Customer case:

Norske Skog Skogn replaced old consistency sensors with Valmet SP

Feb 1, 2021

Norske Skog's Skogn mill in Norway manufactures newsprint paper with the total production at the mill's 3 paper machines being 520 000 t/a. PM2, where the mill installed new 4th generation Valmet Blade Consistency Measurement, produces 150 000 t/a using a DIP content of 20%.

Stable and accurate blade consistency measurement
We replaced 2 rotaries with Valmet SP since there were some problems to access repair kits. The Valmet SP on TMP has shown a very stable and accurate measurement, we have had no problems with the new blades, since installation in February 2019.
Instrumentation manager


Location Skogn, Norway

TMP to blend chest

  • TMP pulp, measuring and controlling pulp to the mixing chest before PM2
  • Operating range 2 – 4% Cs
  • Flow velocity 0.8 – 1.2 m/s
  • Vertical installation in 350mm pipe

RCFS to mixing chest

  • 100% DIP pulp, measuring and controlling the pulp before it enters the mixing chest, before PM2
  • Operating range 2 – 4% Cs
  • Flow velocity 0.6 – 2.2 m/s
  • Vertical installation in a 200mm pipe

4th generation Valmet Blade Consistency Measurement with RL sensing element

Results Stable and accurate measurement with high correlation
Keywords Consistency, Automation, Europe


Laboratory correlation of Valmet Blade Consistency Measurement on TMP