38 8.00 7.50 8.56 6.44 8.06 7.44 0.06 0.25 0.19
8 10.62 8.38 10.00 9.38 10.69 8.44 10.06 9.31 0.06 0.25 0.19
10 12.75 10.50 12.00 11.25 12.81 10.56 12.06 11.19 0.06 0.25 0.19
12 15.00 12.50 14.25 13.50 15.06 12.56 14.31 13.44 0.06 0.25 0.19
14 16.25 13.75 15.50 14.75 16.31 13.81 15.56 14.69 0.06 0.25 0.19
16 18.50 15.75 17.62 16.75 18.56 15.81 17.69 16.69 0.06 0.25 0.19
18 21.00 17.75 20.12 19.25 21.06 17.81 20.19 19.19 0.06 0.25 0.19
20 23.00 19.75 22.00 21.00 23.06 19.81 22.06 20.94 0.06 0.25 0.19
24 27.25 23.75 26.25 25.25 27.31 23.81 26.31 25.19 0.06 0.25 0.19
  • Regular facing for 150 and 300 lb. Steel flanged fittings and flange standards is a 1/16 inch raised face included in the minimum flange thickness. A 1/16 inch raised face is also permitted on the 400, 600, 900, 1500, and 2500 Lb. Flange standards, but it must be added to the minimum flange thickness.
  • Regular facing for 400, 600, 900, 1500, and 2500 lb. Flange standards is a ¼ inch raised face not included in minimum flange thickness dimensions.
  • Care should be taken in the use of joints of these dimensions, (they apply particularly on lines where the joint is made on the end of pipe) to insure that pipe used is thick enough to permit sufficient bearing surface to prevent crushing the gasket. Threaded companion flanges are furnished with plain face and are threaded with American Standard Locknut Thread.

PADDLE BLANK TYPE 1

PADDLE BLANK TYPE 2

SPECTACLE BLIND TYPE 3

SPECTACLE BLIND TYPE 4

INTERMEDIATE BARREL

INTERMEDIATE BARREL

INTERMEDIATE BARREL

INTERMEDIATE BARREL

INTERMEDIATE BARREL

INTERMEDIATE BARREL

ANSI B16.5 -½”-24″ Forged Flanges
Approximate Weight List (lbs.)
CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
150 lb ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268
300 lb ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1 3 3 3 3 4 4
4.5 4.5 4 4.5 6 5
6.5 6.5 6 6.5 7 7
2 7 7 7 7 8 9
10 10 10 10 12 12
3 13 14 13 14.5 16 18
17 17 17 17 21 20
4 23.5 24 22 24 28 26.5
5 29 31 28 28 37 36
6 39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580

 

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
400 lb ½ 2 2 2 2 2 3
¾ 3 3 3 3 3 3.5
1 3.5 3.5 3.5 3.5 4 4
4.5 4.5 4.5 4.5 6 4.5
6.5 6.5 6.5 6.5 8 8
2 8 8 8 8 10 10
12 12 12 11 15 14
3 15 15 15 14 20 18
21 21 21 20 29 26
4 26 26 26 25 33 35
5 31 31 31 29 44 43
6 44 44 44 42 61 57
8 67 67 67 64 100 89
10 91 91 91 110 155 125
12 130 130 130 152 226 175
14 191 191 191 210 310 233
16 253 253 253 280 398 295
18 310 310 310 345 502 360
20 378 378 378 420 621 445
22 405 405 405 455 720 505
24 539 539 539 615 936 640
600 lb ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1 4 4 4 4 4 4
5 5 5 5 6 6
7 7 7 7 8 8
2 9 9 9 9 10 12
13 13 13 12 15 18
3 16 16 16 15 20 23
21 21 21 20 29 26
4 37 37 37 36 41 42
5 63 63 63 63 68 68
6 80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977

 

