ASME B16.47 Flanges

ASME B16.47 Series B weld neck Flange, ASME B16.47 slip on Flanges Supplier, ANSI B16.47 Threaded Flanges, ASME B16.47 Series A Blind Flange, ASME B16.47 Socket Weld Flanges, ASME B16.47 Spectacle blind Flanges Manufacturer in India.

ASME B16.47 is a standard that specifies the requirements for large diameter steel flanges, typically in sizes NPS 26 through NPS 60. The standard includes two different classes of flanges: Class 150 and Class 300.

The Class 150 flanges are designed to withstand a maximum pressure of 285 psi at temperatures up to 1000°F, while the Class 300 flanges can withstand a maximum pressure of 740 psi at the same temperature range.

These flanges are typically used in high-pressure, high-temperature applications such as in the oil and gas industry, chemical processing, and power generation plants.

ASME B16.47 specifies the dimensions, tolerances, materials, marking, and testing requirements for these flanges. The standard also includes provisions for flange facings, gaskets, bolts, and nuts, which are important considerations in ensuring a proper seal and connection between the flanges.

ASME B16.47 Series A Flanges, ASME B16.47 Class 150 Flanges Manufacturers

Suppliers of ASME B16.47 Series A Welding Neck Flange, Lap joint Flanges, ASME B16.47 Series B Class 300 Flanges, Check Sizes And Dimensions Of ASME B16.47 Series B Forged Flanges, Ready Stock of ASME B16.47 Socket Weld Flange, ANSI B16.47 Series A Class 150 Flanges.

ASME B16.47 Flange Specifications

Size Range

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

Find the largest ready stock of ASME B16.47 Series A Flanges, ASME B16.47 Slip On Flanges Dealer, ASME B16.47 Series A Flange Price List, Check Availability of B16.47 Threaded Flanges, ASME B16.47 Reducing Flanges Stockist, ASME B16.47 Series B BLRF Flanges Supplier, ASME B16.47 Forged Flanges in Mumbai, India.

ASME B16.47 Flanges Dimensions

Series A Flanges DimensionsSeries B Flanges Dimensions
ASME B16.47 Series A Flanges Class 150ASME B16.47 Series B Flanges Class 75
ASME B16.47 Series A Flanges Class 300ASME B16.47 Series B Flanges Class 150
ASME B16.47 Series A Flanges Class 400ASME B16.47 Series B Flanges Class 300
ASME B16.47 Series A Flanges Class 600ASME B16.47 Series B Flanges Class 400
ASME B16.47 Series A Flanges Class 900ASME B16.47 Series B Flanges Class 600
ASME B16.47 Series B Flanges Class 900
ASME B16.47 SERIES A FLANGES CLASS 150 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series A 150# Welding Neck Flange with RF ASME B16.47 Series A Class 150 Blind Flange with RF
NPSDKGX
26″870806.4749676
28″925863.6800727
30″985914.4857781
32″1060977.9914832
34″11101028.7965883
36″11701085.81022933
38″12401149.41073991
40″12901200.211241041
42″13451257.311941092
44″14051314.412451143
46″14551365.212951197
48″15101422.413591248
50″15701479.614101302
52″16251536.714611353
54″16851593.815111403
56″17451651.015751457
58″18051708.216261508
60″18551759.016761559
General Note:
  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.466.766.7119
28″711.269.969.9124
30″762.073.173.1135
32″812.879.479.4143
34″863.681.081.0148
36″914.488.988.9156
38″965.285.885.8156
40″1016.088.988.9162
42″1066.895.395.3170
44″1117.6100.1100.1176
46″1168.4101.6101.6184
48″1219.2106.4106.4191
50″1270.0109.6109.6202
52″1320.8114.3114.3208
54″1371.6119.1119.1214
56″1422.4122.3122.3227
58″1473.2127.0127.0233
60″1524.0130.2130.2238
General Note:
  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 2mm height of RF for Class 150 Series A flange.
NPSndlr
26″241-3/81-1/410
28″281-3/81-1/411
30″281-3/81-1/411
32″281-5/81-1/211
34″321-5/81-1/213
36″321-5/81-1/213
38″321-5/81-1/213
40″361-5/81-1/213
42″361-5/81-1/213
44″401-5/81-1/213
46″401-5/81-1/213
48″441-5/81-1/213
50″441-7/81-3/413
52″441-7/81-3/413
54″441-7/81-3/413
56″481-7/81-3/413
58″481-7/81-3/413
60″521-7/81-3/413
General Note:
  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES A FLANGES CLASS 300 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series A 300# Welding Neck Flange with RF ASME B16.47 Series A Class 300 Blind Flange with RF
NPSDKGX
26″970876.3749721
28″1035939.8800775
30″1090997.0857827
32″11501054.1914881
34″12051104.9965937
36″12701168.41022991
38″11701092.21029994
40″12401155.710861048
42″12901206.511371099
44″13551263.611941149
46″14151320.812451203
48″14651371.613021254
50″15301428.813591305
52″15801479.614101356
54″16601549.414671410
56″17101600.215181464
58″17601651.015751514
60″18101701.816261565
General Note:
  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.466.766.7119
28″711.269.969.9124
30″762.073.173.1135
32″812.879.479.4143
34″863.681.081.0148
36″914.488.988.9156
38″965.285.885.8156
40″1016.088.988.9162
42″1066.895.395.3170
44″1117.6100.1100.1176
46″1168.4101.6101.6184
48″1219.2106.4106.4191
50″1270.0109.6109.6202
52″1320.8114.3114.3208
54″1371.6119.1119.1214
56″1422.4122.3122.3227
58″1473.2127.0127.0233
60″1524.0130.2130.2238
General Note:
  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.482.677.8183
28″711.288.984.2195
30″762.093.790.5208
32″812.898.596.9221
34″863.6103.2100.1230
36″914.4109.6103.2240
38″965.2106.4106.4179
40″1016.0112.8112.8192
42″1066.8117.5117.5198
44″1117.6122.3122.3205
46″1168.4127.0127.0214
48″1219.2131.8131.8222
50″1270.0138.2138.2230
52″1320.8142.9142.9237
54″1371.6150.9150.9251
56″1422.4152.4152.4259
58″1473.2157.2157.2265
60″1524.0162.0162.0271
General Note:
  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 2mm height of RF for Class 300 Series A flange.
NPSndlr
26″281-3/41-5/810
28″281-3/41-5/811
30″281-7/81-3/411
32″2821-7/811
34″2821-7/813
36″322-1/8213
38″321-5/81-1/213
40″321-3/41-5/813
42″321-3/41-5/813
44″321-7/81-3/413
46″2821-7/813
48″3221-7/813
50″322-1/8213
52″322-1/8213
54″282-3/82-1/413
56″282-3/82-1/413
58″322-3/82-1/413
60″322-3/82-1/413

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES A FLANGES CLASS 400 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series A 400# Welding Neck Flange with RF ASME B16.47 Series A Class 400 Blind Flange with RF
NPSDKGX
26″970876.3749727
28″1035939.8800783
30″1090997.0857837
32″11501054.1914889
34″12051104.9965945
36″12701168.410221000
38″12051117.610351003
40″12701174.610921054
42″13201225.611431108
44″13851282.712001159
46″14401339.812571213
48″15101403.413081267
50″15701460.513621321
52″16201511.314131372
54″17001581.214701426
56″17551632.015271480
58″18051682.815781530
60″18851752.616351584

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.498.588.9194
28″711.2104.895.3206
30″762.0111.2101.6219
32″812.8115.9108.0232
34″863.6122.3111.2241
36″914.4128.6114.3251
38″965.2123.9123.9206
40″1016.0130.2130.2216
42″1066.8133.4133.4224
44″1117.6139.7139.7233
46″1168.4146.1146.1244
48″1219.2152.4152.4257
50″1270.0158.8157.2268
52″1320.8163.6162.0276
54″1371.6171.5169.9289
56″1422.4176.3174.7298
58″1473.2181.0177.8306
60″1524.0189.0185.8319

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 400 Series A flange.
NPSndlr
26″281-7/81-3/411
28″2821-7/813
30″282-1/8213
32″282-1/8213
34″282-1/8214
36″322-1/8214
38″321-7/81-3/414
40″3221-7/814
42″3221-7/814
44″322-1/8214
46″362-1/8214
48″282-3/82-1/414
50″322-3/82-1/414
52″322-3/82-1/414
54″282-5/82-1/214
56″322-5/82-1/214
58″322-5/82-1/214
60″322-7/82-3/414

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES A FLANGES CLASS 600 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series A 600# Welding Neck Flange with RF ASME B16.47 Series A Class 600 Blind Flange with RF
NPSDKGX
26″1015914.4749748
28″1075965.2800803
30″11301022.4857862
32″11951079.5914918
34″12451130.3965973
36″13151193.810221032
38″12701162.010541022
40″13201212.811111073
42″14051282.711681127
44″14551333.512261181
46″15101390.612761235
48″15951460.513341289
50″16701524.013841343
52″17201574.814351394
54″17801632.014921448
56″18551695.415431502
58″19051746.216001553
60″19951822.416571610

