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  Shaft Sealings | Mechanical Seals
 
Mechanical Seals


If very high demands are placed on the shaft seal, mechanical seals of various manufacturers and designs can be provided. Due to their design and special application conditions, pumps of product groups D, E and CS are generally equipped with single-acting or double-acting mechanical seals.

  • Practically free of leaks
  • Maintenance-free
  • Low-wear
  • Highly resistant to pressure and vacuum
  • Safe, ecologically sound sealing when hazardous material is involved.

Mechanical Seal GA
Conveying Materials | Low to highly-viscous, containing solids, abrasive
Pressure Range | -0.15 to +12 bar
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  Description

  • Single-acting mechanical seal
  • Elastomer bellows
  • Independent of the direction of rotation
  • Not pressure-relieved

Note
Municipal and industrial waste-water treatment, food industry

  

Mechanical Seal GB
Conveying Materials | Low to highly-viscous, free of solids to containing a low degree of solids
Pressure Range | -0.15 to 10 bar
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  Description

  • Single-acting mechanical seal
  • Conical spring
  • Dependent of the direction of rotation
  • Not pressure-relieved

Note
Cost-efficient standard seal for the food industry

  

Mechanical Seal GC
Conveying Materials | Low to highly-viscous, containing a high degree of solids, abrasive
Pressure Range | -0.15 to +25 bar
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  Description

  • Single-acting mechanical seal
  • Metal bellows
  • Dependent of the direction of rotation
  • Not pressure-relieved

Note
Municipal and industrial waste-water treatment, paint and chemical industries

  

Mechanical Seal GD
Conveying Materials | Low to highly-viscous, free of solids to containing a low degree of solids
Pressure Range | -0.15 to +25 bar
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  Description

  • Single-acting mechanical seal
  • Wave spring/multiple spring
  • Independent of the direction of rotation
  • Stationary seat stop
  • Not pressure-relieved

Note
Chemical/pharmaceutical industry

  

Option M
Conveying Materials | Adhesive, crystallizing
Pressure Range | According to the specifications GA-GD. Vacuum up to -0.5 bar
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  Description

  • For GA-GD design mechanical seal with Quench

Note
Unpressurized Quench vessel with suitable fluid, lubrication upon vacuum and vertical position

  

Mechanical Seal KD
Conveying Materials | Low to highly-viscous, free of solids to containing solids, abrasive, adhesive, crystallizing, aggressive, toxic
Pressure Range | -1 to +25 bar
Zoom
  Description

  • Double-acting mechanical seal
  • Wave spring/multiple spring
  • Independent of the direction of rotation
  • Stationary seat stop
  • Not pressure-relieved

Note
Sealing liquid pressure at least 1.5 bar above the pressure to be sealed. The sealing liquid must be compatible to the conveying medium.

  

Mechanical Seal LA
Conveying Materials | Low to highly-viscous, free of solids to containing solids, abrasive, adhesive, crystallizing, aggressive, toxic
Pressure Range | -1 to +12 bar
Zoom
  Description

  • Back-to-back mechanical seal
  • Elastomer bellows
  • Independent of the direction of rotation
  • Not pressure-relieved

Note
Sealing liquid pressure at least 1.5 bar above the pressure to be sealed. The sealing liquid must be compatible to the conveying medium.

  

Mechanical Seal 4E
Conveying Materials | Low to highly-viscous, containing solids, abrasive, adhesive, crystallizing
Pressure Range | -1 to +12 bar
Zoom
  Description

  • Mechanical seal in the form of a cartridge unit
  • Single-acting
  • With Quench
  • Independent of the direction of rotation
  • Double pressure-relieved

Note
Municipal and industrial waste-water treatment, chemical/petrochemical industry

  

Mechanical Seal IE
Conveying Materials | Low to highly-viscous, free of solids to containing solids, abrasive, adhesive, crystallizing, aggressive, toxic
Pressure Range | -1 to +25 bar
Zoom
  Description

  • Mechanical seal in the form of a cartridge unit
  • Double-acting
  • Independent of the direction of rotation
  • Double pressure-relieved

Note
Municipal and industrial waste-water treatment, chemical/petrochemical industry

  
 
  Shaft Sealings

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Mechanical Seals