Dimension
How do you solve the manufacturing problems associated with an ASME B16.47 flange?
This American standard covers flanges from NPS 26 to 60 and states materials, dimensions, marking, testing, etc. Our company is an ASME B16.47 series B flange supplier in UAE with stringent quality control to enforce compliance and a custom portfolio.
We source products per tolerance norms to optimise the series B weld neck flange performance. The gasket thickness gets measured across the metallic region, excluding fillers.
How does the size of an ASME B16.47 series B flange affect its pressure rating?
Industrial clients acquire these flanges to handle ratings of 75 to 900. An ASME B16.47 Series B slip on flange should use the stated number of bolts and specified diameters.
Note: As the rating increases, the thickness, diameters, and bolting requirements go up.
How does the installation of bolts affect the performance of an ASME B16.47 series A flange?
These flanges are heftier and take more load without leaks. An ASME B16.47 series A flange has larger bolt circle diameters than Series B. So, for instance, you need 28 bolts of 11/4” diameter for a 30-inch flange for ANSI B16.47 series A class 150 flanges.
Table of content
ASME B16.47 Flange
Size
Class
ASTM
ASME
Technical Data
Dimension
Face Type
Coating
ANSI B16.47 Flange Specification
Specifications | ASME B16.47 Flange |
---|---|
Certificate | ISO |
Testing | Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector |
Pressure Class | 150 To 900 |
Methods Of Forging | Casting Forging Rolling Cutting |
Size | NPS 1⁄₂" To NPS 48” |
Supporting Material For Flanges | Gasket/ Ring Joint/ Flanges Bolts |
Schedule | SCH 5S To XXS |
Equipment | Pushing Machine Press machine electric bevelling machine |
Available Packing | Packing In Plywood Box And Plywood Pallet |
Description | Price In US ($) |
---|---|
2 Inch, 600#, BL RF, ASME B16.47, SERIES A | US $1988.17 Per KG |
4 Inch, 600#, BL, RF, ASME B16.47, SERIES A | US $331.39 Per KG |
CL.150 ,SERIES B, B16.47, 750MM-30 DOUBLE FLANGED | US $11369.69 Per KG |
CL.300, 900MM-36 DOUBLE FLANGED, ASME B16.47 | US $26732.31 Per KG |
150#, RF, SCH.STD, WNRF, ANSI B16.47/B | US $1243.55 Per KG |
ASME B16.47, SERIES B, WNRF | US $1456.43 Per KG |
CL.600, SERIES B, ASME B16.47, 750MM-30 DOUBLE FLANGED | US $279479.27 Per KG |
CL.300, SERIES B, B16.47, 900MM-36 DOUBLE FLANGED | US $24153.85 Per KG |
CL.300, B16.47, SERIES B. 750MM-30 DOUBLE FLANGE | US $45067.09 Per KG |
CL.150, SERIES B, 1200MM-48 DOUBLE FLANGED | US $29821.41 Per KG |
ASME B16.47. CL.600. SERIES B. 750MM-30H DOUBLE FLANGED | US $34391.94 Per KG |
