Polymer Processing Systems

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BKG® HyFlex™ 3/3-Way Valves

Depending upon the position of the valve the polymer can be directed through different inlets and outlets to guide the melt into the appropriate flow channels. The BKG 3/3-Way valve is suitable for switching between two production processes (e.g., switching of two large area filters). The melt may optionally be guided into one or both outlet channels. Switching between the two outlet channels is done without pressure variation and without trapped air.


  • Elimination of dead spaces prohibits the polymer from degrading and causing product defections 
  • No pressure variations in the process enhances the overall product quality and product consistency
  • No air can enter the process


  • Optimized flow channels utilizing rheological data
  • Wear-free metallic sealing system - no additional seal required
  • Easily integrated into the line controls
  • Highly customized solutions available
  • Proven piston type design