CLASS Nominal Pipe Size  Slip On  Threaded Socket Weld Lap Joint Blind Weld Neck
900 lb ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 7.5 7.5 7.5 7.5 9 8.5
10 10 10 10 10 10
14 14 14 14 14 14
2 22 22 22 21 25 24
31 31 31 25 32 31
3 36 36 36 29 35 36
4 53 53 53 51 54 53
5 83 83 83 81 87 86
6 110 110 110 105 115 110
8 172 172 172 190 200 187
10 245 245 245 277 290 268
12 326 326 326 371 415 372
14 400 400 400 415 520 562
16 459 459 459 488 619 685
18 647 647 647 670 880 924
20 792 792 792 868 1107 1164
24 1480 1480 1480 1659 2099 2107
1500 lb ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 8 8 8 8 9 9
10 10 10 10 10 10
14 14 14 14 14 14
2 25 25 25 25 25 25
36 36 36 35 35 36
3 48 48 48 47 48 48
4 73 73 73 75 73 73
5 132 132 132 140 140 132
6 165 165 165 170 160 165
8 260 260 260 286 302 275
10 436 436 436 485 510 455
12 667 667 667 749 775 690
14 940 940 940 890 975 940
16 1250 1250 1250 1250 1300 1250
18 1625 1625 1625 1475 1750 1625
20 2050 2050 2050 1775 2225 2050
24 2825 2825 2825 2825 3625 3325
2500 lb ½ .. 7 .. 7 7 8
¾ .. 9 .. 8 10 9
1 .. 12 .. 12 12 13
.. 18 .. 17 18 20
.. 25 .. 24 25 28
2 .. 38 .. 37 39 42
.. 55 .. 53 56 52
3 .. 83 .. 80 86 94
4 .. 127 .. 122 133 146
5 .. 210 .. 204 223 244
6 .. 323 .. 314 345 378
8 .. 485 .. 471 533 576
10 .. 925 .. 897 1025 1068
12 .. 1300 .. 1262 1464 1608

Wall Thicknesses

Wall Thicknesses
Nom Pipe Size OD NOMINAL WALL THICKNESS
Sch 10 Sch 20 Sch 30 STD Wall Sch 40 Sch 60 EXT Hvy Sch 80 Sch 100 Sch 120 Sch 140 Sch 160 XX Hvy
½ 0.840 0.083 …. …. 0.109 0.109 …. 0.147 0.147 …. …. …. 0.188 0.294
¾ 1.050 0.083 …. …. 0.113 0.113 …. 0.154 0.154 …. …. …. 0.219 0.308
1 1.315 0.109 …. …. 0.133 0.133 …. 0.179 0.179 …. …. …. 0.250 0.358
1 ¼ 1.660 0.109 …. …. 0.140 0.140 …. 0.191 0.191 …. …. …. 0.250 0.382
1 ½ 1.900 0.109 …. …. 0.145 0.145 …. 0.200 0.200 …. …. …. 0.281 0.400
2 2.375 0.109 …. …. 0.154 0.154 …. 0.218 0.218 …. …. …. 0.344 0.436
2 ½ 2.875 0.120 …. …. 0.203 0.203 …. 0.276 0.276 …. …. …. 0.375 0.552
3 3.500 0.120 …. …. 0.216 0.216 …. 0.300 0.300 …. …. …. 0.438 0.600
3 ½ 4.000 0.120 …. …. 0.226 0.226 …. 0.318 0.318 …. …. …. …. 0.636
4 4.500 0.120 …. …. 0.237 0.237 …. 0.337 0.337 …. 0.438 …. 0.531 0.674
5 5.563 0.134 …. …. 0.258 0.258 …. 0.375 0.375 …. 0.500 …. 0.625 0.750
6 6.625 0.134 …. …. 0.280 0.280 …. 0.432 0.432 …. 0.562 …. 0.719 0.864
8 8.625 0.148 0.250 0.277 0.322 0.322 0.406 0.500 0.500 0.594 0.719 0.812 0.906 0.875
10 10.750 0.165 0.250 0.307 0.365 0.365 0.500 0.500 0.594 0.719 0.844 1.000 1.125 1.000
12 12.750 0.180 0.250 0.330 0.375 0.406 0.562 0.500 0.688 0.844 1.000 1.125 1.312 1.000
14 14.000 0.250 0.312 0.375 0.375 0.438 0.594 0.500 0.750 0.938 1.094 1.250 1.406 ….
16 16.000 0.250 0.312 0.375 0.375 0.500 0.656 0.500 0.844 1.031 1.219 1.438 1.594 ….
18 18.000 0.250 0.312 0.438 0.375 0.562 0.750 0.500 0.938 1.156 1.375 1.562 1.781 ….
20 20.000 0.250 0.375 0.500 0.375 0.594 0.812 0.500 1.031 1.281 1.500 1.750 1.969 ….
22 22.000 0.250 …. …. 0.375 …. …. 0.500 …. …. …. …. …. ….
24 24.000 0.250 0.375 0.562 0.375 0.688 0.969 0.500 1.219 1.531 1.812 2.062 2.344 ….
26 26.000 …. …. …. 0.375 …. …. 0.500 …. …. …. …. …. ….
30 30.000 0.312 0.500 0.625 0.375 …. …. 0.500 …. …. …. …. …. ….
36 36.000 0.312 0.500 0.625 0.375 0.750 …. 0.500 …. …. …. …. …. ….
40 40.000 …. …. …. 0.375 …. …. 0.500 …. …. …. …. …. ….
42 42.000 …. …. …. 0.375 …. …. 0.500 …. …. …. …. …. ….
48 48.000 …. …. …. 0.375 …. …. 0.500 …. …. …. …. …. ….

