How to fix doctor blade streaking on a Valmet TurboDry Yankee Dryer
Doctor blade streaking causes MD caliper streaks in tissue. Inspect blade loading pressure uniformity, blade holder alignment, and blade condition before replacing the blade.
~60 min7 steps
How to improve Yankee hood temperature uniformity on a Valmet TurboDry
Non-uniform hood temperature creates MD moisture streaks. Check burner flame pattern, air distribution nozzles, and hood sealing before adjusting zone setpoints.
~90 min7 steps
How to diagnose condensate drainage failure on a Valmet TurboDry Yankee Dryer
Poor condensate drainage reduces drying efficiency and can cause differential thermal expansion damage. Check the stationary siphon clearance, steam pressure differential, and condensate flow rate.
~60 min7 steps