Type 326
  • Stationary double cartridges in "floating" design
  • Motion tolerances
    Ø <70
    axial ± 2 mm (0.08")
    radial ± 0,5 mm (0.02")
    Ø >70
    axial ± 2 mm(0.08")
    radial ± 0,8 mm (0.03")
     
  • Venting option
  • Tandem-active arrangement

Convincing Arguments!

On exceptionally large pumps, agitators, mixers, autoclaves, filters, calenders, fermenters and similar units with large shafts there is often a tendency for the shafts to wander well off center. This is evident not only in axial and radial movements but also in pendulating movements.

Conventional mechanical seals cannot cope with these extreme conditions. Additional bearings are often used therefore in the seal chambers. Apart from being far more expensive these designs will immediately fail if the bearings are damaged prematurely due to overloading.

For these applications DEPAC offers a design with "floating" faces which absorb these extreme movements in the seal itself and still hold the faces together with the same pressure conditions. These mechanical seals work reliably and completely independently of any shaft movements.
Notes
Other dimensions for special applications and for different shaft sizes and motion tolerances are available on request.

 

  • Stationary design principle
  • Cartridge mounted
  • EXTREME motion tolerances
  • Venting option
  • Full pressure reversability
  • Self-closing in case of pressure reversal
  • Double balanced
  • Shock and vibriation- dampend faces
  • Axial or radial 1/4" NPT barrier fluid connections

 

RANGES OF APPLICATION
Pressure 700 mm Hg (28" HG), 28 bar (420 PSI)
Pressure table atmosphere = 0 bar (0 PSI)
Medium pressure Barrier pressure
28 bar (420 PSI) * 0
28 bar (420 PSI) 28 bar (420 PSI)
0 28 bar (420 PSI)
* Only for lubricating liquids
Temperature Depends on the elastomer
Speed 25 m/sec. (5000 FKM)
   
SIZES
Dshaft 24 ... 200 mm
  1" ... 7 1/2"
   
MATERIALS
Metals DIN 1.4571, 316 SS
Springs Hastelloy C
Faces CA, SC, SSIC, TC
O-Rings FKM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.
   
Other sizes, materials or design versions on request.

 





Type 365
  • Stationary double cartridges in "floating" design
  • Motion tolerances
    Axial and radial ± 2.5 mm (0.098")
  • Venting option
  • Tandem-active arrangement

Convincing Arguments!

On exceptionally large pumps, agitators, mixers, autoclaves, filters, calenders, fermenters and similar units with large shafts there is often a tendency for the shafts to wander well off center. This is evident not only in axial and radial movements but also in pendulating movements.

Conventional mechanical seals cannot cope with these extreme conditions. Additional bearings are often used therefore in the seal chambers. Apart from being far more expensive these designs will immediately fail if the bearings are damaged prematurely due to overloading.

For these applications DEPAC offers a design with "floating" faces which absorb these extreme movements in the seal itself and still hold the faces together with the same pressure conditions. These mechanical seals work reliably and completely independently of any shaft movements.
Notes
Other dimensions for special applications and for different shaft sizes and motion tolerances are available on request.

 

  • Stationary design principle
  • Cartridge mounted
  • EXTREME motion tolerances
  • Venting option
  • Full pressure reversability
  • Self-closing in case of pressure reversal
  • Double balanced
  • Shock and vibriation- dampend faces
  • Axial or radial 1/4" NPT barrier fluid connections

 

RANGES OF APPLICATION
Pressure 700 mm Hg (28" HG), 28 bar (420 PSI)
Pressure table atmosphere = 0 bar (0 PSI)
Medium pressure Barrier pressure
28 bar (420 PSI) * 0
28 bar (420 PSI) 28 bar (420 PSI)
0 28 bar (420 PSI)
* Only for lubricating liquids
Temperature Depends on the elastomer
Speed 25 m/sec. (5000 FKM)
   
SIZES
Dshaft 24 ... 200 mm
  1" ... 7 1/2"
   
MATERIALS
Metals DIN 1.4571, 316 SS
Springs Hastelloy C
Faces CA, SC, SSIC, TC
O-Rings FKM, EPDM, PTFE, FEP encaps., Chemraz, Kalrez, Aflas, etc.
   
Other sizes, materials or design versions on request.


 

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