OptiAir Hood
High humidity hood for stable drying conditions
Valmet’s OptiAir Hood is much more than an enclosure over the dryer section. It combines systems for ventilation, runnability and heat recovery, thus providing excellent tools for controlling drying performance and maintaining energy efficiency.
Controlled environment and improved runnability
Efficient ventilation and energy recovery
Improved working environment
Controlling drying performance and maintaining energy efficiency
OptiAir Hood is part of OptiAir process ventilation family and important part of creating energy efficient and stable drying conditions. OptiAir process ventilation offers complete control of energy and air flows in paper and board machines.
OptiAir Hood is designed for consistent long-term operation at high humidity and provides a controlled and stable environment for the drying process. It improves the runnability of the machine and enables efficient control of process ventilation and energy recovery from the exhausted air and water. It also improves working environment in the machine room by efficient sound attenuation and heat insulation.
Valmet Fold-up Wall – Smart and safe solution for closed hood
Valmet Fold-up Wall improves safety and enables shorter maintenance shut-downs while standing the same conditions as a traditional closed hood. Unlike in a traditional hood, the wall can be opened to a wanted height during web breaks and fully during shutdowns, thus giving excellent access to the dryer section. The outlook of the wall can be selected to suit your specific needs. Watch the video to see how it works in practice!
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Contact our expertsRead our success stories about OptiAir Hood
How to plan a successful rebuild?
Rebuilding a paper or board machine can improve the competitiveness of your business and your processes. But where do you start? Download our e-book to learn how to develop a winning rebuild concept, how to minimize rebuild related risks, and how to ensure smooth ramp up to full production.
Download e-bookExplore our latest board and paper press releases
- Jan 11, 2024Valmet to supply key technology for Shandong Jin Tian He Paper’s board machine in China
- Oct 25, 2023Valmet has received a major order of multiple technologies from Liansheng Pulp & Paper in China
- Oct 4, 2023Valmet introduces a new rotating consistency measurement for pulp and paper producers
- Sep 26, 2023Valmet to supply a fine paper making line to Yueyang Forest Paper in China
- Aug 31, 2023Valmet to supply key pulp and paper technologies to Naini Papers in India
- Jul 19, 2023Valmet to supply a high-capacity winder to Gascogne Papier in France
- Jul 4, 2023Valmet to supply an OptiFlo headbox and Valmet Conical Refiners to Shree Ajit Pulp and Paper Limited in India
- May 8, 2023Valmet to rebuild ITC’s board machine in India
- Apr 25, 2023Valmet to deliver key technologies for Henan Longyuan Paper’s testliner line in China
- Mar 27, 2023Valmet to supply a new container board making line to DS Smith in Italy
