Atmosphéric Vacuum Breaker type « AVB »




  • on penstock head valve

Key Features

  • Automatic system to authorize entrance of air inside the penstock during a draining of it
  • Design pressure: PN2,5 to PN50
  • Standard connection flanges or existing adapted ones

Design adapted to customer service conditions

  • Complete range of pressure, diameter
  • Automatic spring actuation


  • Hydraulic damper
  • Manual opening command (for use in penstock vent valve)
  • Splashes reserve pipe