Figure 1
MU-eight and previous equipment

35 % reduction in total length achieved for 105 mm diameter with minimal metal housing
Figure 2
MU-eight and previous equipment

Increased distance between bearings enhances the shaft runout suppression
MU-eight

MU-eight

Features

  • Cartridge unit
  • Double seal with integrated bearing
  • Stationary springs, balanced

Advantages

  • Compact agitator seal
  • - Compact cartridge design permits the use of smaller agitators than with the previous equipment (Figure 1)
    - Smaller shaft diameter offers design flexibility to OEMs

  • Suppressing effect on shaft runout
  • - Shorter distance between sliding face and bearing reduces shaft runout and stabilizes seal performance (Figure 1)
    - Increased distance between bearings enhances the shaft runout suppression (Figure 2)

  • Enhanced sealing performance
  • - Damage risk to seal faces is reduced as balanced structure minimizes load on the faces
    - Secured sealing properties with stationary type of mechanical seal
    - Floating sliding materials avoid the effects of flange heat deformation

  • Operating cost benefits
  • - Common seal units mean fewer spare parts need to be kept in stock
    - Flexible retrofitting: can replace existing seal unit or gland packing

Operating range

Pressure: p = vacuum … 10 bar (145 PSI)
Temperature: t = Maximum 200 °C (392 °F)
Sliding velocity: vg = 1 m/s (3 ft/s)

* For further details, please contact EagleBurgmann Japan

Materials

Seal face:
Carbon (atmosphere side, product side)
Seat: Silicon carbide (SiC)
O-Ring: Kalrez®
Metal parts in contact with vessel media: Stainless steel (Type 316L)

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