• AN ISO 9001-2008 | 14001-2004 | OHSAS 18001-2007 | PED CERTIFIED 97/23/EC

API 6A Welding Neck Flanges Dimension

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PI 6A Flange, API Weld neck Flanges, API Slip on Flanges, API Socket weld Flanges, API Blind Flanges, API 6A Type 6B 5000PSI Blind / Welding Neck Flange, API Threaded Flange Dimension


Specifications Of API 6A Flanges

API 6A Blind flange is a flange system from USA, which have flange type including Welding neck Flanges, blind Flange.

  • Type:Welding neck Flanges, Blind Flanges with Ring Joint Connetction, slip on flange, blind flange, welded neck flange, threaded flange, lapped joint flange (loose flange), socket welded flange, Orifice Flanges, long weld neck flange and special flange
  • Material: Carbon steel: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
  • Standard: API 6A
  • Size: 1-13/16" to 21-1/4"
  • Pressure: 2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi
  • Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
  • Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
  • E-catalogue: Available , please visit catalogue of flange
  • Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

Dimensions Of API 6A Weld Neck Flanges

API Flange, API 6A Flange Dimensions
Flange Size Working Pressure (PSI) Outside Diameter Number of Bolt Holes Diameter of Bolt Holes Length of Bolts API Ring Gasket
1-13/16" 10,000 7-3/8" 8 3/4" 5-1/4" BX-151
1-13/16" 15,000 8-3/16" 8 7/8" 6" BX-151
1-13/16" 20,000 10-1/8" 8 1" 7-3/4" BX-151
2-1/16" 2,000 6-1/2" 8 5/8" 5/8" R-23
2-1/16" 3,000/5,000 8-1/2" 8 7/8" 7/8" R-24
2-1/16" 10,000 7-7/8" 8 3/4" 3/4" BX-152
2-1/16" 15,000 8-3/4" 8 7/8" 7/8" BX-152
2-1/16" 20,000 11-5/16" 8 1-1/8" 1-1/8" BX-152
2-9/16" 2,000 7-1/2" 8 3/4" 5-1/4" R-26
2-9/16" 3,000/5,000 9-5/8" 8 1" 7" R-27
2-9/16" 10,000 9-1/8" 8 7/8" 6-1/4" BX-153
2-9/16" 15,000 10" 8 1" 7" BX-153
2-9/16" 20,000 12-13/16" 8 1-1/4" 9-1/2" BX-153
3-1/8" 2,000 8-1/4" 8 3/4" 5-1/2" R-31
3-1/8" 3,000 9-1/2" 8 7/8" 6-1/4" R-31
3-1/8" 5,000 10-1/2" 8 1-1/8" 7-3/4" R-35
3-1/16" 10,000 10-5/8" 8 1" 7-1/4" BX-154
3-1/16" 15,000 11-5/16" 8 1-1/8" 8" BX-154
3-1/16" 20,000 14-1/16" 8 1-3/8" 10-3/4" BX-154
4-1/16" 2,000 10-3/4" 8 7/8" 6-1/4" R-37
4-1/16" 3,000 11-1/2" 8 1-1/8" 7-1/2" R-37
4-1/16" 5,000 12-1/4" 8 1-1/8" 8-3/8" BX-155
4-1/16" 20,000 17-9/16" 8 1-3/4" 12-3/4" BX-155
5-1/8" 5,000 14-3/4" 8 1-1/2" 10-3/4" R-44
7-1/16" 2,000 14" 12 1" 7-1/2" R-45
7-1/16" 3,000 15" 12 1-1/8" 8-1/2" R-45
7-1/16" 5,000 15-1/2" 12 1-3/8" 11-1/4" R-46
7-1/16" 10,000 18-7/8" 12 1-1/2" 11-3/4" BX-156
7-1/16" 15,000 19-7/8" 16 1-1/2" 13" BX-156
7-1/16" 20,000 24-13/16" 16 2" 17-3/4" BX-156
9" 2,000 16-1/2" 12 1-1/8" 8-1/2" R-49
9" 3,000 18-1/2" 12 1-3/8" 9-1/2" R-49
9" 5,000" 19" 12 1-5/8" 12-1/2" R-50
9" 10,000 21-3/4" 16 1-1/2" 13-1/4" BX-157
9" 15,000 25-1/2" 16 1-7/8" 16" BX-157
11" 2,000 20" 16 1-1/4" 9-1/4" R-53
11" 3,000 21-1/2" 16 1-3/8" 10" R-53
11" 5,000 23" 12 1-7/8" 14-1/4" R-54
11" 10,000 25-3/4" 16 1-3/4" 15-3/8" BX-158
11" 15,000 32" 20 2" 19-1/2" BX-158
13-5/8" 2,000 22" 20 1-1/4" 9-1/2" R-57
13-5/8" 3,000 24" 20 1-3/8" 10-3/4" R-57
13-5/8" 5,000 26-1/2" 16 1-5/8" 12-3/4" BX-160
13-5/8" 10,000 30-1/4" 20 1-7/8" 17-3/4" BX-159
13-5/8" 15,000 34-7/8" 20 2-1/4" 21" BX-159
16-3/4" 2,000 27" 20 1-1/2" 10-3/4" R-65
16-3/4" 3,000 27-3/4" 20 1-5/8" 12-1/4" R-66
16-3/4" 5,000 30-3/8" 16 1-78" 14-3/4" BX-162
16-3/4" 10,000 34-5/16" 24 1-7/8" 17-3/4" BX-162
18-3/4" 5,000 35-5/8" 20 2" 18" BX-163
16-3/4" 10,000 40-15/16" 24 2-1/4" 23" BX-164
20-3/4" 3,000 33-3/4" 20 2" 15-1/4" R-74
21-1/4" 2,000 32" 24 1-5/8" 12-1/2" R-73
21-1/4" 5,000 39" 24 2" 19" BX-165
21-1/4" 10,000 45" 24 2-1/2" 24-3/4" BX-166
26-3/4" 2,000 41" 20 1-3/4" 14-1/4" BX-167
21-1/4" 3,000 43-3/8" 24 2" 17-1/2" BX-168