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.4125.5108.0222
28″711.2131.8111.2235
30″762.0139.7114.3248
32″812.8147.7117.5260
34″863.6154.0120.7270
36″914.4162.0123.9283
38″965.2155.0152.4254
40″1016.0162.0158.8264
42″1066.8171.5168.3279
44″1117.6177.8173.1289
46″1168.4185.8179.4300
48″1219.2195.3189.0316
50″1270.0203.2195.9329
52″1320.8209.6203.2337
54″1371.6217.5209.6349
56″1422.4225.5217.5362
58″1473.2231.8222.3370
60″1524.0242.9233.4389

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 600 Series A flange.
NPSndlr
26″2821-7/813
28″282-1/8213
30″282-1/8213
32″282-3/82-1/413
34″282-3/82-1/414
36″282-5/82-1/214
38″282-3/82-1/414
40″322-3/82-1/414
42″282-5/82-1/214
44″322-5/82-1/214
46″322-5/82-1/214
48″322-7/82-3/414
50″283-1/8314
52″323-1/8314
54″323-1/8314
56″323-3/83-1/416
58″323-3/83-1/416
60″283-5/83-1/217

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES A FLANGES CLASS 900 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series A 900# Welding Neck Flange with RF ASME B16.47 Series A Class 900 Blind Flange with RF
NPSDKGX
26″1085952.5749775
28″11701022.4800832
30″12301085.8857889
32″13151155.7914946
34″13951225.69651006
36″14601289.010221064
38″14601289.010991073
40″15101339.811621127
42″15601390.612131176
44″16501463.712701235
46″17351536.713341292
48″17851587.513841343
50″
52″
54″
56″
58″
60″

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of flange.
NPSATBLTWNY
26″660.4160.4139.7286
28″711.2171.5142.9298
30″762.0182.6149.3311
32″812.8193.7158.8330
34″863.6204.8165.1349
36″914.4214.4171.5362
38″965.2215.9190.5352
40″1016.0223.9196.9364
42″1066.8231.8206.4371
44″1117.6242.9214.4391
46″1168.4255.6225.5411
48″1219.2263.6233.4419
50″
52″
54″
56″
58″
60″

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 900 Series A flange.
NPSndlr
26″202-7/82-3/411
28″203-1/8313
30″203-1/8313
32″203-3/83-1/413
34″203-5/83-1/214
36″203-5/83-1/214
38″203-5/83-1/219
40″243-5/83-1/221
42″243-5/83-1/221
44″243-7/83-3/422
46″244-1/8422
48″244-1/8424
50″
52″
54″
56″
58″
60″

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 75 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 75# Welding Neck Flange with RF ASME B16.47 Series B Class 75 Blind Flange with RF
NPSDKGX
26760723.9705676
28815774.7756727
30865825.5806778
32915876.3857829
34965927.1908879
361035992.2965935
3810851043.01016986
4011351093.810671037
4211851144.611181087
4412501203.311751140
4613001254.112261191
4813551304.912761241
5014051355.713271294
5214551409.713781345
5415101460.514291397
5615751520.814861451
5816251571.615371502
6016751622.415881553

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26661.931.931.957
28712.731.931.960
30763.531.931.964
32814.335.033.568
34865.136.633.572
36915.940.935.084
38966.743.036.687
401017.543.036.691
421068.346.338.294
441119.147.741.4103
461169.949.343.0106
481220.752.544.6110
501271.554.146.2114
521322.355.746.2119
541373.158.947.8124
561423.960.449.3133
581474.762.050.9137
601525.565.254.1143

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 2mm height of RF for Class 75 Series B flange.
NPSndlr
26363/45/88
28403/45/88
30443/45/88
32483/45/88
34523/45/88
36407/83/410
38407/83/410
40447/83/410
42487/83/410
443617/810
464017/810
484417/810
504417/810
524817/810
544817/810
56401-1/8111
58441-1/8111
60441-1/8111

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 150 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 150# Welding Neck Flange with RF ASME B16.47 Series B Class 150 Blind Flange with RF
NPSDKGX
26785744.5711684
28835795.3762735
30885846.1813787
32940900.1864840
341005957.3921892
3610551009.6972945
3811251070.01022997
4011751120.810801049
4212251171.611301102
4412751222.411811153
4613401284.312351205
4813901335.112891257
5014451385.913401308
5214951436.713911360
5415501492.214411413
5616001543.014921465
5816751611.315431516
6017251662.116001570

