Clean Air Treatment

Air Dryers

H Series Non-Cycling Dryers

12 to 125 SCFM
Pressure Dewpoint to 38°F

Kaeser’s H series dryers are simple and reliable – even when operating in ambient temperatures as high 110°F . Constructed from high-quality materials and designed for a long service life, these dryers offer a very low pressure drop. Our proven stainless-steel heat exchanger technology maximizes performance and produces dew points as low as 38ºF. Integrated no-loss drain quickly and automatically removes condensate for optimum dryer performance, and the reduced footprint minimizes space requirements.

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Secotec Thermal Mass Cycling Dryers

20 to 885 CFM
Pressure Dewpoint to 38°F

KAESER Secotec dryers feature reliable, energy saving cycling control. They operate the refrigerant compressor only when necessary by using a thermal storage medium. The refrigerant compressor cools the medium to a predetermined temperature and then cuts off, allowing the medium to cool the air and condense the water vapor.

Important features and advantages:

  • Highly efficient Secotec® cycling control with high thermal storage capacity
  • Minimal pressure drop and no prefilter required
  • Highly effective, stainless steel condensate separator
  • No-loss electronic condensate drain removes condensate
  • Quick access to all components for easy, low-cost maintenance
  • Durable, industrial-quality control cabinet
  • Easy to read and reliable control panel
  • Elevated condenser avoids pickup of dust and debris from the floor

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Energy Saving Refrigerated Dryers

Demand Manager (non-cycling control) 600-3000 CFM
Dual Control (energy saving control) 1000-3000 CFM
Pressure Dewpoint to 38°F

KAESER’s Energy-saving Dryer series offers a choice of two control options to suit your application. The Dual Control models are perfect for systems with varying air demands, while the Demand Manager models efficiently handle systems that are started and shut down routinely and with a constant air demand.

Important features and advantages:

  • Low pressure drop, non-fouling heat exchanger
  • Integrated 3 Micron particulate filter and moisture separator with microprocessor controlled filter monitor removes contamination
  • No-Loss electronic drain traps for reliable condensate removal
  • On/off load digital scroll refrigeration compressor (Dual Control models only)
  • Hot gas bypass control (Demand Manager models only)
  • State-of-the-art control system with timed auto-start and stop
  • Optional cold coalescing oil removal filter eliminates oil aerosols to 0.008 ppm, for a complete air treatment system in one package

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Energy Saving Dual Control

Real energy-savings are the result of the right dryer and optimized dryer control system. A dryer should only consume electrical power when actually drying air.

For example, a Dual Control dryer is ideally suited for applications with varying demand. Its direct expansion, on/off load refrigeration system ensures a consistent dew point. With a 60% air demand, the controller tells the digital scroll refrigeration compressor to operate loaded at 60% of the time. With the compressor off during the remaining time, 40% of dryer power consumption is saved.

In another example, a Demand Manager dryer with its non-cycling, direct expansion refrigerant system and rapid response by-pass will ensure tight temperature control and uniform performance in applications having consistent demand.

The auto start/stop timer, standard on both models, also contributes to energy savings by allowing the dryer to automatically start and shut off at pre-determined times.

Plus, every kilowatt saved reduces emissions. A dryer running in an air system may handle perhaps 50 to 70% of the full load – conditions that particularly favor a Dual Control dryer. Annual savings can run into thousands of dollars.

Superior filtration

Kaeser energy-saving dryers come standard with a Filtered Separator (KFS) that removes bulk liquids and particulates to 3 micron. The dryers can be equipped with an optional Cold Coalescing Oil Removal (KOR) Filter that eliminates oil aerosols to 0.008 ppm. Because this filter is used inside the dryer it is more efficient than external coalescers operating at normal compressed air temperatures. Internal mounting also saves floor space and installation costs.

Heatless Desiccant Dryers

7 to 50 CFM Wall-Mounted (KADW Series)
40 to 5400 CFM Free Standing (KAD Series)
Pressure Dewpoint to -100°F

Kaeser Adsorptive Desiccant dryers (KAD Series) employ a heatless regenerative design to produce pressure dew points as low as -100°F. Solid-state controls with adjustable cycle timers allow KAD Series dryers to be easily adapted to user requirements. The optional purge saver control dramatically increases efficiency at reduced flows, and includes active tower lights and a switching failure alarm.

