Van Air EMD Series cycling refrigerated compressed air dryers provide a consistent dew point when running at less than the design capacity. Since the actual energy cost is directly related to the amount of air dried, energy savings is maximized. For example, in a pneumatic system designed to dry 1000 SCFM, a cycling refrigerated air dryer running at 75% of the design capacity would save approximately $1,000 per year in electrical energy costs versus a non-cycling dryer. At 50% of design capacity, the savings would increase to $2,000 per year.

EMD Series cycling refrigerated compressed air dryers use direct expansion cooling to prevent dew point spikes, an inherent problem for competitive models using a thermal mass design. In thermal mass dryers, a refrigerant is used to cool a mass. This mass is then used to cool the compressed air. The time required to cool the mass delays cooling of the compressed air, resulting in dew point spikes up to 60° F that last 30 minutes or longer. These dew point spikes allow for extensive moisture carryover throughout the system.

In contrast, the Van Air cycling refrigerated dryer maintains a constant dew point temperature which helps eliminate moisture carryover. The constant dew point temperature provided by our EMD Series cycling refrigerated air dryers can be achieved because of its unique flooded evaporator design. Unlike competitive thermal mass dryers, we display a digital readout of the air dew point temperature on the cycling refrigerated dryer and issue a written guarantee of dew point performance.

Standard units are available from 80 through 8,000 SCFM. Custom units are available up to 25,000 SCFM. The capacity of the EMD Series cycling refrigerated compressed air dryer is based on operating conditions of 100° F inlet air temperature, 100° F ambient temperature and 100 PSIG operating pressure. Dryers rated for higher pressures or other operating conditions are available.

Our knowledgeable technical sales associates are available to assist you with any questions that you may have and to aid you in selecting the appropriate equipment for you compressed air dehydration needs. Contact us today at 1-800-840-9906 or Email Us to discuss how Van Air compressed air dryers and equipment can help you with your compressed air drying needs.

EMD Series Dimensions and Specifications - Inches and Pounds

If any conditions vary from the standard of 100 PSIG, 100° F inlet temperature or 100° F ambient, use the listed correction factors against the standard flow.