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: outside diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26661.943.039.887
28712.746.243.094
30763.549.343.098
32814.352.544.6106
34865.155.747.7109
36915.957.350.9116
38968.262.052.5122
401019.065.254.1127
421069.866.857.3132
441120.670.058.9135
461171.473.160.4143
481222.276.363.6148
501273.079.566.8152
521323.882.768.4156
541374.685.870.0160
561425.489.071.6165
581476.291.973.1173
601527.095.474.7178

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 2mm height of RF for Class 150 Series B flange.
NPSndlr
26367/83/410
28407/83/410
30447/83/410
32487/83/410
344017/810
364417/810
38401-1/8110
40441-1/8110
42481-1/8111
44521-1/8111
46401-1/41-1/811
48441-1/41-1/811
50481-1/41-1/811
52521-1/41-1/811
54561-1/41-1/811
56601-1/41-1/814
58481-3/81-1/414
60521-3/81-1/414

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 300 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 300# Welding Neck Flange with RF ASME B16.47 Series B Class 300 Blind Flange with RF
NPSDKGX
26865803.3737702
28920857.2787756
30990920.8845813
321055977.9902864
3411101031.9953918
3611701089.01010965
3812201139.810601016
4012751190.611141067
4213351244.611681118
4413851295.412191173
4614601365.212701229
4815101416.013271278
5015601466.813781330
5216151517.614291383
5416751578.014801435
5617651651.015371494
5818251712.915941548
6018801763.716511599

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: outside diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26665.287.487.7143
28716.087.487.4148
30768.492.192.1156
32819.2101.6101.6167
34870.0101.6101.6171
36920.8101.6101.6179
38971.6109.6109.6191
401022.4114.3114.3197
421074.7117.5117.5203
441125.5125.5125.5213
461176.3128.6127.0221
481227.1133.4127.0222
501277.9138.2136.6233
521328.7142.6141.3241
541379.5147.7135.0238
561430.3155.4152.4267
581481.1160.4152.4273
601531.9165.1149.3270

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 2mm height of RF for Class 300 Series B flange.
NPSndlr
26321-3/81-1/414
28361-3/81-1/414
30361-1/21-3/814
32321-5/81-1/216
34361-5/81-1/216
36321-3/41-5/816
38361-3/41-5/816
40401-3/41-5/816
42361-7/81-3/416
44401-7/81-3/416
463621-7/816
484021-7/816
504421-7/816
524821-7/816
544821-7/816
56362-3/82-1/417
58402-3/82-1/417
60402-3/82-1/417

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 400 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 400# Welding Neck Flange with RF ASME B16.47 Series B Class 400 Blind Flange with RF
NPSDKGX
26850781.0711689
28915838.2762740
30970895.4819794
321035952.5873845
3410851003.3927899
3611551066.8981952

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: outside diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26660.488.988.9149
28711.295.395.3159
30762.0101.6101.6170
32812.8108.0108.0179
34863.6111.2111.2187
36914.4119.1119.1200

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 400 Series B flange.
NPSndlr
26281-1/21-3/811
28241-5/81-1/213
30281-5/81-1/213
32281-3/41-5/813
34321-3/41-5/814
36281-7/81-3/414

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 600 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 600# Welding Neck Flange with RF ASME B16.47 Series B Class 600 Blind Flange with RF
NPSDKGX
26890806.4727698
28950863.6784752
301020927.1841806
321085984.2895860
3411601054.1953914
3612151104.91010968

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: outside diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26660.4111.3111.2181
28711.2115.9115.9190
30762.0127.0125.5205
32812.8134.9130.2216
34863.6144.2141.3233
36914.4150.9146.1243

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 600 Series B flange.
NPSndlr
26281-3/41-5/813
28281-7/81-3/413
302821-7/813
32282-1/8213
34242-3/82-1/414
36282-3/82-1/414

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.
ASME B16.47 SERIES B FLANGES CLASS 900 DIMENSIONS AND TECHNICAL DRAWINGS
ASME B16.47 Series B 900# Welding Neck Flange with RF ASME B16.47 Series B Class 900 Blind Flange with RF
NPSDKGX
261020901.7762743
281105971.6819797
3011801035.0876851
3212401092.2927908
3413151155.7991962
3613451200.210291016

