MD291

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MD291

MD291
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Item Description
1, 4 Seal face
2, 5, 8, 11, 17 O-Ring
3, 6 Spring
7 Seat
9 Collar
10 Gasket
12, 21 Set screw
13, 15, 18, 20 Pin
14 Seal cover
16 Shaft sleeve
19 Drive collar
22 Assembly fixture
23 HSH cap screw

MD291

Features

  • Cartridge design
  • Balanced
  • Ultra compact design
  • Double seal
  • Independent of direction of rotation
  • Inboard seal can withstand both forward and back pressures
  • Stationary, inside mounted type
  • Springs do not contact the liquid

Advantages

  • Equipped with flushing, quenching, and drainports as standard
  • The cooling system where the water is directly injected onto the seal faces provides the highest cooling efficiency

Operating range

Pressure: p = vacuum … 10 bar (145 PSI)
Temperature:
t = -20 °C … 160 °C (-4 °F … 320 °F) (oil),
0 °C … 60 °C (32 °F … 140 °F) (water)
Sliding velocity: vg = 20 m/s (66 ft/s)
Viscosity: … 1 Pa·s
Solids content: … 10 %

Materials

Seal face (inboard side): Silicon carbide (Q1)
Seal face (atmosphere side): High density carbon graphite
Seat: Silicon carbide (Q1)
Metal parts: CrNiMo steel (G)
Secondary seals: FKM (V)

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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.

EagleBurgmann WORLDWIDE