Density measurement of liquor in the recausticisation process

Black liquor and green liquor densities are measured reliably by radiometric systems, which are clamped on to the pipe and provide highly repeatable readings. The measurement is carried out without contact and is therefore unaffected by the high temperature and the chemical properties of the liquor. Installation on existing lines is easily feasible without process downtime.

Customer benefits

  • Online information on liquor properties 
  • Optimised liquor regeneration process
  • Reduces the amount of wash water needed in pulp washing systems
  • Virtually no operating and maintenance costs
  • Unaffected by build-ups and crusting
  • Saves energy consumption
  • Experts in proven retrofits


  • Non-contacting radiometric density measurement
  • No flow disturbance, no wear and tear 
  • Easy to install or retrofit clamp-on system 
  • Highly repeatable measurement 
  • No recalibration necessary
  • Not affected by the hostile chemical properties or temperature of the liquor


Brochure Density Measurement Product brochure

Englisch | PDF | 1.5 MB

Brochure Industry Pulp & Paper Industry brochure

Englisch | PDF | 2.1 MB