Bow Screens

Versatile solutions for effective fiber recovery, pulp thickening

A bow screen is a curved, inclined screen that separates fiber and debris from filtrate. Valmet’s industry-leading portfolio, including the Pressure-fed Bow Screen and Gravity Bow Screen, provides effective fiber retention (ranging from approximately 2% to 5% discharge).

Each model is simple to operate, easy to maintain and delivers fiber recovery, pulp thickening and other benefits across a range of applications.

 

Pressure-fed Bow Screen Applications
  • Fiber recovery
  • Pulp thickening
  • Felt hair removal
  • Deinking stock washing
  • Fiber fractionation
  • Fiber/filler separation
  • Shower water protection/filtration
Gravity Bow Screen Applications
  • Fiber separation
  • Reject dewatering
  • Chip washing water
  • Debarking water
  • Wood room effluent

 

 

BOW SCREEN PORTFOLIO

Valmet Pressure-fed Bow Screen

Valmet Pressure-fed Bow Screen

A functional, flexible solution featuring a reconfigured nozzle arrangement for higher capacity and greater runnability than any of its predecessors. Valmet Pressure-fed Bow Screen is capable of separating fiber as small as 100 microns in length from a water suspension.

Valmet Gravity Bow Screen

Valmet Gravity Bow Screen

A simple, effective solution for recovering fibers and other particles as small as 350 microns in length from a water suspension. This compact machine utilizes no moving parts and requires minimal maintenance.