CL.600, SERIES B, ANSI B16.47, 800MM-32H DOUBLE FLANGED | US $39821.35 Per KG |
SERIES B, B16.47, CL.600, 800MM-32H DOUBLE FLANGED | US $119464.04 Per KG |
CL.600, SERIES A, ASME B16.47, 750MM-30H DOUBLE FLANGED | US $104001.96 Per KG |
ASME B16.47, CL.300, SERIES B 900MM-36 DOUBLE FLANGED | US $26732.31 Per KG |
Types Of ASME B16.47 Large Diameter Steel Flanges
ASME B16.47 Blind Flange
ASME B16.47 Slip On Flange
ASME B16.47 Weld Neck Flange
ASME B16.47 Series A Socket Weld Flanges
ASME B16.47 Series A Plate Flanges
ASME B16.47 Lap Joint Flanges
ANSI B16.47 RTJ Flanges
ASME B16.47 Series A Flanges
ASME B16.47 Series B Flanges
ASME B16.47 Series A RTJ Flanges
ASME B16.47 Series A Slip On Flanges
ASME B16.47 Large Diameter Flanges
ASME B16 47 Series A Flange Dimensions
NPS | O.D. | (D) | (B) (WNRF) | (B) (BLRF) | (H) | (A) |
26 | 660.4 | 870 | 66.7 68.3 | 66.7 68.3 | 119 120.6 | 676 |
28 | 711.2 | 925 | 69.9 71.5 | 69.9 71.5 | 124 125.6 | 727 |
30 | 762 | 985 | 73.1 74.7 | 73.1 74.7 | 135 136.6 | 781 |
32 | 812.8 | 1060 | 79.4 81 | 79.4 81 | 143 144.6 | 832 |
34 | 863.6 | 1110 | 81 82.6 | 81 82.6 | 148 149.6 | 883 |
36 | 914.4 | 1170 | 88.9 90.5 | 88.9 90.5 | 156 157.6 | 933 |
38 | 965.2 | 1240 | 85.8 87.4 | 85.8 87.4 | 156 157.6 | 991 |
40 | 1016 | 1290 | 88.9 90.5 | 88.9 90.5 | 162 163.6 | 1041 |
42 | 1066.8 | 1345 | 95.3 96.9 | 95.3 96.9 | 170 171.6 | 1092 |
44 | 1117.6 | 1405 | 100.1 101.7 | 100.1 101.7 | 176 177.6 | 1143 |
46 | 1168.4 | 1455 | 101.6 103.2 | 101.6 103.2 | 184 185.6 | 1197 |
48 | 1219.2 | 1510 | 106.4 108 | 106.4 108 | 191 192.6 | 1248 |
50 | 1270 | 1570 | 109.6 111.2 | 109.6 111.2 | 202 203.6 | 1302 |
52 | 1320.8 | 1625 | 114.3 115.9 | 114.3 115.9 | 208 209.6 | 1353 |
54 | 1371.6 | 1685 | 119.1 120.7 | 119.1 120.7 | 214 215.6 | 1403 |
56 | 1422.4 | 1745 | 122.3 123.9 | 122.3 123.9 | 227 228.6 | 1457 |
58 | 1473.2 | 1805 | 127 128.6 | 127 128.6 | 233 234.6 | 1508 |
60 | 1524 | 1855 | 130.2 131.8 | 130.2 131.8 | 238 239.6 | 1559 |
ANSI B16.47 Series A Class 150 Flanges Dimensions
NPS | O.D. | Wall Thickness (Minimum) Of (WNRF) (TF) |
Wall Thickness (Minimum) Of (BLRL)) (TF) |
Through Hub Length Of (Y) |
Hub Base Diameter (X) |
Top Hub Diameter (A |
Diameter Of (R/F) (R) |
Diameter Of Bolt Circle and Drilling | Bolts Holes Number |
26 | 34.25 | 2.63 | 2.63 | 4.69 | 26.62 | 26 | 29.5 | 31.75 | 24 |
28 | 36.5 | 2.75 | 2.75 | 4.88 | 28.62 | 28 | 31.5 | 34 | 28 |
30 | 38.75 | 2.88 | 2.88 | 5.32 | 30.75 | 30 | 33.75 | 36 | 28 |
32 | 41.75 | 3.13 | 3.13 | 5.63 | 32.75 | 32 | 36 | 38.5 | 28 |
34 | 43.75 | 3.19 | 3.19 | 5.82 | 34.75 | 34 | 38 | 40.5 | 32 |
36 | 46 | 3.5 | 3.5 | 6.13 | 36.75 | 36 | 40.25 | 42.75 | 32 |
