Donaldson offers line of non-cycling refrigerated compressed air dryers

Donaldson's non-cycling refrigerated compressed air dryer range focuses on reliable, constant dew point performance in all flow conditions. Excellent heat transfer coefficients and extremely low pressure drop allows the Donaldson non-cycling dryer to outperform competitive products in protecting compressed air systems and improve manufacturing processes.

Donaldson offers three non-cycling refrigerated compressed air dryer series, each with unique benefits and features.

  • The space-saving small footprint of the Donaldson SD Series dryer (10-40 scfm) combines energy efficiency in a compact model and includes a colored dew point indicator to display the dryer dew point at all times. The SD Series offers a one-piece brass, bypass operation that is activated in one single motion.
  • Donaldson VF Series dryer (50 – 2,000 scfm) leads the industry in delivering consistent performance from 0 to 100 percent load. The patented Variable Flow high-efficiency aluminum heat exchanger uses a three-step process to remove condensed moisture from the chilled compressed air, providing separation efficiency in excess of 98 percent throughout the dryer's entire flow range.
  • Air-cooled and water-cooled designs are available in the Donaldson AR Series dryer (2,500 – 10,000 scfm), along with a number of customized options to match specific application requirements.  Characterized as the most efficient system in today's market, the Donaldson AR Series dryer is the preferred design of the automotive and industrial plant customers.

Donaldson uses only R-134a, an environment-friendly, 100% chlorine-free refrigerant as standard in all refrigerated compressed air dryers. The R-134a is a one-blend refrigerant, easy to service and consistent in performance.

All Donaldson dryers are designed to provide the highest level of value available in the industry – reliable performance to CAGI ADF 100 specifications while consuming the lowest amount of energy possible. Donaldson has the engineering, manufacturing capability and experience to design dryer systems of any size – with pressure up to 10,000 psig and volumes up to 50,000 scfm. Their full line of products includes non-cycling and cycling refrigerated dryers, heated and heatless regenerative desiccant dryers, industrial filters and separators, and process water chillers.

For more information, visit the company's website at or contact Donaldson Company at (800) 543-3634.

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