Air Vents offer more air release capacity than other vents of similar size. Our proven design provides reliable operation reducing water hammer incidents. Made of corrosion-resistant reinforced UV protected nylon - no metal parts to rust or corrode. Whether its releasing large volumes of air at the pump station, releasing entrapped air in the line or breaking vacuum downstream of valves, Netafim offers a variety of styles and sizes to fit almost every application. |
- Ensures maximum protection of the irrigation system with proper sizing and placement.
- Hydrodynamic float design ensures vent closure as water fills the system, remains open when air pressure reaches 10 psi (other vents close quickly when air pressure reaches 3 psi).
- Large capacity vents dampen water hammer preventing pipes and fittings from cracking or bursting.
- Unique patented rolling seal feature allows gradual opening, closing and self-cleaning - available on 1” and 2” Combination and 1" Automatic..
- Made of corrosion-resistant fiberglass with reinforced UV protected nylon - no metal parts to rust or corrode, no need for spare parts.
- Guardian Air Vent with Shrader Valve is ideal for measuring local line pressure.
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- 1” and 2” Combination Air/Vacuum Relief and Continuous Acting Air Vents
- For release of large volumes of air: pump and filtration stations, along mains, at the end of mainlines.
- At high points in pipe network or upstream of manifolds.
- Every 1,000 feet along mainlines 6 inches and larger.
- 2” Combination Air Release/Vacuum Guard and Continuous Acting Air Vent
- Releases air at pump priming and maintains the prime by not allowing air intake in long and/or undulating suction lines to pump stations.
- Releases entrapped air while ensuring continuous prime at centrifugal pumps.
- Builds up siphons with air release, maintains the siphon by continuously releasing air and not allowing air intake.
- 3/4” and 1” Automatic Continuous Acting Air Vents
- For high spots where air accumulates.
- 1” Continuous Acting/Vacuum Guard Air Vent
- For release of entrapped air while ensuring continuous pump prime with no air intake in centrifugal pumps and pump suction lines.
- Protects mechanical seals in vertical pumps by not allowing air to accumulate in the stuffing boxes.
- Maintains siphons with continuous air release while not allowing air intake.
- 3/4”, 1”, 2” and 3” Guardian Air and Vacuum Relief Air Vents
- Commonly used downstream of valves, primarily at manifolds, to release large amounts of air when the system is charging and to break vacuum caused by system draining.
- On sloping terrain to prevent collapsing of pipes caused by vacuum when pipe networks drain.
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- Maximum operating pressure:
- 2” Nylon Combination: 230 psi
- 2” Polypropylene Combination: 150 psi
- 1” Combination: 150 psi
- 3/4” and 1” Automatic: 230 psi
- 3/4” Guardian: 150 psi
- 1” Guardian: 150 psi
- 2” and 3” Guardian: 150 psi
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About Netafim USA 
