9856

Combined air release valve HaVent

BAIO connection
Single image of the Hawle product Combined air release valve HaVent 9856

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Diameter range DN 80

Pressure rating PN 16 I PN 25


  • The combined air release valve is embedded instead of high-maintenance and expensive pipe ventilation shafts.
  • The standpipe protects the automatic air release valve
  • With the automatic shut-off, the combined air release valve can be easily removed and installed for service tasks
  • The materials used for the combined air release valve guarantee absolute resistance to corrosion
  • The drainage water is removed through the drainage (ISO pipe fitting DN ½")
  • A surface box with an opening measuring 300 mm or larger should be used for underfloor installation;
  • The standpipe should be surrounded by a drainage water absorber up to the cap to drain any ingressing rainwater.
  • The combined air release valve can be shortened by 100 mm at the intended points marked in red



  • BAIO connection DN 80 from 0,1 - 16 / 0,2 - 25 bar
  • Automatic and maintenance friendly
  • Max. Air release: 700 m³/h PN 16
  • Max. Air release: 770 m³/h PN 25
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