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Headbox apron shower troubleshooting variables, and a case study

The key word in papermaking is uniformity, and the apron shower plays a primary role in maintaining this characteristic. Shower water volume, pressure and temperature are critical factors. The case study involves the three indicators of a thermal bow problem in the apron lip.

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.

Steam & condensate 1 - overview, glossary and water evaporation

In this first in a two part series, We explain the terminology and working principles of a typical S&C system and how it controls steam pressure for optimum drying over the entire operating range.

Hydraulic controls improve performance, reliability - case study

In this case study, Valmet helped a northern USA mill upgrade its hydraulic controls to remove obsolescence, while also improving runnability and reliability.

Improving reel turnups for low downtime and high paper yield

The reel turnup process must be perfect in order to maintain high quality end product and avoid downtime. Successful turnups share key aspects, while others may benefit from a technology upgrade.

SymSizer/OptiSizer beam setup, after applicator roll change

SymSizer or OptiSizer beam setup is required after every applicator roll change or whenever you feel there is an issue with starch/coating application. The goal is to set the applicator beam parallel with the new applicator roll.

Reliable operations secured at Michigan Sugar with Flowrox™ valves and pumps

It is obvious that for the process to work efficiently and without problems, it is necessary to choose the right equipment in the right places for the process. This once again proved to be true, when Michigan Sugar was facing problems with valves in a well-oiled, meticulous system that was getting jammed up by a simple cast-iron butterfly valve. Another problem they faced was with pumping calcium. The plates of the pump were wearing out too fast and the costs were thus unbearable. 

Taking the guesswork out of properly sizing an assembly

The cause of the valve-related problems encountered in industrial applications often lies in an inadequate selection of valves in terms ...

Quality brings competitive advantage

Quality is a holistic part of an organization’s total competitive advantage, and the role of the customer has thus become increasingly central in quality work. Quality is also connected with a company’s business strategy, management and leadership – and is seen as everyone’s responsibility.

Flow control partner spotlight: Troya Proses

Channel partners provide a valuable network to support our flow control customers all over the world. We interviewed valuable partner Troya Proses from Turkey.