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PTFE bellow seals T91,equals to WB2,can be used for pumps.
The details as followed:
| specification | d | D | D1 | D2 | L1 | L2 | L3 |
| T91-1" | 25.4 | 60 | 54 | 42.86 | 17.5 | 45 | 42 |
| T91-1 1/8" | 28.6 | 67 | 60 | 46.03 | 27 | 45 | 42 |
| T91-1 1/4" | 31.75 | 69 | 65 | 50.8 | 27 | 45 | 42 |
| T91-1 3/8" | 34.93 | 72 | 68 | 53.98 | 27 | 45 | 42 |
| T91-1 1/2" | 38.1 | 76 | 71 | 57.15 | 27 | 45 | 42 |
| T91-1 5/8" | 41.28 | 80 | 78 | 63.5 | 27 | 45 | 42 |
| T91-1 3/4" | 44.45 | 84 | 81 | 66.68 | 27 | 46 | 44 |
| T91-1 7/8" | 47.63 | 86 | 84 | 69.85 | 27 | 46 | 44 |
| T91-2" | 50.8 | 90 | 87 | 73.03 | 27 | 46 | 46 |
| T91-2 1/8" | 53.98 | 95 | 97 | 79.38 | 33.5 | 46 | 46 |
| T91-2 1/4" | 57.15 | 98 | 100 | 82.55 | 33.5 | 46 | 46 |
| T91-2 3/8" | 60.3 | 100 | 103 | 85.73 | 33.5 | 46 | 46 |
| T91-25 | 25 | 60 | 60 | 47 | 27 | 45 | 42 |
| T91-30 | 30 | 67 | 67 | 53 | 27 | 45 | 42 |
| T91-32 | 32 | 69 | 64 | 50.7 | 27 | 45 | 42 |
| T91-35 | 35 | 72 | 70 | 57 | 27 | 45 | 42 |
| T91-40 | 40 | 78 | 76 | 62 | 27 | 45 | 42 |
| T91-45 | 45 | 84 | 82 | 67 | 27 | 46 | 44 |
| T91-50 | 50 | 88 | 86 | 72 | 27 | 46 | 46 |
| T91-55 | 55 | 95 | 90 | 77 | 27 | 46 | 46 |
| T91-60 | 60 | 100 | 95 | 82 | 27 | 46 | 46 |
| T91-65 | 65 | 105 | 100 | 87 | 27 | 46 | 46 |
If you have any question, please don't hesitate to contact me.
fine PTFE bellow seals T91