EXTERNALLY HEAT REFGENERATIVE DESICCANT AIR DRYER
Generalize: Externally heated regenerative desiccant air dryer developed based o the successful design of the heatless type and heated type desiccant air dryers.
The purge air is pre-heated before regeneration to reduce its required capacity in order to achieve energy saving. It avoids the disadvantage of short switching period of heatless type desiccant air dryer, and at the same time it consumes much less heating energy like heated type desiccant air dryer.
This is the energy saving desiccant air dryer you can rely on!
EXTERNALLY HEAT REFGENERATIVE DESICCANT AIR DRYER Principle
This series of desiccant dryer incorporates the working principles of pressure swing adsorption and temperature swing adsorption.
Desiccant absorbs water moisture in drying column and being regenerated with high quality dried and heated purge air in regeneration column by air thermal diffusion and high-pressure difference mechanisms.
Features

Standard instrumentation
- Left and right column dryer
- Standard pilot air filter and regulator
- KRD series electronic control panel
Filtration package with by-pass piping
KAF series pre-filter P and coalescing filter S forming a filtration package can be installed in carious by-pass arrangements.
Basic packages include:
Advanced Design
- Durable soft-seated air tight check valves
- High quality pressure gauges display left column, right column and purge air pressure.
- LCD display panel for ease of monitoring dryer performance (Remark: LED display panel for heatless type desiccant dyers)
- Advanced yet user friendly electronic control panel
- Twin-columns filled with extra, high-grade activated alumina to ensure superior performance over time.
- Low power consumption heater prevent desiccant from premature aging ( externally heated type)
- High performance and reliable EU made butterfly valves, have working cycle over one million times.
Specifications
| Model | Air flow (Nm3/min) | Heater power (KW) | Power (V/hz) |
Air connection | Weight (kg) | Dimension (mm) | ||
| L | W | H | ||||||
| KRD-1MXF | 1.2 | 1.2 | DN25 | 144 | 605 | 560 | 1188 | |
| KRD-2MXF | 2.4 | 1.5 | 220V/50hz | 182 | 605 | 560 | 1646 | |
| KRD-3MXF | 3.8 | 2 | 211 | 750 | 560 | 1553 | ||
| KRD-6MXF | 6.5 | 3.0 |
380V/50hz |
DN40 | 365 | 973 | 800 | 1818 |
| KRD-8MXF | 8.5 | 3.5 | DN50 | 560 | 1062 | 900 | 1950 | |
| KRD-10MXF | 10.7 | 3.9 | 645 | 1162 | 900 | 1880 | ||
| KRD-12MXF | 13 | 3.9 | 720 | 1162 | 900 | 2090 | ||
| KRD-16WXF | 17 | 5.1 | DN80 | 930 | 1374 | 1100 | 1908 | |
| KRD-20MXF | 23 | 5.7 | 1120 | 1374 | 1100 | 2208 | ||
| KRD-25MXF | 27 | 7 | 1260 | 1426 | 1150 | 2160 | ||
| KRD-30MXF | 32 | 8.2 | 1370 | 1616 | 1200 | 2208 | ||
| KRD-40MXF | 45 | 110 | DN100 | 1700 | 1666 | 1200 | 2402 | |
| KRD-50MXF | 55 | 12.5 | DN125 | 2100 | 2016 | 1400 | 2472 | |
| KRD-60MXF | 65 | 15 | 2450 | 2016 | 1400 | 2672 | ||
| KRD-80MXF | 85 | 20.4 | 2800 | 2218 | 1300 | 2693 | ||
| KRD-100MXF | 100 | 30 | DN150 | 5240 | 2820 | 1635 | 3014 | |


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