38 | 48.75 | 3.38 | 3.38 | 6.13 | 39 | 38 | 42.25 | 45.25 | 32 |
40 | 50.75 | 3.5 | 3.5 | 6.38 | 41 | 40 | 44.25 | 47.25 | 36 |
42 | 53 | 3.75 | 3.75 | 6.69 | 43 | 42 | 47 | 49.5 | 36 |
44 | 55.25 | 3.94 | 3.94 | 6.94 | 45 | 44 | 49 | 51.75 | 40 |
46 | 57.25 | 4 | 4 | 7.25 | 47.12 | 46 | 51 | 53.75 | 40 |
48 | 59.5 | 4.19 | 4.19 | 7.5 | 49.12 | 48 | 53.5 | 56 | 44 |
50 | 61.75 | 4.32 | 4.32 | 7.94 | 51.25 | 50 | 55.5 | 58.25 | 44 |
52 | 64 | 4.5 | 4.5 | 8.19 | 53.25 | 52 | 57.5 | 60.5 | 44 |
54 | 66.25 | 4.69 | 4.69 | 8.44 | 55.25 | 54 | 59.5 | 62.75 | 44 |
56 | 68.75 | 4.82 | 4.82 | 8.94 | 57.38 | 56 | 62 | 65 | 48 |
58 | 71 | 5 | 5 | 9.19 | 59.38 | 58 | 64 | 67.25 | 48 |
60 | 73 | 5.13 | 5.13 | 9.38 | 61.38 | 60 | 66 | 69.25 | 52 |
ASME B16.47 Series A Gasket Dimensions
NPS | Gasket Inner Diameter Of (D1) | Gasket Outer Diameter Of (D2) | |||
Class 150 | Class 300 | Class 400 | Class 600 | ||
26 | 660 | 775 | 835 | 832 | 867 |
28 | 711 | 832 | 899 | 892 | 914 |
30 | 762 | 883 | 953 | 946 | 972 |
32 | 813 | 940 | 1006 | 1003 | 1022 |
34 | 864 | 991 | 1057 | 1054 | 1073 |
36 | 914 | 1048 | 1118 | 1118 | 1130 |
38 | 965 | 1111 | 1054 | 1073 | 1105 |
40 | 1016 | 1162 | 1114 | 1127 | 1156 |
42 | 1067 | 1219 | 1165 | 1178 | 1219 |
44 | 1118 | 1276 | 1219 | 1232 | 1270 |
46 | 1168 | 1327 | 1273 | 1289 | 1327 |
48 | 1219 | 1384 | 1324 | 1346 | 1391 |
50 | 1270 | 1435 | 1378 | 1403 | 1448 |
52 | 1321 | 1492 | 1429 | 1454 | 1499 |
54 | 1372 | 1549 | 1492 | 1518 | 1556 |
56 | 1422 | 1607 | 1543 | 1568 | 1613 |
58 | 1473 | 1664 | 1594 | 1619 | 1664 |
60 | 1524 | 1715 | 1645 | 1683 | 1721 |
ASME B16.47 Series A RTJ Flange Dimensions
Ring Type Joint Size in (Inch) | Ring Type Joint Size in (MM) | Outer Diameter Of RTJ | WT Of Ring Type Joint | Outer Diameter Of Hub | Outer Diameter Of WNRF | Lengths Of Weld Neck | Diameter Of R/F | Height Of R/F | PCD | Diametr Of RTJ Pitch | Depth Of Ring Type Joint | RTJ Width |
---|---|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | (J) | (K) | (L) | - |
1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 46 | N/A | N/A | 60.3 | N/A | N/A | N/A |
3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 51 | N/A | N/A | 69.9 | N/A | N/A | N/A |
1 | 25 | 110 | 12.7 | 49 | 33.4 | 54 | 63.5 | 6.35 | 79.4 | 47.63 | 6.35 | 8.74 |
1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 56 | 73 | 6.35 | 88.9 | 57.15 | 6.35 | 8.74 |
1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 60 | 82.5 | 6.35 | 98.4 | 65.07 | 6.35 | 8.74 |
2 | 50 | 150 | 17.5 | 78 | 60.3 | 62 | 102 | 6.35 | 120.7 | 82.55 | 6.35 | 8.74 |
2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 68 | 121 | 6.35 | 139.7 | 101.6 | 6.35 | 8.74 |
3 | 80 | 190 | 22.3 | 108 | 88.9 | 68 | 133 | 6.35 | 152.4 | 114.3 | 6.35 | 8.74 |
3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 70 | 154 | 6.35 | 177.8 | 131.78 | 6.35 | 8.74 |
4 | 100 | 230 | 22.3 | 135 | 114.3 | 75 | 171 | 6.35 | 190.5 | 149.23 | 6.35 | 8.74 |
5 | 125 | 255 | 22.3 | 164 | 141.3 | 87 | 194 | 6.35 | 215.9 | 171.45 | 6.35 | 8.74 |
6 | 150 | 280 | 23.9 | 192 | 168.3 | 87 | 219 | 6.35 | 241.3 | 193.68 | 6.35 | 8.74 |
8 | 200 | 345 | 27 | 246 | 219.1 | 100 | 273 | 6.35 | 298.5 | 247.65 | 6.35 | 8.74 |
10 | 250 | 405 | 28.6 | 305 | 273 | 100 | 330 | 6.35 | 362 | 304.8 | 6.35 | 8.74 |
12 | 300 | 485 | 30.2 | 365 | 323.8 | 113 | 406 | 6.35 | 431.8 | 381 | 6.35 | 8.74 |
14 | 350 | 535 | 33.4 | 400 | 355.6 | 125 | 425 | 6.35 | 476.3 | 396.88 | 6.35 | 8.74 |
16 | 400 | 595 | 35 | 457 | 406.4 | 125 | 483 | 6.35 | 539.8 | 454.03 | 6.35 | 8.74 |
18 | 450 | 635 | 38.1 | 505 | 457.2 | 138 | 546 | 6.35 | 577.9 | 517.53 | 6.35 | 8.74 |
20 | 500 | 700 | 41.3 | 559 | 508 | 143 | 597 | 6.35 | 635 | 558.8 | 6.35 | 8.74 |
24 | 600 | 815 | 46.1 | 663 | 610 | 151 | 711 | 6.35 | 749.3 | 673.1 | 6.35 | 8.74 |
ASME B16 47 Series A Flange Weight
Normal Pipe Size | 150 LB | 300 LB | 600 LB | 900 LB | ||||
(Weld Neck (WN)) | (Blind (BL) | (Weld Neck (WN)) | (Blind (BL) | (Weld Neck (WN)) | (Blind (BL) | (Weld Neck (WN)) | (Blind (BL) | |
22 | 109 | 162 | 204 | 284 | 310 | 437 | - | - |
26 | 154 | 321 | 291 | 477 | 450 | 777 | 890 | 1100 |
28 | 175 | 380 | 352 | 584 | 506 | 909 | 1055 | 1350 |
30 | 204 | 450 | 405 | 685 | 575 | 1074 | 1230 | 1610 |
32 | 254 | 560 | 465 | 793 | 642 | 1253 | 1480 | 1940 |
34 | 273 | 625 | 523 | 919 | 705 | 1427 | 1750 | 2310 |
36 | 321 | 760 | 580 | 1072 | 800 | 1665 | 1997 | 2660 |
38 | 358 | 830 | 324 | 900 | 674 | 1509 | 2000 | 2690 |
40 | 386 | 925 | 391 | 1066 | 725 | 1695 | 2161 | 2950 |
42 | 442 | 1080 | 428 | 1206 | 895 | 2028 | 2379 | 3280 |
44 | 491 | 1230 | 485 | 1378 | 951 | 2246 | 3321 | 3810 |
46 | 525 | 1345 | 559 | 1570 | 1055 | 2543 | 3224 | 4430 |
48 | 580 | 1520 | 597 | 1745 | 1247 | 2951 | 3500 | 4860 |
50 | 624 | 1668 | 674 | 1983 | 1423 | 3381 | - | - |
52 | 689 | 1867 | 728 | 2194 | 1493 | 3682 | - | - |
54 | 760 | 2088 | 871 | 2538 | 1637 | 4091 | - | - |
56 | 845 | 2308 | 921 | 2728 | 1843 | 4585 | - | - |
58 | 923 | 2554 | 968 | 2975 | 1954 | 4986 | - | - |
60 | 971 | 2765 | 1032 | 3250 | 2353 | 5750 | - | - |
ASME B16 47 Slip On Flange Dimensions
NPS | I.D. | O.D. | Bolts Circle | Raised | R/F | Hight (H) | WT Of R/F | (T1) | Thickness2 (F/F) | Bolts Holes | No. Of Bolt Hole |
---|---|---|---|---|---|---|---|---|---|---|---|
