API 6A FLANGE

  • Standard: API 6A
  • Material: Carbon steel: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
  • Pressure: 2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi
  • Size: 1-13/16″ to 21-1/4″


Description

Type 6B Flanges:

Type 6B flanges are of the ring joint type and are not designed for face-to-face make-up. The connection make-up bolting force reacts on the metallic ring gasket. Type 6B flanges are of through bolted or studded design. Dimensions for 6B flanges blind type shall conform to Table 36, Table 37 & Table 38 with reference to figure no. 8 on pg. no. 108 of API 6A (19 th Edition, July 2004) as applicable.

Type 6BX Flanges:

Type 6BX flanges are of the ring joint type and designed with a raised face. Depending on the tolerances, the connection make-up bolting force may react on the raised face of the flange when the gasket has been properly seated. This support prevents damage to the flange or gasket from excessive bolt torque. Therefore, one of the flanges in 6 BX connection shall have a raised face. Type 6BX flanges are of through bolted or studded design. Face-to-face contact is not necessary for the proper functioning of the 6BX flange. Dimensions for 6BX flanges blind type shall conform to Table 46 of API 6A (19 th Edition, July 2004) as applicable.

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.
API Flange, API 6A Flange Dimensions
Flange SizeWorking Pressure (PSI)Outside DiameterNumber of Bolt HolesDiameter of Bolt HolesLength of BoltsAPI Ring Gasket
1-13/16″10,0007-3/8″83/4″5-1/4″BX-151
1-13/16″15,0008-3/16″87/8″6″BX-151
1-13/16″20,00010-1/8″81″7-3/4″BX-151
2-1/16″2,0006-1/2″85/8″5/8″R-23
2-1/16″3,000/5,0008-1/2″87/8″7/8″R-24
2-1/16″10,0007-7/8″83/4″3/4″BX-152
2-1/16″15,0008-3/4″87/8″7/8″BX-152
2-1/16″20,00011-5/16″81-1/8″1-1/8″BX-152
2-9/16″2,0007-1/2″83/4″5-1/4″R-26
2-9/16″3,000/5,0009-5/8″81″7″R-27
2-9/16″10,0009-1/8″87/8″6-1/4″BX-153
2-9/16″15,00010″81″7″BX-153
2-9/16″20,00012-13/16″81-1/4″9-1/2″BX-153
3-1/8″2,0008-1/4″83/4″5-1/2″R-31
3-1/8″3,0009-1/2″87/8″6-1/4″R-31
3-1/8″5,00010-1/2″81-1/8″7-3/4″R-35
3-1/16″10,00010-5/8″81″7-1/4″BX-154
3-1/16″15,00011-5/16″81-1/8″8″BX-154
3-1/16″20,00014-1/16″81-3/8″10-3/4″BX-154
4-1/16″2,00010-3/4″87/8″6-1/4″R-37
4-1/16″3,00011-1/2″81-1/8″7-1/2″R-37
4-1/16″5,00012-1/4″81-1/8″8-3/8″BX-155
4-1/16″20,00017-9/16″81-3/4″12-3/4″BX-155
5-1/8″5,00014-3/4″81-1/2″10-3/4″R-44
7-1/16″2,00014″121″7-1/2″R-45
7-1/16″3,00015″121-1/8″8-1/2″R-45
7-1/16″5,00015-1/2″121-3/8″11-1/4″R-46
7-1/16″10,00018-7/8″121-1/2″11-3/4″BX-156
7-1/16″15,00019-7/8″161-1/2″13″BX-156
7-1/16″20,00024-13/16″162″17-3/4″BX-156
9″2,00016-1/2″121-1/8″8-1/2″R-49
9″3,00018-1/2″121-3/8″9-1/2″R-49
9″5,000″19″121-5/8″12-1/2″R-50
9″10,00021-3/4″161-1/2″13-1/4″BX-157
9″15,00025-1/2″161-7/8″16″BX-157
11″2,00020″161-1/4″9-1/4″R-53
11″3,00021-1/2″161-3/8″10″R-53
11″5,00023″121-7/8″14-1/4″R-54
11″10,00025-3/4″161-3/4″15-3/8″BX-158
11″15,00032″202″19-1/2″BX-158
13-5/8″2,00022″201-1/4″9-1/2″R-57
13-5/8″3,00024″201-3/8″10-3/4″R-57
13-5/8″5,00026-1/2″161-5/8″12-3/4″BX-160
13-5/8″10,00030-1/4″201-7/8″17-3/4″BX-159
13-5/8″15,00034-7/8″202-1/4″21″BX-159
16-3/4″2,00027″201-1/2″10-3/4″R-65
16-3/4″3,00027-3/4″201-5/8″12-1/4″R-66
16-3/4″5,00030-3/8″161-78″14-3/4″BX-162
16-3/4″10,00034-5/16″241-7/8″17-3/4″BX-162
18-3/4″5,00035-5/8″202″18″BX-163
16-3/4″10,00040-15/16″242-1/4″23″BX-164
20-3/4″3,00033-3/4″202″15-1/4″R-74
21-1/4″2,00032″241-5/8″12-1/2″R-73
21-1/4″5,00039″242″19″BX-165
21-1/4″10,00045″242-1/2″24-3/4″BX-166
26-3/4″2,00041″201-3/4″14-1/4″BX-167
21-1/4″3,00043-3/8″242″17-1/2″BX-168

