Super dry compressed air.
Regenerative desiccant dryer NEQXUS QX-DD/AK
-40°C pressure dew point, residual moisture of 0,117 g/m³, optional down to -70°C dewpoint, residual moisture of 0,00269 g/m³

Regenerative adsorption dryers use a porous desiccant that adsorbs moisture by collecting it in its myriad pores, allowing large amounts of water to be retained by high-density adsorbent columns.


The most common pressure dew point for these dryers is -40°C. While this value may be required for sensitive processes or instrumentation, this level of dryness is not normally required in general manufacturing unless the tubes are exposed to freezing temperatures.

The desiccant is located in two separate drying towers. The compressed air to be dried flows through one tower while the desiccant is regenerated in the other tower. Regeneration is accomplished by reducing the pressure in the tower and passing purge air through the desiccant bed.

All of these dryers require filtration at the inlet to keep liquid water and oil from damaging and contaminating the desiccant, and a post-filter at the outlet captures desiccant dust (created by the constant movement of the desiccant beads against each other caused by the airflow through the dryer).


GUARANTEED PERFORMANCE


Each and every NEQXUS adsorption dryer is 100% factory tested for function and performance to ensure the highest standard of performance. Compressed air at ISO8573-1.2010 purity, Class 2 dirt (1 micron) and Class 2 water (-40°C pressure dew point, residual moisture 0.117 g/m³) Optional down to -70°C dew point, residual moisture 0.00269 g/m³, Class 1 water.
Desiccant Compressed Air Dryer

The adsorption dryers are designed for a pressure dew point of -40°C as standard across the entire dryer series. Dew points down to -70°C are optionally available.


Constant flow and pressure

Pressure is equalized before switching columns to ensure uninterrupted compressed air and constant pressure. Pressure equalization also ensures long desiccant life by minimizing desiccant abrasion.

Maximum corrosion protection

High-strength aluminum columns are corrosion protected and then powder coated externally to provide maximum protection for corrosive environments. Picture shows a QX-DD with energy saving control as standard and optional activated carbon stage.

Advantages at a glance


  •    Energy-saving dew point control option that enables energy savings of up to 60% (standard from QX 100 DD). The outlet pressure dew point is continuously       monitored, so the regeneration cycle can be adapted to the humidity load, thus saving valuable purge air.
  •   -40°C pressure dew point as standard (residual moisture 0.117 g/m³) optionally up to -70°C pressure dew point, (residual moisture 0.00269 g/m³)
  •    QX 24 to QX 160DD use integrated check valves and four pilot-operated solenoid valves for proven performance and reliability.
  •    On QX 190 DD through QX 1000 DD.  Inlet, exhaust and discharge air are controlled by valves that are integrated into the upper and lower manifolds. 
  •    The valves provide unrestricted flow capacity and are designed for durability, ease of maintenance and long service life
  •    Exhaust air is ducted to easy-to-maintain mufflers behind the lower manifold pipe. The air is then vented to atmosphere below the dryer.
  •   The dryers are operated by a robust and reliable PLC control system that provides valuable functions such as "power on," "operating hours," "maintenance required,
  •    Dew point indication, and "Valve position."
  •   The memory capacity built into the PLC allows the control system to resume at the point where it left off in the drying cycle, ensuring consistently clean and       dry       compressed air. 
  •   Compressor synchronization is a standard energy saving feature that provides the dryer with a signal from the compressor or equipment at the point of use and stops,     to avoid purge losses when drying is not required.
  •   All NEQXUS QX-DD series desiccant dryers are 100% factory tested for function and performance.


Share by: