Ductile Iron, Steel and Nylon Air Valves
The three main types of Air Valves installed in water supply systems are:
Air and Vacuum Air Valves
These type of air valves discharge large quantities of air from non-pressurized pipelines and are used mainly during pipe filling. Air discharge is critical for efficiently filling pipelines with liquid. Air and Vacuum Valves also enable the intake of large quantities of air when lines are drained, when the pressure drops suddenly and at water column separation. Air intake is essential when draining lines during maintenance and for preventing pipe collapse when vacuum conditions exist. These valves operate when the line is NOT pressurized and remain closed when the line is under pressure. When pressure drops below atmospheric pressure, the valves open.
Automatic Air Valves
These type of air valves continuously release accumulated air entrapped in a pressurized line. This entrapped air is found mostly at the peaks of the pipeline. As air accumulates in the air release valve, water is displaced, the float lowers with the drop in the water level and air is released from the exposed orifice. As water refills the air release valve, the float rises and reseals the valve.
Combination Air Valves
These type of air valves fulfill the tasks required of both types – Air and Vacuum and Automatic Air Release Valves. They discharge large volumes of air when the system is being filled, admit large volumes of air during system drainage and continuously release entrapped air when the line is under pressure.
Netafim offers Air Valves in several body materials. This section highlights air valves available in either Ductile Iron, Steel or Nylon material. Product information for each model can be found under the ‘PRODUCTS’ tab.
Air and Vacuum Valves |
Body Material |
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Model AV010 Available Sizes: 2″, 3″ Product Sheet |
Nylon |
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Models K010 and K014 Available Sizes: 2″, 3″, 4″, 6″ Product Sheet |
Ductile Iron |
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Model K020 Available Sizes: 3″, 4″ Product Sheet |
Ductile Iron |
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Models K060 and K064 Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″ Product Sheet |
Ductile Iron |
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Models K060NS and K064NS Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″ Product Sheet |
Ductile Iron |
Combination Air Valves |
Body Material |
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Models D010, D012 and D015 Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″ Product Sheet |
Ductile Iron |
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Model D020 Available Sizes: 2″, 3″, 4″ Product Sheet |
Steel |
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Model D023 Available Sizes: 3″, 4″ Product Sheet |
Steel |
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Model D025 Available Sizes: 2″, 3″, 4″ Product Sheet |
Nylon |
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Model D026 Available Size: 6″ Product Sheet |
Ductile Iron |
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Models D050-C and D052 Available Sizes: 2″, 3″, 4″, 6″ Product Sheet |
Ductile Iron |
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Models D060-C and D062 Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″ Product Sheet |
Ductile Iron |
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Models D060NS and D062NS Available Sizes: 2″, 3″, 4″, 6″, 8″, 10″ Product Sheet |
Ductile Iron |
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Model D065 Available Sizes: 2″, 3″, 4″, 6″, 8″ Product Sheet |
Ductile Iron |
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Model D065NS Available Sizes: 2″, 3″, 4″, 6″, 8″ Product Sheet |
Ductile Iron |
Automatic Air Valves |
Body Material |
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Models S014, S015 and S016 Available Size: 1″ Product Sheet |
Steel |
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Models S020, S022, S020HC, S022HC, S020HCVB and S022HCVB Available Sizes: 2″, 3″, 4″ Product Sheet |
Steel |
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Models S050-C and S052 Available Size: 1″ Product Sheet |
Ductile Iron |