Polymer Processing Systems

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BKG® HyFlex™ Start-Up / Shut-Off Valves

The BKG shut-off valve interrupts the melt flow in the system. It is suitable for multiple layer film lines and reactor processes.

It enables a controlled start-up / shut-off of the melt flow (maintenance, interruptions, etc.).


  • Controlled shut-off of the melt flow during maintenance, product interruptions or other events that require the flow to be shut-off or redirected


  • 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