 

Dimensions are in inches.

  • Light Wall thicknesses are indentical to stainless steel Schedule 10S in sizes through 12″, and to Schedule 10 sizes 14″, and larger.
  • Standard Wall thicknesses are idential to stainless steel Schedule 40S in sizes though 10″.
  • Extra Heavy Wall thicknesses are identical to stainless steel Schedule 80S in sizes through 8″.
  • Other types, sizes, and thicknesses of flanges can be provided to meet application.
  • Stocked and manufactured in carbon steel, stainless steel, and vaiety of other metals and alloy.
  • Inside pipe diameters are provide on the following page.

Satisfying Customer Demands since 1986

A Quick Note on B16.47 ASME has incorporated most of the MSS-SP44 specification into B16.47 Series A and most of the API 605 Specification into B16.47 series B. They have also added Blinds to these two specs. You may note that these specs include only Weld Necks and Blinds. For Slip-On’s over 24″ you must refer to either Industry Standard (which are not automatically covered by ASME) or Boiler Code Flanges. If you need help deciding which flange best suits your application feel free to contact us. Texas Flange

Bolt and Stud Dimensions ASME B16.5

Bolt and Stud Dimensions
ASME B16.5
Nominal Pipe Size 150 LB. Flanges 300 LB. Flanges 600 LB. Flanges
# Bolts or Studs Dia of Bolts or Studs  Length of Stud # Bolts or Studs Dia of Bolts or Studs  Length of Stud # Bolts or Studs Dia of Bolts or Studs  Length of Stud
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
 1/2 4 0.50 2-1/4 4 0.50 2-1/2 3 4 0.50 3 3
 3/4 4 0.50 2-1/2 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4
Nominal Pipe Size 900 LB. Flanges 1500 LB. Flanges 2500 LB. Flanges
# Bolts or Studs Dia of Bolts or Studs  Length of Stud # Bolts or Studs Dia of Bolts or Studs  Length of Stud # Bolts or Studs Dia of Bolts or Studs  Length of Stud
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
 1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
 3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 12-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2
DIMENSIONS OF RING-JOINT FACINGS 
  Nominal Pipe Size  Groove Dimensions       Diameter of Raised Portion K 
150 PSI 300 PSI 400 PSI 600 PSI 900 PSI 1500 PSI 2500 PSI Groove #  Pitch  Dia Depth  Width  Radius at Bottom 150 PSI 300  400 600 PSI 900 PSI 1500 PSI 2500 PSI Depth 
P E F R E