API 6A Type 6BX 15000PSI Blind / Welding Neck Flange

we are supplier of API 6A flanges like 1500PSI(103.5MPA) API 6A type 6BX blind/Welding Neck Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI (13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI (69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

api 6a flanges

Dimension of 1500PSI(103.5MPA) type 6BX blind/Welding Neck API 6A Flange

Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H Ring Number
1 13/16" 46.8 210 3 - 5.56 77.77 106 45.3 97.6 71.4 47.6 - 10 160.3 8 26 151
2 1/16" 53.2 220 3 - 5.95 86.23 114 50.8 111.1 82.5 54 - 10 174.6 8 26 152
2 9/16" 65.9 255 3 - 6.75 102.77 133 57.2 128.6 100 57.1 - 10 200 8 29 153
3 1/16" 78.6 290 3 - 7.54 119 154 64.3 154 122.2 63.5 - 10 230.2 8 32 154
4 1/16" 104 360 3 - 8.33 150.62 194 78.6 195.3 158.7 73 - 10 290.5 8 39 155
5 1/8" 131 420 3 9.5 9.53 176.66 225 98.5 244.5 200 81.8 6.4 16 342.9 12 42 169
7 1/16" 180.2 505 6 11.1 11.11 241.83 305 119.1 325.4 276.2 92.1 7.9 16 428.6 16 42 156
9 " 229.4 650 6 12.7 12.7 299.06 381 146.1 431.8 349.2 123.8 14.2 16 552.4 16 51 157
11" 280.2 815 6 14.3 14.29 357.23 454 187.4 584.2 427 235.7 12.7 16 711.2 20 54 158
13 5/8" 346.9 885 6 15.9 15.88 432.64 541 204.8 595.3 528.6 114.3 17.5 25 771.5 20 61 159
18 3/4" 477 1160 6 18.3 18.26 577.9 722 255.6 812.8 730.2 155.6 35.1 25 1016 20 80 164

API 6A Type 6B 2000PSI Blind / Welding Neck Flange

api 6a flanges

We are supplier of API 6A flanges like 2000PSI(13.8MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 2000PSI (13.8MPA) type 6B Blind and Welding Neck API 6A Flange

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 165 3 108 82.55 7.9 33.4 25.4 84 127 8 20 81 60.3 53.3 23
2 9/16" 65.9 190 3 127 101.6 7.9 36.6 28.6 100 149.2 8 23 88 73 63.5 26
3 1/8" 81.8 210 3 146 123.83 7.9 39.7 31.8 117 168.3 8 23 91 88.9 78.7 31
4 1/16" 108.7 275 3 175 149.23 7.9 46.1 38.1 152 215.9 8 26 110 114.3 103.1 37
5 1/8" 131 330 3 210 180.98 7.9 52.4 44.5 189 266.7 8 29 122 141.3 122.9 41
7 1/16" 181.8 355 6 241 211.15 7.9 55.6 47.6 222 292.1 12 29 126 168.3 147.1 45
9" 229.4 420 6 302 269.88 7.9 63.5 55.6 273 349.3 12 32 141 219.1 199.1 49
11" 280.2 510 6 356 323.85 7.9 71.5 63.5 343 431.8 16 35 160 273 248.4 53
13 5/8" 346.9 560 6 413 381 7.9 74.7 66.7 400 489 20 35 - - - 57
16 3/4" 426.2 685 6 508 469.9 7.9 84.2 76.2 495 603.2 20 42 - - - 65
21 1/4" 540.5 815 6 635 584.2 9.7 98.5 88.9 610 723.9 24 45 - - - 73

API 6A Type 6BX 2000PSI Blind Flange

api 6a flanges

We are supplier of API 6A flanges like 2000PSI(13.8MPA) API 6A type 6BX Blind Flange, include type 6B, 6BX with RTJ connection, pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 2000PSI (13.8MPA) type 6BX Blind API 6A Flange

Size OD C E1 G K T J1 J4 R BC N H BX
26 3/4" 1040 6 21.4 768.33 805 126.3 835.8 9.7 16 952.5 20 48 167
30" 1120 6 23 862.3 908 134.2 931.9 17.5 16 1039.8 32 45 303
API 6A Type 6B 3000PSI Blind / Welding Neck Flange
api 6a flanges

We are supplier of API 6A flanges like 3000PSI(20.7MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment..