General Note:

  • All dimensions are in MM.
  • D: outside diameter of flange.
  • K: diameter of bolt circle.
  • G: outside diameter of raised face.
  • X: diameter of hub of WN flange.
NPSATBLTWNY
26660.4154.0135.0259
28711.2166.7147.7276
30762.0176.1155.6289
32812.8186.0160.4303
34863.6195.0171.5319
36914.4201.7173.1325

General Note:

  • All dimensions are in MM.
  • A: Diameter of hub top of WN.
  • TBL: minimum thickness of blind flange.
  • TWN: minimum thickness of WN flange.
  • Y: length through hub of WN.
  • t: 7mm height of RF for Class 900 Series B flange.
NPSndlr
26202-5/82-1/211
28202-7/82-3/413
30203-1/8313
32203-1/8313
34203-3/83-1/414
36243-1/8314

General Note:

  • n: number of bolt holes.
  • d: diameter of bolt hole.
  • l: diameter of bolt.
  • r: minimum fillet radius for WN.
  • d and l are in inch units, while r is in mm unit.

Find the largest ready stock of ASME B16.47 Series A Flanges, ASME B16.47 Slip On Flanges Dealer, ASME B16.47 Series A Flange Price List, Check Availability of B16.47 Threaded Flanges, ASME B16.47 Reducing Flanges Stockist, ASME B16.47 Series B BLRF Flanges Supplier, ASME B16.47 Forged Flanges in Mumbai, India.

ASME B16.47 Flanges Weight Chart

Flange ASME B16.47-A (MSS SP 44)
NPS SIZECLASS 150CLASS 300CLASS 600CLASS 900
WELDING NECKBLINDWELDING NECKBLINDWELDING NECKBLINDWELDING NECKBLIND
22109162204284310437
261543212914774507778901100
2817538035258450690910551350
30204450405685575107412301610
32254560465793642125314801940
34273625523919705142717502310
363217605801072800166519972660
38358830324900674150920002690
403869253911066725169521612950
4244210804281206895202823793280
4449112304851378951224633213810
46525134555915701055254332244430
48580152059717451247295135004860
506241668674198314233381
526891867728219414933682
547602088871253816374091
568452308921272818434585
589232554968297519544986
6097127651032325023535750
Flange ASME B16.47-B (API 605)
NPS SizeCLASS 150CLASS 300CLASS 600CLASS 900
WELDING NECKBLINDWELDING NECKBLINDWELDING NECKBLINDWELDING NECKBLIND
2665165193404260534
2875200211457305637
3082226258555378793
3294263315693436925
341133203397655501150
361283743808585911290
3815343442510056681481
4016648945911327181662
4218256051412808881989
4419562656714669422188
46229709666165710462458
48248799687177212372859
50268899797202914123280
52284985806223014813573
543091081840231016233949
5632911811117289118294423
5839113221194309319394791
6041414301215321323365533