…. 1/2 …. 1/2 …. …. …. R11 1-11/32 7/32 9/32 1/32 …. 2 …. …. …. 7/32
…. …. …. …. …. 1/2 …. 12 1-9/16 1/4 11/32 1/32 …. …. 2-3/8 2-3/8 …. 1/4
…. 3/4 …. 3/4 …. …. 1/2 13 1-11/16 1/4 11/32 1/32 …. 2-1/2 …. …. 2-9/16 1/4
…. …. …. …. …. 3/4 …. 14 1-3/4 1/4 11/32 1/32 …. …. 2-5/8 2-5/8 …. 1/4
1 …. …. …. …. …. …. 15 1-7/8 1/4 11/32 1/32 2-1/2 …. …. …. …. 1/4
…. 1 …. 1 …. 1 3/4 16 2 1/4 11/32 1/32 …. 2-3/4 2-13/16 2-13/16 2-7/8 1/4
1-1/4 …. …. …. …. …. …. 17 2-1/4 1/4 11/32 1/32 2-7/8 …. …. …. …. 1/4
…. 1-1/4 …. 1-1/4 …. 1-1/4 1 18 2-3/8 1/4 11/32 1/32 …. 3-1/8 3-3/16 3-3/16 3-1/4 1/4
1-1/2 …. …. …. …. …. …. 19 2-9/16 1/4 11/32 1/32 3-1/4 …. …. …. …. 1/4
…. 1-1/2 …. 1-1/2 …. 1-1/2 …. 20 2-11/16 1/4 11/32 1/32 …. 3-9/16 3-5/8 3-5/8 …. 1/4
…. …. …. …. …. …. 1-1/4 21 2-27/32 5/16 15/32 1/32 …. …. …. …. 4 5/16
2 …. …. …. …. …. …. 22 3-1/4 1/4 11/32 1/32 4 …. …. …. …. 1/4
…. 2 …. 2 …. …. 1-1/2 23 3-1/4 5/16 15/32 1/32 …. 4-1/4 …. …. 4-1/2 5/16
…. …. …. …. …. 2 …. 24 3-3/4 5/16 15/32 1/32 …. …. 4-7/8 4-7/8 …. 5/16
2-1/2 …. …. …. …. …. …. 25 4 1/4 11/32 1/32 4-3/4 …. …. …. …. 1/4
…. 2-/12 …. 2-1/2 …. …. 2 26 4 5/16 15/32 1/32 …. 5 …. …. 5-1/4 5/16
…. …. …. …. …. 2-1/2 …. 27 4-1/4 5/16 15/32 1/32 …. …. …. 5-3/8 …. 5/16
…. …. …. …. …. …. 2-1/2 28 4-3/8 3/8 17/32 1/16 …. …. …. …. 5-7/8 3/8
3 …. …. …. …. …. …. 29 4-1/2 1/4 11/32 1/32 5-1/4 …. …. …. …. 1/4
…. …. …. …. …. …. …. 30 4-5/8 5/16 15/32 1/32 …. …. …. …. …. 5/16
…. 3 …. 3 3 …. …. 31 4-7/8 5/16 15/32 1/32 …. 5-3/4 6-1/8 …. …. 5/16
…. …. …. …. …. …. 3 32 5 3/8 17/32 1/16 …. …. …. …. 6-5/8 3/8
3-1/2 …. …. …. …. …. …. 33 5-3/16 1/4 11/32 1/32 6-1/16 …. …. …. …. 1/4
…. 3-1/2 …. 3-1/2 …. …. …. 34 5-3/16 5/16 15/32 1/32 …. 6-1/4 …. …. …. 5/16
…. …. …. …. …. 3 …. 35 5-3/8 5/16 15/32 1/32 …. …. …. 6-5/8 …. 5/16
4 …. …. …. …. …. …. 36 5-7/8 1/4 11/32 1/32 6-3/4 …. …. …. …. 1/4
…. 4 4 4 4 …. …. 37 5-7/8 5/16 15/32 1/32 …. 6-7/8 7-1/8 …. …. 5/16
…. …. …. …. …. …. 4 38 6-3/16 7/16 21/32 1/16 …. …. …. …. 8 7/16
…. …. …. …. …. 4 …. 39 6-3/8 5/16 15/32 1/32 …. …. …. 7-5/8 …. 5/16
5 …. …. …. …. …. …. 40 6-3/4 1/4 11/32 1/32 7-5/8 …. …. …. …. 1/4
…. 5 5 5 5 …. …. 41 7-1/8 5/16 15/32 1/32 …. 8-1/4 8-1/2 …. …. 5/16
…. …. …. …. …. …. 5 42 7-1/2 1/2 25/32 1/16 …. …. …. 9-1/2 1/2
6 …. …. …. …. …. …. 43 7-5/8 1/4 11/32 1/32 8-5/8 …. …. …. …. 1/4
…. …. …. …. …. 5 …. 44 7-5/8 5/16 15/32 1/32 …. …. …. 9 …. 5/16
…. 6 6 6 6 …. …. 45 8-5/16 5/16 15/32 1/32 …. 9-1/2 9-1/2 …. …. 5/16