API 6A TYPE 6BX 15000PSI BLIND / WELDING NECK FLANGE

api 6a flanges

DIMENSION OF 1500PSI(103.5MPA) TYPE 6BX BLIND/WELDING NECK API 6A FLANGE

SizeBODCE1QGKTJ1J2J3J4RBCNHRing Number
1 13/16″46.821035.5677.7710645.397.671.447.610160.3826151
2 1/16″53.222035.9586.2311450.8111.182.55410174.6826152
2 9/16″65.925536.75102.7713357.2128.610057.110200829153
3 1/16″78.629037.5411915464.3154122.263.510230.2832154
4 1/16″10436038.33150.6219478.6195.3158.77310290.5839155
5 1/8″13142039.59.53176.6622598.5244.520081.86.416342.91242169
7 1/16″180.2505611.111.11241.83305119.1325.4276.292.17.916428.61642156
9 “229.4650612.712.7299.06381146.1431.8349.2123.814.216552.41651157
11″280.2815614.314.29357.23454187.4584.2427235.712.716711.22054158
13 5/8″346.9885615.915.88432.64541204.8595.3528.6114.317.525771.52061159
18 3/4″4771160618.318.26577.9722255.6812.8730.2155.635.12510162080164

API 6A TYPE 6B 2000PSI BLIND / WELDING NECK FLANGE

api 6a flanges

DIMENSION OF 2000PSI (13.8MPA) TYPE 6B BLIND AND WELDING NECK API 6A FLANGE

SizeBODCKPETQXBCNHLNHLJLR/RX
2 1/16″53.2165310882.557.933.425.4841278208160.353.323
2 9/16″65.91903127101.67.936.628.6100149.2823887363.526
3 1/8″81.82103146123.837.939.731.8117168.38239188.978.731
4 1/16″108.72753175149.237.946.138.1152215.9826110114.3103.137
5 1/8″1313303210180.987.952.444.5189266.7829122141.3122.941
7 1/16″181.83556241211.157.955.647.6222292.11229126168.3147.145
9″229.44206302269.887.963.555.6273349.31232141219.1199.149
11″280.25106356323.857.971.563.5343431.81635160273248.453
13 5/8″346.956064133817.974.766.7400489203557
16 3/4″426.26856508469.97.984.276.2495603.2204265
21 1/4″540.58156635584.29.798.588.9610723.9244573

