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Solenoid valves have a very wide range of applications and can be used for various gaseous and liquid media – drinking water, steam, aggressive chemicals, coolants, neutral and explosive gases, oils, and many others. Find out what solenoid valves for air are used for and how to choose them.
A solenoid valve contains a coil, or solenoid, which creates a magnetic field when energized. This field then moves the valve piston. The valve can be normally open (NO) and closed when energized, or conversely, normally closed (NC) and open when energized.
With minimal energy consumption, solenoid valves serve to control the flow of various gaseous and liquid media in pipelines. More complex three-way versions can also be used for mixing and distributing flows or switching between individual flows in multi-circuit pipelines.
Each solenoid valve is designed for a different medium. Each medium requires a different design and manufacturing materials for the valve and seals. Therefore, valves cannot be simply interchanged; they can only be used for media specified by the manufacturer.
Solenoid valves for air are used to control the flow of air or other inert (neutral) gases in pipelines, and they are often suitable for clean water as well. For steam, aggressive, and explosive gases, special solenoid valves with designs intended for these media are used.
Solenoid valves designed for air do not have seals resistant to aggressive substances and high temperatures, and they could easily be damaged. The design of air valves is not suitable for explosive environments, and therefore they should never be used in explosive environments or with explosive and flammable gases.
Solenoid valves for air find applications in various hydraulic and pneumatic systems in industry, healthcare, and households, where you can find them in various electrical appliances.
It is advisable to install a mechanical impurity filter before solenoid valves for air. These solid particles could settle on the body and seals of the valve and cause insufficient closing, seal disruption, media leakage, valve seizure, and other malfunctions.
First, make sure that the valve can be used for air. Note that different solenoid valves are intended for compressed air. The manufacturing material must match the medium, not only for the valve itself but also for the seals and overall construction. Additionally, it is necessary to ensure that the maximum allowable pressure and temperature of the medium for the valve meet your needs.
Then choose the default position, i.e., whether the valve should be normally open (NO) or normally closed (NC). Since the active position is achieved when energized, it is important for energy efficiency to choose the default position in which the valve will be most of the time. Excessive coil load is not only energy-intensive, but it also shortens its lifespan.
Finally, similar to water valves, it is necessary to choose the appropriate solenoid power supply(coils can be changed as needed, thus changing the voltage) and type and size of connection to the pipeline. Solenoid valves are available in 12 V, 24 V, 110 V, 220 V, 230 V, 250 V, and 400 V. In humid environments, it is necessary to choose a model with the appropriate IP rating.
Look for the highest quality products under the brands Tork, Danfoss or Peveko, which guarantee trouble-free operation and long lifespan. Solenoid valves from these manufacturers can also be found in our offer.
Solenoid valve for air, neutral gases, and water TORK.
This solenoid valve from the renowned manufacturer Tork features an auxiliary lift. In addition to air, it can be used for water (including drinking water, the valve meets the NSF/ANSI61 certification) and neutral gases. The valve body is made of brass and the internal parts of stainless steel, making the valve withstand even demanding conditions.
This model of valve is normally closed (NC) and is suitable for media with a maximum temperature of 80 °C and a maximum pressure of 16 bar. The valve is designed for 230 VAC power supply, but solenoids can be changed as needed for other voltages.
On the market, you will also find air-operated solenoid valves. An example is the Tork S9510 DN15 valve. In pneumatically operated valves, air flows, filling the valve and thus closing it, so no gas or liquid can flow through it. Conversely, if air does not pass through the valve, the medium can flow freely, and the valve is open.
This model is designed for air, water, and neutral gases with a maximum temperature of 80 °C and a maximum pressure of 10 bar. It connects to the pipeline with an internal thread size of DN 15.
In addition, our offer includes solenoid valves designed for various media, certified for drinking water or explosive environments, with coils for all available power supplies and for any type of pipeline connection. We are happy to assist you with your selection.
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