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Level detection and pressure measurement in the digester

Process data

Measuring task:
Point level detection and pressure measurement
Measuring point:
Measuring range up to:
8 m
Wood chips in cooking liquor
Process temperature:
+160 … +170 °C
Process pressure:
+6 … +8 bar
Special challenges:
Insulated vessel


In the digester, the action of chemical dissolution removes the lignin binder, thereby exposing and freeing the cellulose fibres. During the cooking process according to the alkaline sulphate method, the fibres are fed into the digester by means of steam pressure. To enable fully automatic operation of the digester, a point level detection of the filling is required. The vessel pressure also needs to be carefully monitored throughout this process.

Your benefit

Reliable operation despite extreme process conditions
Cost effective
Measuring system can be installed without invasive work on the vessel wall and insulation
User friendly
Simple retro installation

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Industry brochure

Level and pressure instrumentation for the paper industry