API 6A TYPE 6BX 2000PSI BLIND FLANGE

api 6a flanges

DIMENSION OF 2000PSI (13.8MPA) TYPE 6BX BLIND API 6A FLANGE

SizeODCE1GKTJ1J4RBCNHBX
26 3/4″1040621.4768.33805126.3835.89.716952.52048167
30″1120623862.3908134.2931.917.5161039.83245303
API 6A TYPE 6B 3000PSI BLIND / WELDING NECK FLANGE
api 6a flanges

DIMENSION OF 3000PSI (20.7MPA) TYPE 6B BLIND AND WELDING NECK API 6A FLANGE

SizeBODCKPETQXBCNHLNHLJLR/RX
2 1/16″53.2215312495.257.946.138.1104.8165.1826109.660.35024
2 9/16″65.92453137107.957.949.341.3123.8190.5829112.77359.727
3 1/8″81.82403156123.837.946.138.1127190.5826109.588.974.431
4 1/16″108.72903181149.237.952.444.4158.8235832122.2114.39837
5 1/8″1313503216180.987.958.850.8190.5279.4835134.9141.3122.941
7 1/16″181.83806241211.157.963.555.6235317.51232147.6168.3147.145
9″229.44706308269.887.971.563.5298.5393.71239169.9219.1189.749
11″280.25456362323.857.977.869.9368.3469.91639192.1273237.253
13 5/8″346.961064193817.987.479.4419.1533.4203957
16 3/4″426.27056524469.911.2100.188.9508616204566
20 3/4″527.88556648584.212.7120.7108622.3749.3205474
API 6A TYPE 6B 5000PSI BLIND / WELDING NECK FLANGE
api 6a flanges

DIMENSION OF 5000PSI (34.5MPA) TYPE 6B BLIND AND WELDING NECK API 6A FLANGE

SizeBODCKPETQXBCNHLNHLJLR/RX
2 1/16″53.2215312495.257.946.138.1104.8165.1826109.560.343.724
2 9/16″65.92453137107.957.949.341.3123.8190.5829112.77354.927
3 1/8″81.82653168136.537.955.647.7133.3203.2832125.488.967.535
4 1/16″108.73103194161.937.96254161.9241.3835131.8114.388.139
5 1/8″1313753229193.687.98173.1196.8292.1842163.5141.3110.344
7 1/16″181.83956248211.159.792.182.6228.6317.51239181168.3132.646
9″229.44856318269.8811.2103.292.1292.1393.71245223.8219.1173.850
11″280.25856371323.8511.2119.1108368.3482.61251265.1273.1216.754
API 6A TYPE 6BX 10000PSI BLIND / WELDING NECK FLANGE
api 6a flanges

DIMENSION OF 10000PSI(69.0MPA) TYPE 6BX BLIND/WELDING NECK API 6A FLANGE

SizeBODCE1QGKTJ1J2J3J4RBCNHBX
1 13/16″46.818535.5677.7710542.188.965.148.510146.1823151
2 1/16″53.220035.9586.2311144.110074.751.610158.8823152
2 9/16″65.923036.75102.7713251.2120.792.157.210184.2826153
3 1/16″78.627037.5411915258.4142.1110.263.510215.9829154
4 1/16″10431538.33150.6218570.3182.6146.173.110258.8832155
5 1/8″13136039.59.53176.6622179.4223.8182.6816.4103001232169
7 1/16″180.2480611.111.11241.83302103.2301.625495.39.716403.21242156
9 “229.4550612.712.7299.06359123.9374.7327.193.79.716476.31642157
11″280.2655614.314.29357.23429141.3450.9400.1103.214.216565.21648158
13 5/8″346.9770615.915.88432.64518168.3552.5495.3114.317.516673.12051159
16 3/4″426.287068.38.33478.33576168.3655.6601.776.230.219776.32451162
18 3/4″4771040618.318.26577.9697223.1752.5674.7155.625.416925.52461164
21 1/4″