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Air dryers are essential equipment in many industries removing moisture from compressed air systems. Two common types of air dryers are desiccant air dryers and refrigerated air dryers. At CAPS, our heatless desiccant compressed air dryers help to lower the ‘dew point’ to dry out the air. The outcome is an extremely dry air flow with a -40 degrees Celsius dew point. These types of dryers work by desiccant adsorbing the water vapour in the air and are popular for industrial applications and processes that require very dry air, such as the packaging of pharmaceuticals or transportation of electrical components.
CAPS supplies a range of Friulair dryers including standard and premium refrigeration, variable speeds, energy-saving, R513A refrigerant and adsorption dryers.
The FMD series are refrigeration dryers with low GWP R513A refrigerant. Engineered for maximum efficiency and eco-friendliness, these models use R513A refrigerant to minimize global warming potential. They offer excellent dew point control, ensuring reliable operation across varied conditions.
The ACT range has low pressure drops due to the ALU-DRY exchanger and is efficient due to the latest generation of compressors. It has a +3°C dew point, which is maintained even when operating conditions change using the three-way stainless steel hot gas by-pass valve. The range is designed to meet the most demanding applications up to a 300 m3/min.
The ACT ES ENERGY SAVING range of dryers was designed to reduce energy consumption using the principle of direct expansion applied to the ALU-DRY exchanger thermal mass. This allows the compressor to switch off when the dryer’s thermal demand is met by the cold mass of the aluminium module and the refrigerant evaporation accumulated in the evaporator. With the machine’s sensors, the electronic controller can manage the compressor and fan on/off cycles, optimising performance and limiting energy consumption, depending on the dryer’s working conditions. To achieve energy savings, the range is equipped with a standard capacitive condensate drain which prevents the expulsion of compressed air together with condensed water. Dedicated selection software calculates energy savings compared to the standard version.
The ACT VS variable speed refrigeration dryer is the most advanced Friulair’s refrigeration dryer range. The ACT VS range is equipped with the latest functions and energy saving technology, including a touch screen electronic controller which manages the machine’s operating parameters, controls the refrigerant’s compression and condensation speed using dedicated inverters. ACT VS has the advantages of the ACT PREMIUM range, and it lowers running costs compared to the standard version, which can be easily calculated by using the selection software developed for the energy-saving range.
Desiccant air dryers use a material, such as silica gel or activated alumina, to absorb moisture from the compressed air. The desiccant material is housed in a container, and the compressed air is passed through it. As the air passes through the material, the moisture is adsorbed, leaving dry air. Desiccant air dryers are ideal for applications that require extremely dry air, such as in the pharmaceutical, food, and electronics industries.
At CAPS, we pride ourselves on supplying the best equipment on the market, which is why we stock the PSK Series Heatless Desiccant Compressed Air Dryer. Known for its reliability, the PSK Series is an industry workhorse that requires minimal maintenance. One of its best features is the proprietary airflow switching valve that comes with a lifetime replacement warranty.
Refrigerated air dryers use a refrigeration system to cool the compressed air, causing the moisture to condense and separate from the air. The condensed moisture is then drained from the system, leaving dry air. Refrigerated air dryers are more commonly used in industrial applications, such as in manufacturing plants and automotive shops.
Both desiccant air dryers and refrigerated air dryers have their advantages and disadvantages. Desiccant air dryers are more effective at removing moisture from compressed air, but they require more maintenance and have higher operating costs. Refrigerated air dryers are less expensive to operate and require less maintenance, but they are not as effective at removing moisture from compressed air. Both will help to ultimately remove moisture and lower the dew point recorded on your machines.Â
Choosing the right type of air dryer depends on the specific needs of your application. If you require extremely dry air, a desiccant air dryer may be the best option. If you need a more cost-effective solution, a refrigerated air dryer may be the way to go. Regardless of which type of air dryer you choose, it’s important to properly maintain and operate it to ensure optimal performance and longevity.
For dependable industrial air dryers, reach out to the team at CAPS. As specialists in industrial air systems, our team at CAPS are dedicated to providing a strong service, and support when you purchase with us. Contact us today to explore our range of air dryers, available across Perth, Adelaide, Brisbane, Darwin, Kalgoorlie, Mackay, Melbourne, Newcastle, Launceston, and Sydney.
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