1/2 | 0.88 | 3.50 | 2.38 | 1.38 | .063 | 1.19 | .62 | .38 | .56 | .62 | 4 |
3/4 | 1.09 | 3.88 | 2.75 | 1.69 | .063 | 1.50 | .62 | .44 | .56 | .62 | 4 |
1 | 1.36 | 4.25 | 3.12 | 2.00 | .063 | 1.94 | .69 | .50 | .63 | .62 | 4 |
1-1/4 | 1.70 | 4.62 | 3.50 | 2.50 | .063 | 2.31 | .81 | .56 | .75 | .62 | 4 |
1-1/2 | 1.97 | 5.00 | 3.88 | 2.88 | .063 | 2.56 | .88 | .62 | .82 | .62 | 4 |
2 | 2.44 | 6.00 | 4.75 | 3.62 | .063 | 3.06 | 1.00 | .69 | .94 | .75 | 4 |
2-1/2 | 2.94 | 7.00 | 5.50 | 4.12 | .063 | 3.56 | 1.12 | .82 | 1.06 | .75 | 4 |
3 | 3.57 | 7.50 | 6.00 | 5.00 | .063 | 4.25 | 1.19 | .88 | 1.13 | .75 | 4 |
3-1/2 | 4.07 | 8.50 | 7.00 | 5.50 | .063 | 4.81 | 1.25 | .88 | 1.19 | .75 | 8 |
4 | 4.57 | 9.00 | 7.50 | 6.19 | .063 | 5.31 | 1.31 | .88 | 1.25 | .75 | 8 |
5 | 5.66 | 10.00 | 8.50 | 7.31 | .063 | 6.44 | 1.44 | .88 | 1.38 | .88 | 8 |
6 | 6.72 | 11.00 | 9.50 | 8.50 | .063 | 7.56 | 1.56 | .94 | 1.50 | .88 | 8 |
8 | 8.72 | 13.50 | 11.75 | 10.62 | .063 | 9.69 | 1.75 | 1.06 | 1.69 | .88 | 8 |
10 | 10.88 | 16.00 | 14.25 | 12.75 | .063 | 12.00 | 1.94 | 1.13 | 1.88 | 1.00 | 12 |
12 | 12.88 | 19.00 | 17.00 | 15.00 | .063 | 14.38 | 2.19 | 1.19 | 2.13 | 1.00 | 12 |
14 | 14.14 | 21.00 | 18.75 | 16.25 | .063 | 15.75 | 2.25 | 1.32 | 2.19 | 1.12 | 12 |
16 | 16.16 | 23.50 | 21.25 | 18.50 | .063 | 18.00 | 2.50 | 1.38 | 2.44 | 1.12 | 16 |
18 | 18.18 | 25.00 | 22.75 | 21.00 | .063 | 19.88 | 2.69 | 1.50 | 2.63 | 1.25 | 16 |
20 | 20.20 | 27.50 | 25.00 | 23.00 | .063 | 22.00 | 2.88 | 1.63 | 2.83 | 1.25 | 20 |
22 | 22.22 | 29.50 | 27.25 | 25.25 | .063 | 24.25 | 3.13 | 1.75 | 3.07 | 1.38 | 20 |
24 | 24.25 | 32.00 | 29.50 | 27.25 | .063 | 26.12 | 3.25 | 1.82 | 3.19 | 1.38 | 20 |
ASME B16 47 Blind Flange Dimensions
NPS In Inch | Outside Diameter Of (A) | WT Of (B) | Dai. Of R/F (C) | Bolts Circle Of D | # Bolts Holes | Daimeter Of Bolts Holes | Weight As Per Kilogram |
---|---|---|---|---|---|---|---|
1/2 | 3-1/2 | 7/16 | 1-3/8 | 2-3/8 | 4 | 5/8 | 2 |
3/4 | 3-7/8 | 1/2 | 1-11/16 | 2-3/4 | 4 | 5/8 | 2 |
1 | 4-1/4 | 9/16 | 2 | 3-1/8 | 4 | 5/8 | 2 |
1-1/4 | 4-5/8 | 5/8 | 2-1/2 | 3-1/2 | 4 | 5/8 | 3 |
1-1/2 | 5 | 11/16 | 2-7/8 | 3-7/8 | 4 | 5/8 | 3 |
2 | 6 | 3/4 | 3-5/8 | 4-3/4 | 4 | 3/4 | 4 |
2-1/2 | 7 | 7/8 | 4-1/8 | 5-1/2 | 4 | 3/4 | 7 |
3 | 7-1/2 | 15/16 | 5 | 6 | 4 | 3/4 | 9 |
3-1/2 | 8-1/2 | 15/16 | 5-1/2 | 7 | 8 | 3/4 | 13 |
4 | 9 | 15/16 | 6-3/16 | 7-1/2 | 8 | 3/4 | 17 |
5 | 10 | 15/16 | 7-5/16 | 8-1/2 | 8 | 7/8 | 20 |
6 | 11 | 1 | 8-1/2 | 9-1/2 | 8 | 7/8 | 27 |
8 | 13-1/2 | 1-1/8 | 10-5/8 | 11-3/4 | 8 | 7/8 | 47 |
10 | 16 | 1-3/16 | 12-3/4 | 14-1/4 | 12 | 1 | 67 |
12 | 19 | 1-1/4 | 15 | 17 | 12 | 1 | 123 |
14 | 21 | 1-3/8 | 16-1/4 | 18-3/4 | 12 | 1-1/8 | 139 |
