Emerson’s New Air Dryers Quadruple Maintenance Intervals in Rail Applications

Patented adsorbent drying material removes humidity from compressed air systems, reduces downtime, energy and life-cycle costs by extending maintenance schedules

 

HANOVER, Germany (June 22, 2020) – Today Emerson introduced two new compressed air dryers designed to significantly extend maintenance intervals, minimize downtime and reduce energy costs in rail applications, including brakes and door control. Typically, air dryers have an average service interval of less than two years. The AVENTICSTM RDD (Roll-Up Dessicant Drying) and RDDmin air dryers, have a service interval of eight years or 25,000 operating hours. The new products feature a proprietary adsorption medium that removes humidity from compressed air systems more efficiently, reducing energy usage with a smaller envelope size and weight. The dryers’ shock- and vibration-resistant design further enhances their reliability in tough rail applications.  

Humidity in compressed air can cause corrosion and ice blockages at low temperatures, often disabling door systems or freezing valves in the brake control circuit. Until now, conventional dryer systems relied on a granular adsorption medium. The shocks and vibrations that occur during rail operations cause channeling, air bypass and dust generation, which leads to a significant loss in drying performance. Consequently, the dew point increases. High water loading can cause a breakdown of the granulate bed resulting in frequent material changes and a reduced service life.

Emerson’s New Air Dryers Quadruple Maintenance Intervals in Rail Applications
The AVENTICS RDD air dryer features a new patented drying technology that has a significantly higher water adsorption capacity than other common air dryers.

To solve these problems, Emerson’s AVENTICS RDD technology uses adsorbent crystals immobilized in a durable polymer support structure, which is produced in a continuously embossed sheet and rolled up to tightly fit into a barrel-type housing for high shock and vibration resistance. Unlike com...

+ Read more

To solve these problems, Emerson’s AVENTICS RDD technology uses adsorbent crystals immobilized in a durable polymer support structure, which is produced in a continuously embossed sheet and rolled up to tightly fit into a barrel-type housing for high shock and vibration resistance. Unlike competing products using desiccant beats, the AVENTICS dryers resist excessive water loading and fully recover afterwards. This ensures constant performance throughout the lifetime of the product and reduced life-cycle costs. 

The RDD dryer is used for main air supplies on trains, whereas the RDDmini is used for auxiliary air supply, to driver seats for example. The efficient design means that the overall envelope size for both dryers is half that of other dryers currently available on the market, allowing for smaller envelope sizes and lower unit weight. The moisture uptake allows for a much higher efficiency air consumption rate of less than 15%, which reduces energy costs. Purge loss typically ranges above 20% for conventional products.

- Read less

 

Published by Emerson Automation Solutions on Jul 13, 2020

More information

Emerson Automation Solutions

Request More Information
 

emerson.com/automation
E: [email protected]
T: (314) 553-2000

Address
8000 West Florissant Avenue
P.O. Box 4100
St. Louis, Missouri
63136
United States
View map

 

Emerson Automation Solutions

emerson.com/automation
E: [email protected]
T: (314) 553-2000

Address
8000 West Florissant Avenue
P.O. Box 4100
St. Louis, Missouri
63136
United States
View map

 
 
 
 
 

Close
CONTACT EMERSON AUTOMATION SOLUTIONS
* sorry this is a required field