Bellow flanges are used to fit a bellow to a glass component.
These are made of cast iron and are used in FBN, VB, FB type
bellows. These are provided with two holes at 180° for
distance-locking bolts and are supplied with a split ring.
| Cat. Ref. | DN | D | D1 | D3 | L | L1 | L2 |
| BF1* BF1.5* BF2* BF3* BF4* BF6* BF9* BF12 |
25 40 50 80 100 150 225 300 |
95 110 120 155 200 275 350 425 |
43 58 70 101 134 186 260 342 |
51 66 81 112 148 196 282 363 |
33 45 57 84 113 164 234 310 |
7 7 7 7 8 8 8 10 |
6 6 6 6 6 6 6 8 |
Drilling details
| Cat. Ref. | PCD | n x dØ | n x d1Ø |
| BF1 BF1.5 BF2 BF3 BF4 BF6 BF9 BF12 |
70 86 98 133 178 254 310 395 |
3 x 9Ø 3 x 9Ø 3 x 9Ø 6 x 9Ø 6 x 9Ø 6 x 9Ø 8 x 11Ø 12 x 11Ø |
2 x 9Ø 2 x 9Ø 2 x 9Ø 2 x 9Ø 2 x 9Ø 2 x 9Ø 2 x 11Ø 2 x 11Ø |
* marked items are available fast.
