Mechanical Seals UFL850N

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

 


UFL850N
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