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Hot water modules for calender rolls, recommended maintenance

Calender rolls are heated via heating modules to provide low-variance accurate roll temperatures. Follow these hot water module maintenance best practices.

Stainless steel care, cleaning, surface prep and passivating

Stainless steel is corrosion resistant and maintains a film of chrome oxide over its surface. Under normal conditions this film is self-healing.

How to troubleshoot calender roll heat transfer problems

The following were noted during installations and are common installation troubles. Read them carefully to rectify or avoid them during your installation.

SAFETY BULLETIN: Precautions to take before refiner maintenance

Valmet has learned of a catastrophic failure of a Valmet Disk Refiner. Excess pressure was used trying to unplug an inlet pipe. No injuries, but much damage.

Troubleshooting doctors: loading, wear and roll surface marking

Some doctor problems are rather straight forward, readily recognized, and corrected. However, occasionally one will crop up that seemingly has no solution.

Pulp drying articles

Explore our innovative solutions and advancements in pulp drying through a collection of insightful customer stories and articles.

Successful press section rebuild at Fibre Excellence SAS Provence in France

A press section rebuild has successfully started up on April 2nd 2024 at Fibre Excellence SAS Provence mill in Tarascon, France. The rebuild was a part of a modernization plan, which included 180 million euros of investments over four years, to upgrade the plant to the highest industrial and environmental standards.

One new milestone with textile pulp

LD Celulose’s pulp drying machine ran for over 270 days without any web breaks. This achievement marks a new milestone in 2023 for textile pulp. Since its start-up, the machine has demonstrated a very stable runnability. 

Valmet Airborne Dryer - A wide scope of pulp dryers help you get the exact capacity and performance you need

A modern airborne dryer is a cost-effective solution to get the precise output and quality you require. Valmet is specialized in both large and small Airborne dryers that are tailor-made to meet your specific drying needs.

Valmet Airborne Dryer - Reducing costs for both installation and operations

The Valmet Airborne Dryer has been developed to keep customer’s investment and operating costs to a minimum. A key driving principle in the work has been that our customers must achieve the highest possible cost efficiency.