16 | 23-1/2 | 1-7/16 | 18-1/2 | 21-1/4 | 16 | 1-1/8 | 187 |
18 | 25 | 1-9/16 | 21 | 22-3/4 | 16 | 1-1/4 | 217 |
20 | 27-1/2 | 1-11/16 | 23 | 25 | 20 | 1-1/4 | 283 |
24 | 32 | 1-7/8 | 27-1/4 | 29-1/2 | 20 | 1-3/8 | 415 |
Bolt Length For ASME B16.47 Flange
NPS In Inch | 150# In Inches | 300# In Inches | 400# In Inches | 600# In Inches | 900# In Inches | |||||
---|---|---|---|---|---|---|---|---|---|---|
D | L | D | L | D | L | D | L | D | L | |
26 | 3/4 | 5-1/2 | 1-1/4 | 10-1/2 | 1-3/8 | 11-1/4 | 1-5/8 | 13-3/4 | 2-1/2 | 17-1/4 |
28 | 3/4 | 5-3/4 | 1-1/4 | 10-1/2 | 1-1/2 | 12 | 1-3/4 | 14-1/4 | 2-3/4 | 19 |
30 | 3/4 | 5-3/4 | 1-3/8 | 11-1/4 | 1-1/2 | 12-1/2 | 1-7/8 | 15-1/4 | 3 | 20 |
32 | 3/4 | 5-3/4 | 1-1/2 | 12-1/4 | 1-5/8 | 13-1/2 | 2 | 15-3/4 | 3 | 20-1/4 |
34 | 7/8 | 6-1/4 | 1-1/2 | 12-1/4 | 1-5/8 | 13-3/4 | 2-1/4 | 17-1/4 | 3-1/4 | 21-3/4 |
36 | 7/8 | 6-3/4 | 1-5/8 | 12-1/2 | 1-3/4 | 15-1/2 | 2-1/4 | 17-3/4 | 3 | 21-1/4"s |
38 | 1 | 7-1/4 | 1-5/8 | 13-1/4 | - | - | - | - | - | - |
40 | 1 | 7-1/4 | 1-5/8 | 13-1/2 | - | - | - | - | - | - |
42 | 1 | 7-1/2 | 1-3/4 | 14 | - | - | - | - | - | - |
44 | 1 | 7-3/4 | 1-3/4 | 14-3/4 | - | - | - | - | - | - |
46 | 1-1/8 | 8 | 1-7/8 | 15 | - | - | - | - | - | - |
48 | 1-1/8 | 8-1/4 | 1-7/8 | 15 | - | - | - | - | - | - |
50 | 1-1/8 | 8-1/2 | 1-7/8 | 15-3/4 | - | - | - | - | - | - |
52 | 1-1/8 | 8-3/4 | 1-7/8 | 16 | - | - | - | - | - | - |
54 | 1-1/8 | 8-3/4 | 1-7/8 | 15-3/4 | - | - | - | - | - | - |
56 | 1-1/8 | 9 | 2-1/4 | 17-3/4 | - | - | - | - | - | - |
58 | 1-1/4 | 9-1/4 | 2-1/4 | 17-3/4 | - | - | - | - | - | - |
60 | 1-1/4 | 9-1/2 | 2-1/4 | 17-1/2 | - | - | - | - | - | - |
Pressure Rating Of Large Diameter Flange
Temperature (Dedgree C) | Class Of Flanges | ||||||
---|---|---|---|---|---|---|---|
(150#) | (300#) | (400#) | (600#) | (900#) | (1500#) | (2500#) | |
-29 - 38 | 19.8 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
50 | 19.5 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
100 | 17.7 | 51.5 | 68.7 | 103.0 | 155 | 258 | 429 |
150 | 15.8 | 50.2 | 66.8 | 100.3 | 151 | 251 | 418 |
200 | 13.8 | 48.6 | 64.8 | 97.2 | 146 | 243 | 405 |
250 | 12.1 | 46.3 | 61.7 | 92.7 | 139 | 232 | 386 |
300 | 10.2 | 42.9 | 57.0 | 85.7 | 129 | 214 | 357 |
325 | 9.3 | 41.4 | 55.0 | 82.6 | 124 | 207 | 344 |
350 | 8.4 | 40.0 | 53.4 | 80.0 | 120 | 200 | 334 |
375 | 7.4 | 37.8 | 50.4 | 75.7 | 114 | 189 | 315 |
400 | 6.5 | 34.7 | 46.3 | 69.4 | 104 | 174 | 290 |
425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 144 | 240 |
450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115 | 192 |
475 | 3.7 | 17.1 | 22.8 | 34.2 | 51.3 | 85.4 | 142 |
