Formed bellows seal are widely used in the pumps for waste water, chemical industries and refineries with big size solids in the medium.
OPERATING LIMITS
Temperature: -40℃～150℃
Pressure: ≤2.5MPa
Speed: ≤25m/s
| Size | D1 | D2 | D3 | d1 | d2 | L1 | L2 | L3 |
| 25 | 39 | 37.0 | 32.2 | 25 | 26.0 | 58.0 | 50.65 | 38.0 |
| 30 | 46 | 45.0 | 40.2 | 30 | 32.5 | 60.0 | 52.65 | 40.0 |
| 35 | 49 | 50.0 | 45.2 | 35 | 36.5 | 60.0 | 52.65 | 40.0 |
| 38 | 55 | 58.0 | 50.5 | 38 | 39.5 | 66.0 | 58.10 | 44.0 |
| 40 | 58 | 58.0 | 50.5 | 40 | 41.5 | 66.0 | 58.10 | 44.0 |
| 45 | 63 | 63.0 | 55.5 | 45 | 46.5 | 67.5 | 59.60 | 45.5 |
| 50 | 68 | 67.0 | 59.0 | 50 | 51.5 | 67.5 | 60.20 | 45.5 |
| 55 | 73 | 73.0 | 65.0 | 55 | 56.5 | 72.0 | 63.70 | 48.0 |
| 60 | 78 | 78.0 | 69.8 | 60 | 62.0 | 72.0 | 63.70 | 48.0 |
| 65 | 85 | 85.0 | 76.5 | 65 | 67.5 | 72.0 | 63.70 | 48.0 |
| 70 | 92 | 92.0 | 82.5 | 70 | 72.5 | 74.0 | 66.30 | 49.0 |
| 75 | 95 | 94.0 | 86.5 | 75 | 77.5 | 77.5 | 68.60 | 52.5 |
| 80 | 99 | 98.0 | 91.0 | 78 | 82.0 | 77.5 | 68.60 | 52.5 |
| 85 | 105 | 104.0 | 96.5 | 85 | 87.0 | 78.0 | 69.10 | 53.0 |
| 90 | 112 | 111.5 | 103.0 | 90 | 92.5 | 78.0 | 69.70 | 53.0 |
