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API 6A Flange

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API 6A Flange

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.

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Type

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Material

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Standard

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Size

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Pressure

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Packing

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Surface Treatment

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E-catalogue

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Usage

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Welding neck Flanges, Blind Flanges with Ring Joint Connection

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Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.

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API 6A

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1-13/16″ to 21-1/4″

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2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi

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No Fumigate or Fumigate Plywood/Wood Pallet or Case

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Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.

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Available , please visit catalogue of flange

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Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

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LAP JOINT FLANGE

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BLIND FLANGE

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Specification of API Flange, API 6A Flange

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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

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