500 | 2.8 | 11.6 | 15.4 | 23.2 | 34.7 | 57.9 | 96.5 |
538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
ASME B16.47 Series B Flange Dimensions
NPS | Outside Diameter | (D) | (B) (WN) | (B) (BLRF) | (H) | (A) |
26 | 661.9 | 785 | 39.8 41.4 | 43 44.6 | 87 88.6 | 684 |
28 | 712.7 | 835 | 43 44.6 | 46.2 47.8 | 94 95.6 | 735 |
30 | 763.5 | 885 | 43 44.6 | 49.3 50.9 | 98 99.6 | 787 |
32 | 814.3 | 940 | 44.6 46.2 | 52.5 54.1 | 106 107.6 | 840 |
34 | 865.1 | 1005 | 47.7 49.3 | 55.7 57.3 | 109 110.6 | 892 |
36 | 915.9 | 1055 | 50.9 52.5 | 57.3 58.9 | 116 117.6 | 945 |
38 | 968.2 | 1125 | 52.5 54.1 | 62 63.6 | 122 123.6 | 997 |
40 | 1019 | 1175 | 54.1 55.7 | 65.2 66.8 | 127 128.6 | 1049 |
42 | 1069.8 | 1225 | 57.3 58.9 | 66.8 68.4 | 132 133.6 | 1102 |
44 | 1120.6 | 1275 | 58.9 60.5 | 70 71.6 | 135 136.6 | 1153 |
46 | 1171.4 | 1340 | 60.4 62 | 73.1 74.7 | 143 144.6 | 1205 |
48 | 1222.2 | 1390 | 63.6 65.2 | 76.3 77.9 | 148 149.6 | 1257 |
50 | 1273 | 1445 | 66.8 68.4 | 79.5 81.1 | 152 153.6 | 1308 |
52 | 1323.8 | 1495 | 68.4 70 | 82.7 84.3 | 156 157.6 | 1360 |
54 | 1374.6 | 1550 | 70 71.6 | 85.8 87.4 | 160 161.6 | 1413 |
56 | 1425.4 | 1600 | 71.6 73.2 | 89 90.6 | 165 166.6 | 1465 |
58 | 1476.2 | 1675 | 73.1 74.7 | 91.9 93.5 | 173 174.6 | 1516 |
60 | 1527 | 1725 | 74.7 76.3 | 95.4 97 | 178 179.6 | 1570 |
ASME B16.47 Series B Class 150 Dimensions
Normal Pipe Size | Outside Diameter | Minimum (Wall Thickness) | O.D. of (R/F) | Diameter Of Hub | Length Of Thru Hub | Weight As Per LBS | Drilling | ||||
WNRF | BLRF | WNRF | WNRF | BLRF | Holes Number | Diameter Of Holes | Bolts Circle Dia. | ||||
26 | 30 | 1.25 | 1.25 | 27.75 | 26.63 | 2.25 | 80 | 255 | 36 | 0.75 | 28.50 |
28 | 32 | 1.25 | 1.25 | 29.75 | 28.63 | 2.38 | 85 | 290 | 40 | 0.75 | 30.50 |
30 | 34 | 1.25 | 1.25 | 31.75 | 30.63 | 2.50 | 90 | 330 | 44 | 0.75 | 32.50 |
32 | 36 | 1.32 | 1.38 | 33.75 | 32.63 | 2.69 | 105 | 390 | 48 | 0.75 | 34.50 |
34 | 38 | 1.32 | 1.44 | 35.75 | 34.63 | 2.82 | 110 | 430 | 52 | 0.75 | 36.50 |
36 | 40.69 | 1.38 | 1.61 | 38 | 36.81 | 3.32 | 145 | 58 | 40 | 0.75 | 39.06 |
38 | 42.69 | 1.44 | 1.69 | 40 | 38.81 | 3.44 | 160 | 595 | 40 | 0.88 | 41.06 |
40 | 44.69 | 1.44 | 1.69 | 42 | 40.81 | 3.57 | 170 | 760 | 44 | 0.88 | 43.06 |
42 | 16.69 | 1.50 | 1.82 | 44 | 42.81 | 3.69 | 185 | 895 | 48 | 0.88 | 45.06 |
44 | 49.25 | 1.63 | 1.88 | 46.25 | 44.88 | 4.07 | 230 | 1065 | 36 | 1 | 47.38 |
46 | 51.25 | 1.69 | 1.94 | 48.25 | 46.88 | 4.19 | 245 | 1185 | 40 | 1 | 49.38 |
48 | 53.25 | 1.75 | 2.07 | 50.25 | 48.88 | 4.32 | 270 | 1315 | 44 | 1 | 51.38 |
50 | 55.25 | 1.82 | 2.13 | 52.25 | 50.94 | 4.50 | 290 | 1505 | 44 | 1 | 53.38 |
