M481K

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M481K

M481K
Request product
ItemDescription
1Seal face, atmosphere side
2Seal face, product side
6, 7, 13, 14, 15O-Ring
11Seat, product side
12Seat, atmosphere side

M481K

Features

  • 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

Advantages

  • 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")

Pressure:
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.

Materials

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.

Standards and approvals

  • FDA
  • ATEX
  • DIN 28138 (mechanical seals for agitator shafts)
  • DIN 28136 T2 (for steel vessels)
  • DIN 28141 (flange connection for steel vessels)
  • DIN 28154 (shaft end for steel vessels)
  • Compliant to TA Luft (German Clean Air Act)

Notes

Options:
  • Cooling resp. heating flange
  • Leakage drain
  • Flush
  • Polymerization barrier
  • Axial expansion joint (shaft movement)
  • Wiper ring (shaft movement)

Please inquire.

Recommended piping plans

Closed circuit EagleBurgmann TS system, open circuit EagleBurgmann SPA, SPN

Product links:
EagleBurgmann TS1000
EagleBurgmann TS2000
EagleBurgmann SPA
EagleBurgmann SPN manual
EagleBurgmann SPN automatic


Product variants

M481KL
Variant with integrated floating bearing

M451K
Variant for unstepped shafts or customer-specific connection dimensions. The seal is available for any diameter. Further customer-specific adaptations are also possible.

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  • Multiple springs rotating

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The Eagleburgmann Group

Sealing technology for plants and machines

EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.

Mechanical seals and more

Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.

What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.

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