DIMENSIONS OF RING-JOINT FACINGS

  Nominal Pipe Size  Groove Dimensions       Diameter of Raised Portion K 
150 PSI 300 PSI 400 PSI 600 PSI 900 PSI 1500 PSI 2500 PSI Groove # Pitch  Dia Depth Width Radius at Bottom 150 PSI 300  400 600 PSI 900 PSI 1500 PSI 2500 PSI Depth
P E F R E
…. …. …. …. …. 6 …. R46 8-5/16 3/8 17/32 1/16 …. …. …. 9-3/4 …. 3/8
…. …. …. …. …. …. 6 47 9 1/2 25/32 1/16 …. …. …. …. 11 1/2
8 …. …. …. …. …. …. 48 9-3/4 1/4 11/32 1/32 10-3/4 …. …. …. …. 1/4
…. 8 8 8 8 …. …. 49 10-5/8 5/16 15/32 1/32 …. 11-7/8 12-1/8 …. …. 5/16
…. …. …. …. 8 …. 50 10-5/8 7/16 21/32 1/16 …. …. …. 12-1/2 …. 7/16
…. …. …. …. …. …. 8 51 11 9/16 29/32 1/16 …. …. …. …. 13-3/8 9/16
10 …. …. …. …. …. …. 52 12 1/4 11/32 1/32 13 …. …. …. …. 1/4
…. 10 10 10 10 …. …. 53 12-3/4 5/16 15/32 1/32 …. 14 14-1/4 …. …. 5/16
…. …. …. …. …. 10 …. 54 12-3/4 7/16 21/32 1/16 …. …. …. 14-5/8 …. 7/16
…. …. …. …. …. …. 10 55 13-1/2 11/16 1-3/16 3/32 …. …. …. …. 16-3/4 11/16
12 …. …. …. …. …. …. 56 15 1/4 11/32 1/32 16 …. …. …. …. 1/4
…. 12 12 12 12 …. …. 57 15 5/16 15/32 1/32 …. 16-1/4 16-1/2 …. …. 5/16
…. …. …. …. …. 12 …. 58 15 9/16 29/32 1/16 …. …. …. 17-1/4 …. 9/16
14 …. …. …. …. …. …. 59 15-5/8 1/4 11/32 1/32 16-3/4 …. …. …. …. 1/4
…. …. …. …. …. …. 12 60 16 11/16 1-5/16 3/32 …. …. …. …. 19-1/2 11/16
…. 14 14 14 …. …. …. 61 16-1/2 5/16 15/32 1/32 …. 18 …. …. …. 5/16
…. …. …. …. 14 …. …. 62 16-1/2 7/16 21/32 1/16 …. …. 18-3/8 …. …. 7/16
…. …. …. …. …. 14 …. 63 16-1/2 5/8 1-1/16 3/32 …. …. …. 19-1/4 …. 5/8
16 …. …. …. …. …. …. 64 17-7/8 1/4 11/32 1/32 19 …. …. …. …. 1/4
…. 16 16 16 …. …. …. 65 18-1/2 5/16 15/32 1/32 …. 20 …. …. …. 5/16
…. …. …. …. 16 …. …. 66 18-1/2 7/16 21/32 1/16 …. …. 20-5/8 …. …. 7/16
…. …. …. …. …. 16 …. 67 18-1/2 11/16 1-3/16 3/32 …. …. …. 21-1/2 …. 11/16
18 …. …. …. …. …. …. 68 20-3/8 1/4 11/32 1/32 21-1/2 …. …. …. …. 1/4
…. 18 18 18 …. …. …. 69 21 5/16 15/32 1/32 …. 22-5/8 …. …. …. 5/16
…. …. …. …. 18 …. …. 70 21 1/2 25/32 1/16 …. …. 23-3/8 …. …. 1/2
…. …. …. …. …. 18 …. 71 21 11/16 1-3/16 3/32 …. …. …. 24-1/8 …. 11/16
20 …. 20 …. …. …. …. 72 22 1/4 11/33 1/32 23-1/2 …. …. …. …. 1/4
…. 20 …. 20 …. …. …. 73 23 3/8 17/32 1/16 …. 25 …. …. …. 3/8
…. …. …. …. 20 …. …. 74 23 1/2 25/32 1/16 …. …. 25-1/2 …. …. 1/2
