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Dryer service case study – setting up a baby dryer doctor

This article reviews a service call made at a USA linerboard mill to diagnose and adjust their dryer doctor, including actions taken and recommendations.

Saturated steam enthalpy table, steam mechanism, optimizing tips

At the end of this article is a typical enthalpy table for saturated steam. You can use this type of chart to determine what the temperature is inside a dryer can at a given pressure. We also provide some tips for sizing lines, measuring temperature and monitoring condensate pressure.

Winding principles part 1 - TNT overview, effect of web tension

This article is the first in a short series which will explain how web tension, rider roll pressure, and drum torque ratio affect roll quality. Illustrations of key components and control principles will be presented. The series starts with an overview and discussion of web tension.

Three things about refining

Read three highlights of Valmet´s refining technology and learn how we can help you to improve performance and increase efficiency across all refining applications.

Example equipment update analysis - rebuild/replace/add a winder?

When examining an older piece of equipment that does not meet today’s performance requirements, a mill must determine if it should be rebuilt or replaced.

Wet end tools for paper/board quality and strength (webinar)

An upcoming webinar describes how each component at the wet end of a paper machine can be operated to optimize the quality and the strength of specific grades.

Sizer rods: Does size matter, is big and slow the way to go?

Film size presses use rotating rods to control the starch or coating film applied on the applicator roll. Rod diameter varies depending on the application.

Frequently asked questions about the demerger

Q1/2024 results: Stable business performed in line with market expectations

Key messages from the Capital Markets Day