Guardian Air/Vacuum Relief Vent

The Guardian Air Vents from Netafim provide maximum protection with proper placement in your irrigation system. The large-capacity vents offer outstanding performance in venting air at start-up and preventing vacuum issues at shutdown. Guardian Air Vents are used downstream of valves, at the manifolds to break vacuum at system shutdown, and on any sloping terrain to prevent vacuum issues when pipes drain. They are also used upstream of valves to release air at system start-up.

How to Use:

1. Air is expelled from the system as water fills the lines until the float rises to seal the vent.
2. The vent remains closed while the system is operating under pressure.
3. At system shutdown, when lines start to empty, or system pressure drops, the float drops, and the air is allowed to enter the lines, breaking any vacuum that may cause line collapse or suctioning in of dirt and debris.

Features:

• Made of corrosion resistant, UV protected composite material
• Available Sizes include:
  • 3/4" MPT (male pipe thread) connection
  • 1" MPT (male pipe thread) connection
  • 2" FPT (female pipe thread) connection