Split mechanical seal Type D85

The mechanical seal type D85 is the world's only cartridge mounted split seal. The pre-assembled seal, which consists of two half-shells, enables uncomplicated mounting without shims, special tools, measurement or gluing. The mechanical seal is characterised by its universal usage possibilities.

  • No unit dismantling required
  • Cartridge-mounted
  • Balanced
  • Independent of the direction of rotation
  • Multiple springs made of Hastelloy C
  • Gland with axial flushing
  • Springs outside the medium - no blockage of the springs
  • Vibration-dampend stationary face support
  • Replaces packings
Technical details
Range of application*  
Pressure up to 12 bar
Temp. Elastomer dependent
Sliding velocity up to 15 m/s
Shaft movements axial ≤ Ø 140 +/- 1,0 mm | ≥ Ø 145 +/- 2,0 mm
  radial ≤ Ø 140 +/- 0,5 mm | ≥ Ø 145 +/- 1,0 mm
Dshaft 50 - 200 mm
  2“ - 7 ¾“
  Special sizes available on request
Metals DIN 1.4571 (316 xx)
Springs Hast. C
Faces CA, SC

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.