Features
- Single seal
- Balanced
- Independent of direction of rotation
- Stationary metal bellows
Advantages
- For high or low temperature applications
Operating range
Pressure (single ply bellows):
p = vacuum … 20 bar ( … 290 PSI)
Pressure (two ply bellows):
p = vacuum … 35 bar ( … 508 PSI)
Temperature:
t = -240 °C … +425 °C
(-400 °F … +797 °F)
Sliding velocity: vg = … 50 m/s (164 ft/s)
Viscosity: … 1 Pa·s
Materials
Seal face: High density carbon graphite
Seat: Silicon carbide (Q2)
Bellows: Inconel® 718 (M6)
Secondary seals: Graphite
Metal parts: 1.4404, Carpenter® 42 (T4)