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heatless regenerating adsorption dryer
Donaldson Ultrapac MSD 0005 – 0035 Tropical
5 to 35 m3/h
- 5 to 35 m cubed/h flow
- -40 degrees C dew point
- Residual water content of 0.11 g/m cubed
- Low air wastage thus low running cost
- Totally self contained with just air-in, air-out, condensate outlet and power
- Wide range to suit wirtually all requirements
Product detail
Everything you need to specify
The Ultrapac ALD SP is a heatless self-contained compressed air dryer. It has a dew point of -40 degrees C giving a residual water content of 0.11 g/m cubed. The operating temperature of -40 degrees C and particulate filter on the output ensures the delivered air is suitable for use in contact with food and food packaging.
The system is fitted with a dew point regulator which means that the saturated desiccant media is only regenerated when necessary (or after 6 hours to equalise media use). This saves the maximum possible amount of purge air thus significantly reducing the running costs compared to units without this facility. The range suits virtually all applications with the smaller models being ideal for installation at the point of air use.
Features & Benefits
- Purification package complete with pre and after filter
- Pre-filter with electronic, level controlled condensate drain, inc. function control and alarm message
- Generous dimensioned filters, large filtration surface, therefore low pressure drop and low operating costs
- Dewpoint depending on control, startup device, bypass, pneumatic control, free of silicone and extractable components.
- 5 sizes available, matched to the compressort flows, with 3 selectable pressure dew-points each.
Additional Information
There are range numbers e.g. (P)-GSL N, which in the case of filter elements are often followed by a case size e.g. 03/10. And many of these come with different filter pore sizes e.g. 1 to 250 microns. Every variation is given a unique article number e.g. (P)-GSL N 03/10 with a 250 micron pore size has an article number of 1C235030-93. Thorite uses the Donaldson article number as its part number, this guarantees no ambiguity of part number in the supply chain.
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)
4 to 16
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.
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WHAT WE DO
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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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