KAD dryers are ideally suited for moisture sensitive applications such as electronics and pharmaceutical manufacturing, food processing and brewing.

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Kaeser Adsorptive Desiccant Wall-mounted dryers (KADW Series) are fully enclosed in a ready-to-install cabinet, and feature a control panel on the exterior for easy monitoring. The KADW dryer is completely assembled, piped and wired, fully charged with desiccant. Units can be mounted virtually anywhere to conserve floor space. Filtration packages are also available.

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Heated Purge Dryers

300-3200 CFM
Pressure Dewpoint to -40°F

KAESER KED Series heated purge air dryers use an external heater to reduce purge air usage for efficiency and less compressed air waste. Solid state logic accurately controls inlet and purge valves which direct wet compressed air to the regenerated tower, and heated purge air to the tower in need of regeneration. The process of adsorption and desorption can be repeated several thousand times before the desiccant must be replaced.

Advantages:

  • Excellent energy savings by using only 7% purge air for regeneration
  • Reliable controls and instrumentation meet NEMA 4 standards
  • Color change moisture indicator signals elevated dew point
  • ASME pressure relief valve
  • Optional Energy Management Controls to match energy use to compressed air demand

Blower Purge Dryers

500-4300 CFM
Pressure Dewpoint to -40°F

KAESER KBD Series externally heat-regenerative blower purge desiccant dryers produce dew points as low as -40°F. Twin desiccant beds of activated alumina alternate between drying and regenerating, with regeneration being accomplished with heated ambient air at just above atmospheric pressure. The heated ambient air readily drives adsorbed moisture off of the desiccant preparing the it for another adsorption cycle. The moisture-laden regeneration air exhausts to atmosphere during the regeneration process. KBD dryers can regenerate with little (about 1%) or no process (purge) air loss.

Solid state logic accurately controls inlet and purge valves which direct wet compressed air to the regenerated tower, and heated ambient air to the tower in need of regeneration. The process of adsorption and desorption can be repeated several thousand times before the desiccant must be replaced.

Advantages:

  • Outstanding energy savings by heating atmospheric air for regeneration and using no purge air
  • Reliable controls and instrumentation meet NEMA 4 standards
  • Color change moisture indicator signals elevated dew point
  • ASME pressure relief valve
  • Optional Energy Management Controls to match energy use to compressed air demand

Hybrid Refrigerated / Desiccant Dryers

700 to 5,300 CFM
Pressure Dewpoint to -40°F

Desiccant dryers are commonly used to bring the pressure dew point well below freezing (commonly -40°F) in order to prevent moisture from precipitating in the compressed air system and production equipment. In most cases, the need is actually seasonal and a refrigerated dryer is perfectly capable of meeting air quality needs for most of the year – and with much lower operating and maintenance costs. It is possible to install separate refrigerated and desiccant dryers in series for these applications. Better still are combination or “hybrid” dryer systems that combine dryer technologies into a high performing dryer with even lower operating costs.

No conventional desiccant system comes close to KAESER Hybritec dryers when it comes to lowest total life cycle costs. This is mainly due to Hybritec’s lower energy consumption and the fact that these versatile dryers become even more cost-effective as energy prices increase. Hybritec dryers also require less maintenance – further reducing cost of ownership.

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Filtration

20-21,250 CFM
Up to 900 PSIG

On average, ambient air contains about 190 million particles of dirt, hydrocarbons, viruses and bacteria per cubic foot. The majority of these contaminants enter the compressor and may still be present in the resulting compressed air. If the air is not properly cleaned, these contaminants can damage pneumatic machinery and air tools, or even wind up in the end product.

Kaeser offers a complete line of filters including: filtered separators, particulate filters, oil removal filters, extra fine oil removal filters and vapor adsorbers. Features Include:

  • Multi-layer, matrix-blended fiber media ensures reliable and efficient particle retention
  • Efficient operation even under low use conditions (down to 5% of rated flow capacity)
  • Filter element seals to housing
  • Durable, anti-corrosive housing with epoxy powder coating inside and out
  • Element supported by oil and acid resistant stainless steel orifice tubes
  • Standard differential pressure gauge on most models
  • Internal automatic drains standard up to 780 CFM oil removal filters and 250 CFM moisture separators

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