Extranet Lidering
Success Story > Repair double cartridge LDC80 shaft 60 reactor

Repair double cartridge LDC80 shaft 60 reactor

Sector: Chemical
Initial state
Operations performed
  • Cartridge dismantling and cleaning.
  • Replacement of bearings and oil seal.
  • Manufacture of graphite and stainless steel contact surfaces, adding estelite.
  • Lapping of the original contact surface with alumina oxide.
  • Repairing of the sleeve.
  • Assembly of O-rings in FFKM on product side and FKM on atmospheric side. Testing of the static sealing with air at 3 bar/ 30 min.
  • Product: Concentration >40% of different chemicals (pH 1-13)
  • Work pressure: 1.5 bar. Barrier fluid (glycol): 3.5 – 4.5 bar
  • Temperature: 20-120 °C
  • Speed: 80 rpm

The cartridge shows signs of wear on graphite and steel contact surfaces, thus it is recommended to manufacture them again.
The sleeve displays friction marks.