…. …. …. …. …. 20 …. 75 23 11/16 1-5/16 3/32 …. …. 26-1/2 …. 11/16
24 …. …. …. …. …. …. 76 26-1/2 1/4 11/32 1/32 28 …. …. …. …. 1/4
…. 24 24 24 …. …. …. 77 27-1/4 7/16 21/32 1/16 …. 29-1/2 …. …. …. 7/16
…. …. …. …. 24 …. …. 78 27-1/4 5/8 1-1/16 3/32 …. …. 30-3/8 …. …. 5/8
…. …. …. …. …. 24 …. 79 27-1/4 13/16 17/16 3/32 …. …. …. 31-1/4 …. 13/16
Dimensions in inches.  Raised face height matches depth of groove.

Dimensional Tolerances B16.5 – 2003

Threaded, Socket-Welding, Slip-On, Lap Joint, and Blind Weld Neck
Outside Diameter (1) when the O.D. is 24″ or less ±1/16″ Outside Diameter (1) when the O.D. is 24″ or less ±1/16″
when the O.D. is over 24″ ±1/8″ when the O.D. is over 24″ ±1/8″
Inside Diameter Threaded within limites on boring gauge Inside Diameter = 10″ ±1/32″
Socket-Welding, Slip-On and Lap-Joint = 10″+1/32″, -0″   =12″+1/16″,-0″ 12″ through 18″ ±1/16″
=  20″ +1/8″                         -1/16″
Outside Diameter of Hub (1) = 12″    +3/32″                                          -1/16″ Diameter of Contact Face 1/16″ Raised Face ±1/32″
 = 14″ ±1/8″ 1/4″ Raised Face Tongue & Groove Male, Famale ±1/64″
Diameter of Contact Face 1/16″ Raised Face ±1/32″ Diameter of Hub at Base (1) when Hub Base is 24″ or less +1/16″
1/4″ Raised Face Tongue & Groove Male, Famale ±1/64″ when Hub Base is over 24″ ±1/8″
Diameter of Counterbore Same as for Inside Diameter Diameter of Hub at Point of Welding NPS = 5″  +3/32″                                                                            -1/32″
NPS = 6″ +5/32″                       -1/32″
Drilling Bolt Circle ±1/16″ Drilling Bolt Circle ±1/16″
Bolt Hole Spacing ±1/32″ Bolt Hole Spacing ±1/32″
Concentricity of Bolt Circle with Respect to Facing NPS = 2 1/2″               1/32″ max Concentricity of Bolt Circle with Respect to Facing NPS = 2 1/2″               1/32″ max
NPS = 3″                  1/16″ max NPS = 3″                  1/16″ max
Thickness = 18″ +1/8″, -0″ Thickness = 18″ +1/8″, -0″
= 20″ +3/16″,-0″ = 20″ +3/16″,-0″
Length Through the Hub (1) = 18″ +1/8″, -1/32″ Length Through the Hub NPS = 4″ ±1/16″
5 = NPS = 10″ +1/16″, -1/8
=  20″  +3/16″, -1/16″ =  12″ +1/8″, -3/16
  • Tolerances not listed in B16.5-2003

