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HP PSU FDA polysulfon makes apple juice save


Te see the level of apple juice, one of our customers decided for sight glasses of PSU to replace glass. The risk that glass fractions penetrate into the apple juice come herewith to an end.


  • high temperature resistant
  • resistant to changing agents
  • transparent
  • physically inert
  • FDA conform 21CFR 1665


Sightglasses instead of glass. ERIKS produces and polishes these sightglasses following drawings.

Properties PSU

  • excellent hydrolysis resistance
  • remains though at high temperatures up to 180 °C
  • transparent
  • physically inert
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