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Brand: Donaldson
Donaldson Ultrapac HL Heatless Adsorption Dryer ALD / MSD
Description
A heatless adsorption dryer with filters in two dew point versions
The Donaldson Ultrapac HL is a heatless-regenerated adsorption dryer for compressed air and nitrogen at 4 to 16 bar g, available in ten sizes from 100 to 1000 m3/h nominal flow. Two model types are offered: the ALD for moderate operating temperatures and a pressure dew point of -40 °C (Class 2 under ISO 8573-1:2010), and the MSD for high-temperature applications with pressure dew points down to -70 °C where sizing and operating conditions allow. Each dryer is a complete purification package with a coalescing pre-filter and an after-filter using UltraPleat media, and the pre-filter has an electronic zero-loss level-controlled condensate drain with function control and alarm message.
Two adsorber vessels work in turn: while one dries the air, the other is regenerated by a partial flow of dry air expanded through an orifice. Standard models switch on a timer. Superplus models add the Ultraconomy dew point control, where a dew point transmitter triggers regeneration so the desiccant capacity is fully used. Vessels and frame are welded steel, the pipework uses a press-fit design, and the unit has robust shuttle valves and solenoid membrane valves.
Technical specifications
| Parameter | Specification |
|---|---|
| Type | Heatless regenerated twin-tower adsorption dryer with pre- and after-filter |
| Medium | Compressed air or nitrogen |
| Pressure dew point | ALD: -40 °C at 7 bar g; MSD: -70 °C to -40 °C depending on sizing and conditions |
| Air purity classes (ISO 8573-1:2010) | ALD: 1-2 : 2 : 2; MSD: 1-2 : 1-2 : 2 |
| Operating pressure | 4 to 16 bar g |
| Operating and ambient temperature | 5 to 50 °C; indoor installation |
| Nominal conditions | 7 bar g, 35 °C inlet, 100 % saturated |
| Adsorber vessels | Carbon steel, design 16 bar g, -10 to +60 °C, stainless steel internals for flow distribution |
| Piping | Galvanized carbon steel, PN16 flanges |
| Filter housings | Aluminium, 16 bar g design pressure, 65 °C |
| Controller | Circuit board with LED indicators (standard) or LCD text display (Superplus) |
| Power supply | 230 V AC 50-60 Hz; 24 V DC or 115 V AC optional |
| Protection class | IP 54 to IEC/EN 60529 |
| Contacts | Potential-free alarm contact and remote On/Off contact included |
Sizes, purge air and dimensions
Nominal flow is stated at 7 bar g and 35 °C, with purge air as an average at 1 bar and 20 °C. Differential pressure is the initial value.
| Size | Nominal flow | Purge air ALD / MSD | Initial pressure drop | Connection | Weight |
|---|---|---|---|---|---|
| 0100 | 100 m3/h | 15.0 / 20 m3/h | 90 mbar | 1″ | 155 kg |
| 0150 | 150 m3/h | 23.0 / 30 m3/h | 210 mbar | 1″ | 185 kg |
| 0175 | 175 m3/h | 26.3 / 35 m3/h | 210 mbar | 1″ | 245 kg |
| 0225 | 225 m3/h | 34.0 / 45 m3/h | 115 mbar | 1 1/2″ | 245 kg |
| 0300 | 300 m3/h | 45.0 / 60 m3/h | 155 mbar | 1 1/2″ | 290 kg |
| 0375 | 375 m3/h | 56.0 / 75 m3/h | 240 mbar | 1 1/2″ | 370 kg |
| 0550 | 550 m3/h | 83.0 / 110 m3/h | 195 mbar | 2″ | 400 kg |
| 0650 | 650 m3/h | 98.0 / 130 m3/h | 255 mbar | 2″ | 475 kg |
| 0850 | 850 m3/h | 128.0 / 170 m3/h | 265 mbar | 2″ | 565 kg |
| 1000 | 1000 m3/h | 150.0 / 200 m3/h | 330 mbar | 2″ | 646 kg |
Options, sizing and documents
Defined options include 24 V DC or 115 V AC supply, a purge orifice for a specific operating pressure, a 4 to 20 mA dew point output on Superplus models, a tropical version using short-cycle operation for inlet temperatures up to 50 °C, a stainless-steel -70 °C dew point measuring system, and seaworthy or wooden-box packaging. To size a unit, divide the required flow by the correction factor for your operating pressure and inlet temperature in the datasheet table. Donaldson’s worked example, 200 m3/h at 30 °C and 10 bar g for a -40 °C dew point, gives 132.5 m3/h and selects an ALD 0150. Send flow, pressure, inlet temperature and dew point target to confirm the size. See the compressor and air treatment category.
Datasheets & Documents
- Datasheet Donaldson Ultrapac HL MSD/ALD 0100-1000 datasheet (F119252) Download
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About brand
Donaldson is a filtration company headquartered in Bloomington, Minnesota, USA, founded in 1915. Its range covers compressed air and gas filtration, dryers and filter housings, gas turbine air intake filters, dust collection and engine and hydraulic filtration. Seven Star LLC, an independent supplier in Muscat, offers Donaldson products to industrial buyers on request.
Donaldson compressed air and process filtration
Donaldson compressed air products include industrial filter housings such as the DF Ultra-Filter, filter elements for oil aerosol, water and particle removal, and adsorption dryers for dew point control. Each product has a datasheet giving flow range, operating pressure, connections, materials and ordering codes, and the housings accept several element grades so the same body can be matched to different air quality needs.
Choosing a Donaldson product
Selection starts from air flow in m3/h, operating pressure, required air quality and connection size. Send the operating conditions and the model code with your enquiry and Seven Star LLC will confirm availability and documents before you order.
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Frequently Asked Questions
What is the difference between ALD and MSD?
ALD is for moderate temperatures and a -40 degrees C dew point; MSD is for high temperatures and dew points down to -70 degrees C.
What pressure range does the Ultrapac HL cover?
4 to 16 bar g, with nominal ratings at 7 bar g and 35 degrees C inlet.
Are filters included?
Yes. A pre-filter with an electronic zero-loss drain and an after-filter with UltraPleat media are part of the package.
What does Ultraconomy do?
On Superplus models a dew point transmitter controls regeneration so the desiccant capacity is fully used.
What power supply does it use?
230 V AC 50-60 Hz as standard, with 24 V DC and 115 V AC optional.
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