52 | 57.38 | 1.82 | 2.19 | 54.25 | 52.94 | 4.69 | 310 | 1665 | 48 | 1 | 55.50 |
54 | 59.38 | 1.88 | 2.31 | 56.25 | 55 | 4.88 | 340 | 1840 | 48 | 1 | 57.50 |
56 | 62 | 1.94 | 2.38 | 58.50 | 57.13 | 5.25 | 400 | 2110 | 40 | 1.12 | 59.88 |
58 | 64 | 2 | 2.44 | 60.50 | 59.13 | 5.38 | 430 | 2300 | 44 | 1.12 | 61.88 |
60 | 66 | 2.13 | 2.56 | 62.50 | 61.13 | 5.63 | 475 | 2500 | 44 | 1.12 | 63.88 |
ASME B16 47 Series B Flange Weight
Normal Pipe Size | Class 150 | Class 300 | Class 600 | |||
WNF | BLRF | WNF | BLRF | WNF | BLRF | WNF |
26 | 65 | 165 | 193 | 404 | 260 | 534 |
28 | 75 | 200 | 211 | 457 | 305 | 637 |
30 | 82 | 226 | 258 | 555 | 378 | 793 |
32 | 94 | 263 | 315 | 693 | 436 | 925 |
34 | 113 | 320 | 339 | 765 | 550 | 1150 |
36 | 128 | 374 | 380 | 858 | 591 | 1290 |
38 | 153 | 434 | 425 | 1005 | 668 | 1481 |
40 | 166 | 489 | 459 | 1132 | 718 | 1662 |
42 | 182 | 560 | 514 | 1280 | 888 | 1989 |
44 | 195 | 626 | 567 | 1466 | 942 | 2188 |
46 | 229 | 709 | 666 | 1657 | 1046 | 2458 |
48 | 248 | 799 | 687 | 1772 | 1237 | 2859 |
50 | 268 | 899 | 797 | 2029 | 1412 | 3280 |
52 | 284 | 985 | 806 | 2230 | 1481 | 3573 |
54 | 309 | 1081 | 840 | 2310 | 1623 | 3949 |
56 | 329 | 1181 | 1117 | 2891 | 1829 | 4423 |
58 | 391 | 1322 | 1194 | 3093 | 1939 | 4791 |
60 | 414 | 1430 | 1215 | 3213 | 2336 | 5533 |
What types of gaskets are used with ASME B16.47 series B slip on flange?
Often used in refurbished systems, an ASME B16.47 series B slip on flange has a smaller bolt circle diameter. It reduces post-installation movement. Generally, these compact flanges get preferred for lower criticality.
Customers can use spiral wound or jacketed gaskets. The manufacturer must use appropriate tolerances for the outside/inside diameters and the centering ring. For example, for NPS 26 to 34, the level for the inner diameter is ±0.03”. Notably, ring type joints are unavailable for Series B.
What is the recommended procedure for inspecting a B16.47 series B blind flange?
Blind flanges can seal piping sections for repair and maintenance actions. A B16.47 series B blind flange is usually not subject to non-destructive inspection, or NDI. The standard procedure is only a precautionary measure of the thickness.
How are large diameter flanges tested and certified for use in various applications?
Integrated testing of large diameter flanges ensures leaks, defects, contamination, corrosion, etc., are absent. Manufacturers perform radiography and ultrasonic testing to ascertain the quality. They also assess the mechanical properties via tension and hardness tests.
Customers should verify the quality through the MTC and Raw Materials Certificate or issue a third-party examination.