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Nano D1 Series
Modular Desiccant Air Dryers

3 – 24 scfm
Designed for use in the compressor room, at the point of application or integrated into your original equipment, nano D1 modular desiccant air dryers are an effective solution to the problems caused by contaminated compressed air.

Nano D1 NDL desiccant air dryers reliably give you:
• more for your money - everything needed for installation is in the box
• moisture & particulate protection of your production process
• lower life cycle costs - low energy costs and simplified maintenance
• built in dew point monitoring (optional)
• space saving - models up to 24 scfm can be easily wall mounted
• safe and quiet operation
• flows 3 - 24 scfm at 100 psig operating pressure
• peace of mind - the most reliable product of its kind
• combined filter and desiccant cartridges can be serviced in less than 15 minutes

Nano dryers have been 100% function and performance tested at the factory to ensure the highest standard of performance, delivering compressed air purity in accordance with ISO8573:1 – 2010, Class 2 dirt (1 micron) and Class 2 water (-40°F pressure dew point).
Energy saving dew point monitoring option can save up to 60% during reduced inlet moisture loading.
Model(s): NDL 010, NDL 020, NDL 030, NDL 040, NDL 050

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   Model
NPT(1) Inlet & Outlet
scfm(2)
Nm3/h(2)
Recommended Pre Filter(3)
NDL 010
⅜" (1)
3
5.1
NF 0008 M01
NDL 020
⅜" (1)
5
8.5
NF 0008 M01
NDL 030
⅜" (1)
10
17
NF 0015 M01
NDL 040
⅜" (1)
15
26
NF 0015 M01
NDL 050
⅜" (1)
24
41
NF 0025 M01
(1) NDL 010 to 050 have push to connect fittings on the inlet and outlet. All other models have NPT(F) threaded connections
(2) at inlet conditions of 100 psig and 100°F and a -40°F outlet pressure dew point. For all other conditions refer to the correction factors above
(3) recommended for all applications. Required when dryer is to be installed immediately downstream of an oil lubricated compressor. To order with a pre-filter add “-F” to the model number (i.e. NDL 120-F)

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   Specifications
Standard
Optional
Maximum Particle Size (ISO class) (4)
class 2 (1 micron)
class 1 (0.01 micron)
Maximum Water Content (ISO class) (4)
class 2 (-40oF pdp)
class 1 (-94°F)
Minimum Operating Pressure
58 psig
-
Maximum Operating Pressure
100, 101, 145 or 232 psig (5)
consult mdi
Recommended Operating Temp Range
34 to 100°F
-
Design Operating Temperature Range
34 to 122°F
-
Power Supply Requirements
100 to 240 VAC / 50 or 60 Hz
-
(4) per ISO 8573.1:2010 (E)
(5) NDL 010 to 050 are 232 psig MAWP as standard for USA; 101 psig MAWP for Canada. NDL 060 to 130 are 232 psig (MAWP) as standard; NDL 2110 to 6130 are 145 psig MAWP as standard. Higher pressures available. All pneumatically controlled dryers are 100 psig (MAWP)

➤Click Here for Pressure, Temp, & Dew Point Correction Factors Chart


Principles of operation

Heatless desiccant dryers are the most common due to their simplicity and hence low cost. A heatless twin tower dryer (see figure opposite) operates by removing moisture through adsorption onto a granular desiccant bed from the feed air (typically at 100 psig) as it flows up through a packed bed of desiccant, column A. Column B (having been previously used in drying the inlet air) is at atmospheric pressure and dry purge air from the outlet of column A is fed through a purge valve, expanded to near atmospheric pressure, and flowed in contra flow direction down through column B to effect the regeneration of its granular desiccant bed. When the desiccant in column A becomes saturated with water vapor (usually determined by a simple timer controller) the feed air is switched back to column B, after it has been pressurised, and the cycle continues.
D1 Desiccant Dryers Principles of Operation

System Performance

These advanced dryers use the pressure swing adsorption principle to efficiently dry compressed air. They use a heatless twin tower configuration housed in a modular design. Each column contains a unique (and patented) desiccant cartridge which incorporates an inlet water separator (D1 only) and outlet filtration. Wet air from the compressor aftercooler enters the dryer and is directed into column A. nano can provide F1 water separators and coalescing prefilters to ensure trouble-free operation for nano D-Series dryers. Bulk liquids (water) and particles are removed by the separator on the inlet of the cartridge. Water is retained within the dryer until the column is regenerated, when it will be vented to atmosphere as it is depressurized. Air passes through the desiccant bed where moisture vapor is adsorbed. Then the dry air passes through a particle filter which retains any desiccant particles (< 1 micron / ISO8573.1 class 2 for dust). Simultaneously, a small amount of dry air is counter-flowed down through cartridge B and exhausted to atmosphere, removing the moisture and regenerating the desiccant. The dryer is controlled by a PLC which periodically switches the solenoid valves, reversing the function of each column and therefore ensuring the continuous supply of dry air.
D1 Desiccant Dryers System Performance
Energy Saving Dew Point Control Option
• with this option, a dew point sensor is incorporated into the dryer providing the ultimate in energy savings
• the outlet dew point is constantly monitored allowing the cycle time to be adjusted depending on the actual moisture load saving valuable purge air
• easily field retrofit; includes dew point display
• the -ES option reduces valve actuation increasing service life and includes an extended 5-year valve warranty
Floor or Wall Installation
• can be floor or wall mounted - simply by rotating the feet 90° (standard on D1, optional on D2)


Nano D1 and D2 Series Air Dryer Dimensions
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Model
A Height (in)
B Width (in)
C Depth (in)
Weight (lbs)
NDL 010
17.6
10.3
6.7
20
NDL 020
17.6
10.3
6.7
18
NDL 030
25.5
10.3
6.7
30
NDL 040
35.3
10.3
6.7
41
NDL 050
47.1
10.3
6.7
56