Adaptor bellow flange are used to fit a bellow to a flange having different bolt configuration. These flanges are made of cast iron and are supplied with a spilt ring.
These are particularly used to fit a bellow with a non-glass equipment like Glass-lined Reactor etc. These are used in FBF, VBF, type PTFE bellows.
Adaptor bellow flanges are generally supplied undrilled. However, it specified these can be supplied drilled as per Table E Table F and ASA 150 standards.
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Undrilling flanges Cat.Ref. | DN | D | D1 | D2 | L | BFA1* | 25 | 115 | 43 | 51 | 7 | BFA1.5* | 40 | 150 | 58 | 66 | 7 | BFA2* | 50 | 165 | 70 | 81 | 7 | BFA3* | 80 | 200 | 101 | 112 | 7 | BFA4* | 100 | 220 | 134 | 148 | 8 | BFA6* | 150 | 285 | 186 | 196 | 8 | BFA9* | 225 | 395 | 260 | 2852 | 8 | BFA12 | 300 | 445 | 342 | 363 | 10 |
Drilled to Table E Cat.Ref. | pcd | n x do | BFA1/E | 82 | 4 x 12ø | BFA1.5/E | 98 | 4 x 12ø | BFA2/E | 114 | 4 x 16ø |
BFA3/E | 146 | 4 x 16ø | BFA4/E | 178 | 8 x 16ø | BFA6/E | 235 | 8 x 19ø | BFA9/E | 324 | 12 x 19ø | BFA12/E | 406 | 12 x 23 |
Drilled to Table F Cat.Ref. | pcd | n x do | BFA1/F | 87 | 4 x 16ø | BFA1.5/F | 105 | 4 x 16ø | BFA2/F | 127 | 4 x 16ø | BFA3/F | 165 | 8 x 16ø | BFA4/F | 190 | 8 x 16ø | BFA6/F | 260 | 12 x 19ø | BFA9/F | 356 | 12 x 23ø | BFA12/F | 438 | 12 x 23 |
Drilled to ASA 150 Cat.Ref. | pcd | n x do | BFA1/A | 79 | 4 x 16ø | BFA1.5/A | 98 | 4 x 16ø | BFA2/A | 121 | 4 x 19ø | BFA3/A | 152 | 4 x 19ø | BFA4/A | 190 | 8 x 19ø | BFA6/A | 241 | 8 x 19ø | BFA9/A | 298 | 8 x 19ø | BFA12/A | 432 | 12 x 23 |
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