The precision of V-port segment valves is recommended when flows need good controllability. To control the basis weight, nelesACE™ valves can be used. These are specially designed for even better flow control. Metso's triple eccentric disc valves are a good and cost-efficient way to handle flows with large pipe sizes and low pulp consistencies of below 2.5% in control and 4% in on-off applications. Segment and ball valves can be used for higher consistency flows. Erosion problems can be prevented by using ceramic materials in the valves.
Low cost of ownership
- Good controllability results in lower losses and higher product quality
- Total valve costs can be significantly reduced and fouling prevented with the right valve selection
- Erosion lowers the valve lifespan; preventing erosion reduces maintenance demand
- A plant's environmental impact can be reduced and safety improved with a tight shaft sealing
Basis weight control
Learn more about the short circulation, which is a part of the papermaking process in which water filtering through the wires is utilized for diluting the stock supplied to the headbox