It’s a rubber bellow seal with the drive of the rotating part made by the friction between the shaft and inside diameter of the rubber bellow. The common materials for the faces are SiC/SiC and Carbon/SiC. The rubber parts can be supplied with material NBR, EPDM and FPM. The metal parts are supplied in stainless steel 304 or 316. It has a great flexibility because can accept more better small shaft misalignment and small axial movement.
PDF| p ≤ | 10 bar |
|---|---|
| t = | –10 ÷ 120°C |
| v ≤ | 10 m/s |