Mechanical Seal for plain shafts, bellows rotating
- For unstepped shafts
- Single seal
- Balanced
- Independent of direction of rotation
- Metal bellows rotating
Mechanical seals in the UF850N series have a universal field of application. They are designed for extreme temperatures for high viscous medias. There is no dynamic O-ring and therefore a UFL850N seal will never hang up.
Operating Range
Shaft diameter:d1 = 16 … 100 mm (0.63" … 4")
Externally pressurized:
p1 = … 25 bar (363 PSI)
Internally pressurized:
p1 <120 °C (248 °F) 10 bar (145 PSI)
p1 <220 °C (428 °F) 5 bar (72 PSI)
Stationary seal lock necessary.
t = -40 °C … +220 °C (-40 °F … 428) °F
vg = 20 m/s (66 ft/s)
Details
| Item | Part No - DIN 24250 | Description |
|---|---|---|
| 1.1 | 472 and 481 | Seal Face and Bellow Unit |
| 1.2 | 412.1 | O-Ring |
| 1.3 | 904 | Set screw |
| 2 | 475 | Seat (G9) |
| 3 | 412.2 | O-Ring |