Weld Neck Flange Bores

Weld Neck Flange Bores
Nom Pipe Size OD NOMINAL BORE
Sch Sch Sch STD Sch Sch EXT Sch Sch Sch Sch Sch XX
10 20 30 Wall 40 60 Hvy 80 100 120 140 160 Hvy
½ 0.840 0.674 0.622 0.622 0.546 0.546 0.464 0.252
¾ 1.050 0.884 0.824 0.824 0.742 0.742 0.612 0.434
1 1.315 1.097 1.049 1.049 0.957 0.957 0.815 0.599
1 ¼ 1.660 1.442 1.380 1.380 1.278 1.278 1.160 0.896
1 ½ 1.900 1.682 1.610 1.610 1.500 1.500 1.338 1.100
2 2.375 2.157 2.067 2.067 1.939 1.939 1.687 1.503
2 ½ 2.875 2.635 2.469 2.469 2.323 2.323 2.125 1.771
3 3.500 3.260 3.068 3.068 2.900 2.900 2.624 2.300
3 ½ 4.000 3.760 3.548 3.548 3.364 3.364 2.728
4 4.500 4.260 4.026 4.026 3.826 3.826 3.624 3.438 3.152
5 5.563 5.295 5.047 5.047 4.813 4.813 4.563 4.313 4.063
6 6.625 6.357 6.065 6.065 5.761 5.761 5.501 5.187 4.897
8 8.625 8.329 8.125 8.071 7.981 7.981 7.813 7.625 7.625 7.437 7.187 7.001 6.813 6.875
10 10.750 10.420 10.250 10.136 10.020 10.020 9.750 9.750 9.562 9.312 9.062 8.750 8.500 8.750
12 12.750 12.390 12.250 12.090 12.000 11.938 11.626 11.750 11.374 11.062 10.750 10.500 10.126 10.750
14 14.000 13.500 13.376 13.250 13.250 13.124 12.812 13.000 12.500 12.124 11.812 11.500 11.188
16 16.000 15.500 15.376 15.250 15.250 15.000 14.688 15.000 14.312 13.938 13.562 13.124 12.812
18 18.000 17.500 17.376 17.124 17.250 16.876 16.500 17.000 16.124 15.688 15.250 14.876 14.438
20 20.000 19.500 19.250 19.000 19.250 18.812 18.376 19.000 17.938 17.438 17.000 16.500 16.062
22 22.000 21.500 21.250 21.000
24 24.000 23.500 23.250 22.876 23.250 22.624 22.062 23.000 21.562 20.938 20.376 19.876 19.312
26 26.000 25.250 25.000
30 30.000 29.376 29.000 28.750 29.250 29.000
36 36.000 35.376 35.000 34.750 35.250 34.500 35.000
40 40.000 39.250 39.000
42 42.000 41.250 41.000
48 48.000 47.250 47.000