Mechanical seals

Mechanical seal Type 326

The mechanical seal type 326 is designed for particularly large pumps, agitators, mixers and the like. Thanks to the design with "floating" seal faces, the mechanical seal is capable of absorbing extreme movements in the seal and maintaining the faces in an identical pressure ratio to each other.

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Advantages
  • Free movement space of +/- 2.0 mm* axial
  • Cartridge-mounted
  • Double balanced and tandem-active
  • Independent of the direction of rotation
  • Venting option
  • Multiple springs made of Hastelloy C
  • Springs outside the medium - no blockage of the springs
  • Self-closing in case of pressure reversal
  • Axial or radial ¼" NPT barrier fluid connections
Technical details
Range of application*  
Pressure 700 mm Hg - 28 bar
Temp. Elastomer dependent
Sliding velocity up to 25 m/s
Shaft movements axial +/- 2,0 mm
  radial ≤ Ø 70 +/- 0,5 mm | ≥ Ø 75 +/- 0,8 mm
   
Sizes  
Dshaft 24 - 160 mm
  1“ - 6 ¼“
  Special sizes available on request
Materials  
Metals DIN 1.4571
Springs Hast. C
Faces CA, SC, SSIC, TC
O-Rings FKM, EPDM, PTFE, FEP Umm., Chemraz, Kalrez, Aflas, etc.

Other sizes, materials or design variations upon request.
* Maximum temperature / pressure / speed indicates operating extremes independently and does not imply the seal will function at these extremes at the same time. Contact DEPAC if in doubt.