ASME B16.47 Flanges Bore Chart

Pipe SizeO.D.
in inches
510203040STD6080XH100
120
140
160
XXH
1/20.840.065
.710
.083
.674
.109
.622
.109
.622
.147
.546
.147
.546
.187
.466
.294
.252
3/41.050.065
.920
.083
.884
.113
.824
.113
.824
.154
.742
.154
.742
.218
.614
.308
.434
11.315.065
1.185
.109
1.097
.133
1.049
.133
1.049
.179
.957
.179
.957
.250
.815
.358
.599
1 1/41.660.065
1.530
.109
1.442
.140
1.380
.140
1.380
.191
1.278
.191
1.278
.250
1.160
.382
.896
1 1/21.900.065
1.770
.109
1.682
.145
1.610
.145
1.610
.200
1.500
.200
1.500
.281
1.338
.400
1.100
22.375.065
2.245
.109
2.157
.154
2.067
.154
2.067
.218
1.939
.218
1.939
.343
1.687
.436
1.503
2 1/22.875.083
2.709
.120
2.635
.203
2.469
.203
2.469
.276
2.323
.276
2.323
.375
2.125
.552
1.771
33.500.083
3.334
.120
3.260
.216
3.068
.216
3.068
.300
2.900
.300
2.900
.437
2.626
.600
2.300
3 1/24.083
3.834
.120
3.760
.226
3.548
.226
3.548
.318
3.364
.318
3.364
.636
2.728
44.5.083
4.334
.120
4.260
.237
4.026
.237
4.026
.281
3.938
.337
3.826
.337
3.826
.437
3.626
.531
3.438
.674
3.152
55.563.109
5.345
.134
5.295
.258
5.047
.258
5.047
.375
4.813
.375
4.813
.500
4.563
.625
4.313
.750
4.063
66.625.109
6.407
.134
6.357
.280
6.065
.280
6.065
.432
5.761
.432
5.761
.562
5.501
.718
5.189
.864
4.897
88.625.109
8.407
.148
8.329
.250
8.125
.277
8.071
.322
7.981
.322
7.981
.406
7.813
.500
7.625
.500
7.625
.593
7.439
.718
7.189
.812
7.001
.906
6.813
.875
6.875
1010.75.134
10.482
.165
10.420
.250
10.250
.307
10.136
.365
10.020
.365
10.020
.500
9.750
.593
9.562
.500
9.750
.718
9.314
.843
9.064
1.000
8.750
1.125
8.500
1212.75.156
12.420
.180
12.390
.250
12.250
.330
12.090
.406
11.938
.375
12.000
.562
11.626
.687
11.374
.500
11.750
.843
11.064
1.000
10.750
1.125
10.500
1.312
10.126
1414.0.250
13.500
.312
13.376
.375
13.250
.437
13.124
.375
13.250
.593
12.812
.750
12.500
.500
13.000
.937
12.126
1.093
11.814
1.250
11.500
1.406
11.188
1616.0.250
15.500
.312
15.376
.375
15.250
.500
15.000
.375
15.250
.656
14.688
.843
14.312
.500
15.000
1.031
13.938
1.218
13.564
1.437
13.126
1.593
12.814
1818.0.250
17.500
.312
17.376
.437
17.124
.562
16.876
.375
17.250
.750
16.500
.937
16.124
.500
17.000
1.156
15.688
1.375
15.250
1.562
14.876
1.781
14.438
2020.0.250
19.500
.375
19.250
.500
19.000
.593
18.812
.375
19.250
.812
18.376
1.031
17.938
.500
19.000
1.280
17.440
1.500
17.000
1.750
16.500
1.968
16.064
2222.0.250
21.500
.375
21.250
.500
21.000
.375
21.250
.875
20.250
1.125
19.750
.500
21.000
1.375
19.250
1.625
18.750
1.875
18.250
2.125
17.750
2424.0.250
23.500
.375
23.250
.562
22.876
.687
22.624
.375
23.250
.968
22.064
1.218
21.562
.500
23.000
1.531
20.938
1.812
20.376
2.062
19.876
2.343
19.314
2626.0.312
25.376
.500
25.000
.375
25.250
.500
25.000
2828.0.312
27.376
.500
27.000
.625
26.750
.375
27.250
.500
27.000
3030.0.312
29.376
.500
29.000
.625
28.750
.375
29.250
.500
29.000
3232.0.312
31.376
.500
31.000
.625
30.750
.688
30.624
.375
31.250
.500
31.000
3434.0.344
33.312
.500
33.000
.625
32.750
.688
32.624
.375
33.250
.500
33.000
3636.0.312
35.376
.500
35.000
.625
34.750
.750
34.500
.375
35.250
.500
35.000
4242.0.375
41.250
.500
41.000
4848.0.375
47.250
.500
47.000

ASME B16.47 Flange Tolerance Chart

OD±0.12″±3.2mm
The diameter of Flange Face0.06″ (1.66mm) raised face±0.08″±2.0mm
0.25″ (6.44mm) raised face±0.04″
er ofThe diameter of the Hub at the Point of Welding±0.21″, -0.06″±5.5mm, -1.6mm
ID±0.12″, -0.06″±3.2mm, -1.6mm
Thk.Up to 1.0″ Thickness±0.12″, -0.00″±3.2mm, -0.00mm
1.0″ to 2.0″±0.19″, -0.00″±4.8mm, -0.00mm
2.0″ to 3.0″±0.31″, -0.00″±7.9mm, -0.00mm
Over 3.0′ Thickness±0.38″, -0.00″±9.6mm, -0.00mm
Bolts DrillingBolt Circle Diameter±0.06″±1.6mm
Bolt Hole Spacing±0.03″±0.8mm
The eccentricity of the Bolt Circle and Facing vs. Bore±0.06″±1.6mm
Length Through Hub for Welding Neck Flanges±0.19″±4.8mm

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ASME B16.47 Flanges Applications

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

ASME B16.47 Flanges Price

Omaa Metal Sources is ANSI/ASME B16.47 Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.

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