Características
- Liquid-lubricated double seal for top-entry drives
- Cartridge unit
- Self-closing on the product side
- For stepped and unstepped shafts
- Unbalanced
- Independent of direction of rotation
- Multiple springs rotating
Ventajas
- Ready-to-fit and factory-tested units
- The M481K and its variants will remain closed even during pressure variations or pressure reversal. Operation is possible with buffer fluid (p1max = 6 bar (87 PSI)) or pressurized with barrier fluid as double seal
- Available with or without bearing
- Suitable for standardizations
- Seal can be applied at higher pressure and rotating speed than specified by DIN
Operating range
Shaft diameter:
d1 = 40 … 220 mm (1.57″ …. 8.66″)
Presión:
p1 = vacuum … 16 bar (232 PSI),
p3 = max. 18 bar (261 PSI)
Temperature:
t1 = -40 °C … +200 (350*) °C
(-40 °F … +392 (662*) °F)
Sliding velocity:
vg = 0 … 5 m/s (0 … 16 ft/s)
For applications beyond this range, please inquire.
* with cooling flange
! It should be noted that the extremal values of each operating parameter cannot be applied at the same time because of their interaction.
Materiales
Seal faces: Carbon graphite or Silicon carbide, FDA conform
Seats: Silicon carbide, FDA conform
Secondary seals and metallic parts acc. to application and customers’ requirement.
