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BKG® HyFlex™ Start-up Valves for Underwater Pelletizing Systems

There are a number of reasons to use a diverter valve when operating an underwater pelletizing system. BKG diverter valves are adapted to the application in BKG underwater pelletizing systems; however, they can also be used with most of the underwater pelletizing systems available in the market.


  • Automated and simple start-up
  • Full melt flow directly at start-up
  • Easy flushing of the die plate before startup
  • Safe discharge of contaminated material
  • Fast separation of the process in case of a failure
  • Short residence time of the melt
  • Quick removal and exchange of die plates



  • Designed to match the cone design of a BKG® die plate in order to optimize the flow and minimize melt residence time
  • Optimized flow channels utilizing rheological data
  • Wear-free metallic sealing system; no additional sealing required
  • Easily integrated into the line controls
  • Highly customized solutions available
  • Proven piston type design