These bellows are used in the installation of glass equipment for the following purposes :
to minimize the transfer of vibrations from the rotating equipment which is connected to the glass assembly.
These are similar to the bellows to accommodate the thermal expansion of any metallic (non-glass) equipment which are connected to the glass pipeline.
for glass-to-glass in construction, but having an adaptor below flange at one end.
Generally, this adaptor flange is supplied undrilled so that it can be drilled as per the configuration of the mating flange.
However, this adaptor below the flange can be supplied drilled AS per “Table E”, “Table F” or “ASA 150” standards, if Specified.
| Cat.Ref. Undrilled | Cat.Ref. TABLE E | Cat.Ref. TABLE F | Cat.Ref. ASA 150 | DN | D | L |
| FBF1* | FBF1/E | FBF1/F | FBF1/A | 25 | 115 | 60 |
| FBF1.5* | FBF1.5/E | FBF1.5/F | FBF1.5/A | 40 | 150 | 65 |
| FBF2* | FBF2/E | FBF2/F | FBF2/A | 50 | 165 | 65 |
| FBF3* | FBF3/E | FBF3/F | FBF3/A | 80 | 200 | 65 |
| FBF4* | FBF4/E | FBF4/F | FBF4/A | 100 | 220 | 65 |
| FBF6* | FBF6/E | FBF6/F | FBF6/A | 150 | 285 | 65 |
| FBF9* | FBF9/E | FBF9/F | FBF9/A | 225 | 395 | 65 |
| FBF12 | FBF12/E | FBF12/F | FBF12/A | 300 | 445 | 65 |
Vacuum Bellows
| Cat.Ref. Undrilled | Cat.Ref. TABLE E | Cat.Ref. TABLE F | Cat.Ref. ASA 150 | DN | D | L |
| VBF3* | VBF3/E | VBF3/F | VBF3/A | 80 | 200 | 70 |
| VBF4* | VBF4/E | VBF4/F | VBF4/A | 100 | 220 | 70 |
| VBF6* | VBF6/E | VBF6/F | VBF6/A | 150 | 285 | 70 |
| VBF9* | VBF9/E | VBF9/F | VBF9/A | 225 | 395 | 70 |
| VBF12 | VBF12/E | VBF12/F | VBF12/A | 300 | 445 | 70 |
* marked items are available fast.
