Metal Bellow Seals

texcoBrand

 

UFL650

UFL650
Mechanical Seal for plain shafts, stationary bellows
  • Metal Bellows
  • Single seal
  • Balanced
  • Independent of direction of rotation

The UFL650 mechanical seals are specially developed for high temperature applications with wide range of sliding velocities. Its torque transmission exerts no strain on the bellows. This seal design requires no elastomer secondary seals.

Operating Limits

Shaft diameter: 
d1 = 16 ... 100 mm (0.63" ... 4"), (>100 mm on request)
Externally pressurized: 
p1 = 25 bar (363 PSI), (higher pressure possible, please inquire)
Internally pressurized:
p1 <120 °C (248 °F) 10 bar (145 PSI), 
p1 <220 °C (428 °F) 5 bar (72 PSI), 
p1 <400 °C (752 °F) 3 bar (44 PSI)
Stationary seal lock necessary.
t = -20 °C...400°C (-4 °F...+752°F)
vg = 50 m/s (165 ft/s)

Details

ItemPart No - DIN 24250Description 
1.1 472 and 481 Seal Face and Bellow Unit
1.2 400.1 Flat gasket
2 475 Seat