Features
- For unstepped shafts
- Single seal
- Balanced
- Independent of direction of rotation
- Metal bellows rotating
Advantages
- For extreme cold temperature ranges
- No dynamically loaded O-Ring
- Self cleaning effect
- Short installation length possible
- Pumping screw for highly viscous media available (dependant on direction of rotation).
Operating range
Shaft diameter:
d1 = 24 … 150 mm (0.94″ … 6“)
Externally pressurized:
p1 = … 25 bar (363 PSI)
Internally pressurized:
p1 = 10 bar (145 PSI ),
stationary seat lock necessary.
Temperature:
t = -100 °C … +100 °C (-148 °F … 212) °F
Sliding velocity: vg = 20 m/s (66 ft/s)
Materials
Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q12)
Seat: Silicon carbide (Q1)
Bellows: Inconel® 718 hardened (M6), Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel (G), Hastelloy® C-4 (M)