Dimension of 3000PSI (20.7MPA) type 6B Blind and Welding Neck API 6A Flange

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.6 60.3 50 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 59.7 27
3 1/8" 81.8 240 3 156 123.83 7.9 46.1 38.1 127 190.5 8 26 109.5 88.9 74.4 31
4 1/16" 108.7 290 3 181 149.23 7.9 52.4 44.4 158.8 235 8 32 122.2 114.3 98 37
5 1/8" 131 350 3 216 180.98 7.9 58.8 50.8 190.5 279.4 8 35 134.9 141.3 122.9 41
7 1/16" 181.8 380 6 241 211.15 7.9 63.5 55.6 235 317.5 12 32 147.6 168.3 147.1 45
9" 229.4 470 6 308 269.88 7.9 71.5 63.5 298.5 393.7 12 39 169.9 219.1 189.7 49
11" 280.2 545 6 362 323.85 7.9 77.8 69.9 368.3 469.9 16 39 192.1 273 237.2 53
13 5/8" 346.9 610 6 419 381 7.9 87.4 79.4 419.1 533.4 20 39 - - - 57
16 3/4" 426.2 705 6 524 469.9 11.2 100.1 88.9 508 616 20 45 - - - 66
20 3/4" 527.8 855 6 648 584.2 12.7 120.7 108 622.3 749.3 20 54 - - - 74
API 6A Type 6B 5000PSI Blind / Welding Neck Flange
api 6a flanges

We are supplier of API 6A flanges like 5000PSI(34.5MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 5000PSI (34.5MPA) type 6B Blind and Welding Neck API 6A Flange

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.5 60.3 43.7 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 54.9 27
3 1/8" 81.8 265 3 168 136.53 7.9 55.6 47.7 133.3 203.2 8 32 125.4 88.9 67.5 35
4 1/16" 108.7 310 3 194 161.93 7.9 62 54 161.9 241.3 8 35 131.8 114.3 88.1 39
5 1/8" 131 375 3 229 193.68 7.9 81 73.1 196.8 292.1 8 42 163.5 141.3 110.3 44
7 1/16" 181.8 395 6 248 211.15 9.7 92.1 82.6 228.6 317.5 12 39 181 168.3 132.6 46
9" 229.4 485 6 318 269.88 11.2 103.2 92.1 292.1 393.7 12 45 223.8 219.1 173.8 50
11" 280.2 585 6 371 323.85 11.2 119.1 108 368.3 482.6 12 51 265.1 273.1 216.7 54
API 6A Type 6BX 10000PSI Blind / Welding Neck Flange
api 6a flanges

We are supplier of API 6A flanges like 10000PSI(69.0MPA) API 6A type 6BX blind/Welding Neck Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI (13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 10000PSI(69.0MPA) type 6BX blind/Welding Neck API 6A Flange

Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H BX
1 13/16" 46.8 185 3 - 5.56 77.77 105 42.1 88.9 65.1 48.5 - 10 146.1 8 23 151
2 1/16" 53.2 200 3 - 5.95 86.23 111 44.1 100 74.7 51.6 - 10 158.8 8 23 152
2 9/16" 65.9 230 3 - 6.75 102.77 132 51.2 120.7 92.1 57.2 - 10 184.2 8 26 153
3 1/16" 78.6 270 3 - 7.54 119 152 58.4 142.1 110.2 63.5 - 10 215.9 8 29 154
4 1/16" 104 315 3 - 8.33 150.62 185 70.3 182.6 146.1 73.1 - 10 258.8 8 32 155
5 1/8" 131 360 3 9.5 9.53 176.66 221 79.4 223.8 182.6 81 6.4 10 300 12 32 169
7 1/16" 180.2 480 6 11.1 11.11 241.83 302 103.2 301.6 254 95.3 9.7 16 403.2 12 42 156
9 " 229.4 550 6 12.7 12.7 299.06 359 123.9 374.7 327.1 93.7 9.7 16 476.3 16 42 157
11" 280.2 655 6 14.3 14.29 357.23 429 141.3 450.9 400.1 103.2 14.2 16 565.2 16 48 158
13 5/8" 346.9 770 6 15.9 15.88 432.64 518 168.3 552.5 495.3 114.3 17.5 16 673.1 20 51 159
16 3/4" 426.2 870 6 8.3 8.33 478.33 576 168.3 655.6 601.7 76.2 30.2 19 776.3 24 51 162
18 3/4" 477 1040 6 18.3 18.26 577.9 697 223.1 752.5 674.7 155.6 25.4 16 925.5 24 61 164
21 1/4" 540.5 1145 6 19.1 19.05 647.88 781 241.3 847.7 762 165.1 31.8 21 1022.4 24 67 166