We’ve used ADT across a few different projects. What keeps us going back is they actually know how our sites work, and work with us to find the best solutions.
Heatless regenerating adsorption dryer
Donaldson Ultradryer HRS+ Zero Purge Desiccant Dryer
Supporting Energy Efficiency with the Ultradryer+ Option
- Low operating cost
- Dry Gas/Purge Cooling On-Demand
- Easy maintenance and access to key components
Product detail
Everything you need to specify
The HRS+ version is the most energy-conscious model in the Ultradryer+ dryer lineup, designed for continuous operation. This zero purge desiccant dryer uses ambient air drawn in by a blower for desorption and cooling, helping to provide effective drying performance while minimizing compressed air consumption.
With flow capacities from 375 to 8,760 m³/h (220 to 5,158 scfm), the HRS+ supports a range of industrial applications requiring clean, dry compressed air and stable dewpoints.
Features & Benefits
- Desorption and cooling with ambient air drawn in by a blower (Blower Purge Dryer functionality integrated)
- Desorption in counter-current flow for effective drying
- Designed to support energy-saving with zero purge concept and low desorption temperature
- Low operating cost
- Dry Gas/Purge Cooling On-Demand
- Easy maintenance and access to key components
- Pressure dewpoints of -40°C /-40°F (at 7 bar/100 psig) or lower can be achieved.
Applications
- Automotive and electronics manufacturing
- Food and beverage industries
- General industrial compressed air systems
THE FINER DETAILS
Technical Specifications
Brand
Donaldson
Type
Dessicant
Product Type
Dryers
Series
HED
Ambient temperature (degrees C):
+4 to + 50
Power use (W):
40
Operating Pressure (bar)
7
Why it matters
Clean, dry air pays back
The right filtration and drying shows measurable returns across the whole facility.
– Air loss
20-30%
Reduction in total air loss when leaks are properly sealed and repaired.
British Compressed Air Society
– ENERGY SAVINGS
~7%
Energy savings per bar of pressure drop recovered when filters are clean & dryers cleared
Hayley Dexis
– ELECTRICITY REDUCTION
10-15%
Electricity reduction as compressed air accounts for up to 30% of a facility’s total electricity bill
British Compressed Air Society
– INCREASED LIFESPAN
20-30%
Increase in the lifespan of pneumatic tools. Clean, dry air prevents this internal wear and tear.
Alup Kompressoren
All statistics have been researched and reported within reputable industry reports.
OUR Accreditations
WHAT WE DO
Find us by service or sector
Total care
More than a supplier – we’re a service partner
We provide complete sales and service support on all types of compressed air and gas treatment equipment. Our primary function is on‑site servicing of desiccant and refrigerant dryers, filtration and condensate management.
This includes
- Total Care Contracts
- Maintenance Contracts
- Call‑out servicing
- Trouble‑shooting service
- Operational advisory service
- Air Quality Testing
We also provide rental equipment
Whether you’re managing planned system maintenance, expanding temporary capacity, or facing an emergency breakdown, ADT provides short- and long-term rental units designed for immediate deployment.
Learn more about our financing options
ADT provide attractive finance deals to give you different options to pay for your equipment, including hire purchase and fixed-term rental options.
In our clients’ words
Trusted on the plant floor for a decade
Project Engineer, Waste Management
Didn’t realise how much our old system was costing us until ADT came in and did an assessment. The retrofit paid for itself faster than we expected.
Engineering Technician, Pharmaceutical Manufacturing
ADT continues to be a trusted partner of ours, consistently delivering reliable service and exceptional support whenever we need it.
Mechanical Planner, Cement Works & Quarry
We have worked with ADT for over 10 years and deeply appreciate their unparalleled understanding and industry expertise.
Technical Engineer, Nuclear Power Station
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