• SEAI Triple E



Wilo Carus - Automatic air vent



  • The cap of the Wilo-Carus Super is conical in shape. The advantage of this construction is that the clearance between the water level and venting valve is maximized. ƒ The air escape duct can be opened or closed with an adjusting screw. ƒ The venting valve forms an integral part of the cap, so that it is impossible to damage the float vent mechanism from outside. ƒ Suitable for addition of glycol-based anti-freeze up to 50 %. ƒ Minimum/maximum working temperature: -10 °C / 120 °C. ƒ Minimum/maximum working pressure: 0.2 / 10.0 bar.
  • The Cairus Airvent unit is designed for air or gas venting in domestic and commercial closed heating and chilled water circuits. The air-venting unit discharges air bubbles continuously and has to be installed at the highest position in the system.Thanks to the high efficient type of float venting units the system efficiency, service life of pumps, control devices and valves will be considerably extended.

Your advantages:

  • Higher efficiency of the heating and chilled water system thanks to the intelligent “open closed” principle of the float valve
  • High reliability and less maintenance by removing free air out of the system
  • Reduced noise level thanks to efficient air venting

Continuous air venting:

  • Wilo-Carus Air vent is the ideal solution to provide continuous air venting of closed heating and chilled water circuits in domestic and small commercial buildings. The design with protective cap and the expansion sealer rings on the one hand prevents leakages and on the other hand the long distance between the water and the closing mechanism reduces the possibility of contamination.


  • Automatic air vent.


  • For air or gas venting in domestic and commercial closed heating and chilled water circuits.

Type key:


Carus Airvent R 3/8M

Carus Airvent

Family name automatic air vent

R 3/8M



  • Air venting housing: Brass
  • Cap at the top: Plastic


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