High and medium consistency refiner segments
By optimizing the refining process and refiner segments, mills operational costs and product quality can be greatly affected.
Let us be your co-driver for success
In the field of refining, Valmet is continuously developing new refiner segment technology to improve customers’ competitiveness. As a result of this we can now present a new unidirectional segment concept called ServoNavitas.
Valmet can optimize your refiners
Valmet has a long tradition of serving customers on all continents. We have gained detailed knowledge for most types of refiners, both self installed as well as those made by our competitors. We are now willing to start collaborating with our customers and committing ourselves to optimizing refiner processes with new technology.
Custom-made segments
Valmet offers customers an extensive contact network, experienced refiner specialists, effective refiner segment design toolbox with patented features and the most effective research and development support. Our philosophy is that every refiner is unique and needs custom designed refiner segments
Where do you want to go?
| Intensive defibration |  |
New innovation to further improve Valmet existing energy saving Refiner Segment product portfolio for reaching 50% energy reduction. |
| Turbine segments |  |
Energy-saving designs involve spreading the wood flow evenly over the segment rings without loosing speed. |
| Venturi |  |
Restrictions create a great degree of turbulence, which forces fibers up into the disc gap. The design of the feeding bar reduces the refiner’s energy requirement. |
| Low energy |  |
In the Low energy segments the bars form a pumping angle at a very critical area in the disc gap. |
| Quattro feed |  |
Utilizes CD stator inlet in a new way for further improved feeding and more unified fiber distribution. |
| Shive clean |  |
This new technology takes benefit from the fact that in the disc gap steam and fibers are behaving differently. |
| Hold back |  |
Flow optimized feeding pattern. |
| Mild defibration |  |
Innovation for longer and stronger fibers. |
| Edge lock |  |
The unique two-step bar leading edge design of the Edge lock segments makes possible more effective refining of fibers. |
| Low shive |  |
With Low shives segments pulp quality can been improved, shive content reduced and refiners’ operation kept stable. |
| Soft bar |  |
Ensuring smooth and gentle feed, leveling out incoming feed variations. |
| Super feed |  |
Super feed and Turbine segments center plate improves feeding at the eye of the refiner. |
| Steam lock |  |
Forms a fiber pad to prevent flow back steam entering to refiner feed. |
| High fibrillation |  |
High fibrillation segments give better control of the disc gap and improve the loadability of the refiners. |
| Selective segments |  |
Selective segments feed steam forward in the refiner disc gap. |
| Attack bar |  |
Inclined bars for sharper leading edges and cleaner grooves as well as energy saving over segment lifetime. |
| Curved dams |  |
Curved dams increases the amount of material in the corners of bars and dams, which is where most of the segment wear occurs. It slows down the rate of wear in these areas so much that it prevents shives from not receiving adequate treatment. |
| Wear cap |  |
Cap in stator segments shield against hits caused by impurities in fiber flow. |