Ductile Iron, Steel and Nylon Air Valves

Image of steel air valve
Steel Air Valve
Image of Ductile Iron Air Valve
Ductile Iron Air Valve
Image of Nylon Air Valve
Nylon Air Valve

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.

Image of steel air valve
Steel Air Valve
Image of Ductile Iron Air Valve
Ductile Iron Air Valve
Image of Nylon Air Valve
Nylon Air Valve
Air and Vacuum Valves Body Material
Model AV010
Available Sizes: 2", 3"
Product Sheet
Nylon
Models K010 and K014
Available Sizes: 2", 3", 4", 6"
Product Sheet
Ductile Iron
Model K020
Available Sizes: 3", 4"
Product Sheet
Ductile Iron
Models K060 and K064
Available Sizes: 2", 3", 4", 6", 8", 10"
Product Sheet
Ductile Iron
Models K060NS and K064NS
Available Sizes: 2", 3", 4", 6", 8", 10"
Product Sheet
Ductile Iron
Combination Air Valves Body Material
Models D010, D012 and D015
Available Sizes: 2", 3", 4", 6", 8", 10"
Product Sheet
Ductile Iron
Model D020
Available Sizes: 2", 3", 4"
Product Sheet
Steel
Model D023
Available Sizes: 3", 4"
Product Sheet
Steel
Model D025
Available Sizes: 2", 3", 4"
Product Sheet
Nylon
Model D026
Available Size: 6"
Product Sheet
Ductile Iron
Models D050-C and D052
Available Sizes: 2", 3", 4", 6"
Product Sheet
Ductile Iron
Models D060-C and D062
Available Sizes: 2", 3", 4", 6", 8", 10"
Product Sheet
Ductile Iron
Models D060NS and D062NS
Available Sizes: 2", 3", 4", 6", 8", 10"
Product Sheet
Ductile Iron
Model D065
Available Sizes: 2", 3", 4", 6", 8"
Product Sheet
Ductile Iron
Model D065NS
Available Sizes: 2", 3", 4", 6", 8"
Product Sheet
Ductile Iron
Automatic Air Valves Body Material
Models S014, S015 and S016
Available Size: 1"
Product Sheet
Steel
Models S020, S022, S020HC, S022HC, S020HCVB and S022HCVB
Available Sizes: 2", 3", 4"
Product Sheet
Steel
Models S050-C and S052
Available Size: 1"
Product Sheet
Ductile Iron