Products
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DSH Series
Heatless Desiccant-type Air Dryer
Selection of Air Dryer should be based on overall consideration of required dewpoint, initial investment costs as well as maintenance convenience. Our DSH Heatless Desiccant-type Air Dryer Series provide minimum dew point temperature of -40°C (under operating pressure) and are easy to maintain.
DSH Series
Basic Design of
Heatless Desiccant-type Air Dryer
Heatless Desiccant-type Air Dryer
- Desiccant with outstanding quality is used in order to maintain constant dew point temperature.
- Sufficient amount of contact with adsorbent should be ensured for complete dehumidification of compressed air.
- Minimizes amount of regeneration air to reduce energy loss.
- Adsorbent need to be designed to extend its lifetime.
Sufficient amount of adsorbent
- Filled with sufficient amount of adsorbent to keep constant dew point temperature by maintaining contact of compressed air with adsorbent for at least few seconds.
Diffuser
- Diffuser is installed at inlet and outlet point of the tower to distribute the flow of compressed air so that it not only forms equal contact with adsorbent but also prevents channeling. To amplify its effects, it is designed, in accordance with an appropriate ratio of the tower’s height and diameter.
Design of Tower
- To explain the theory behind the drying and regeneration process of the adsorption-type air dryer; in the drying process, condensation heat is generated as moisture of compressed air is adsorbed onto the adsorbent developing in a certain temperature layer of the tower. When the tower’s length is short, heat energy is emitted outside the tower. When regeneration of the adsorbent is in progress inside the tower, heat energy is needed to dehumidify the absorbed moisture in the adsorbent. If not enough condensation heat is stored in the drying process, the amount of heat energy needed in the regeneration process will be insufficient and as a result, even more purge air will be consumed in order to complete the regeneration process.
Valve System
- The reliability of various control valves that determine each operation cycle is critical. The DSH adsorption-type dryer’s shuttle valve and check valve are designed with special structures so that problems caused by moisture and solid impurities are completely resolved.
DSH Standard Condition
Table1- Conversion Coefficient by Intake Air Pressure
| Allowable Inlet Temperature | 60°C at Maximum |
| Allowable Ambient Temperature | 5~49℃ |
| Working Pressure | 1.5~9.9kgf/㎠ |
| Power Supply Voltage | AC110V, 220V |
| Processing Capacity | Inlet Temp. 38°C, Ambient Temp. 38°C, Working Pressure 7kgf/㎠, Dew Point -40℃ |
- Please contact us if operating conditions and processing capacity are different from our standard conditions.
- Dew point temperature lower than-40°C is optional.
Specifications
by DSH Models
by DSH Models
| Model | Processing Capacity | Product Size | IN/OUT caliber | Product Weight(Kg) | ||
| (N㎥/Min) | Height | Width | Depth | |||
| DSH-13 DSH-25 DSH-40 DSH-60 |
0.4 0.8 1.2 1.8 |
1965 1965 1965 2015 |
520 520 520 590 |
510 510 510 510 |
1/2" PT 1/2" PT 1/2" PT 3/4" PT |
70 125 125 150 |
| DSH-85 DSH-120 DSH-150 DSH-200 DSH-240 |
2.5 3.6 4.4 5.8 7.0 |
2180 2225 2225 2225 2225 |
690 875 875 875 875 |
805 1065 1065 1065 1065 |
1" PT 1 1/2" PT 1 1/2" PT 1 1/2" PT 1 1/2" PT |
240 250 265 355 355 |
| DSH-350 DSH-430 DSH-560 DSH-720 |
10.1 12.5 16.2 20.8 |
2365 2365 2365 2405 |
1070 1070 1155 1265 |
1075 1075 1155 1265 |
2" PT 2" PT 2 1/2" Flange 2 1/2" Flange |
440 585 705 900 |
| DSH-900 DSH-1100 DSH-1300 |
26.0 31.8 37.6 |
2435 2530 2550 |
1370 1490 1600 |
1440 1420 1515 |
3" Flange 3" Flange 3 "Flange |
1185 1390 1540 |
| DSH-1550 DSH-2100 |
44.8 60.7 |
2610 2755 |
2005 2155 |
1790 2030 |
4" Flange 4" Flange |
2175 2290 |
| DSH-3000 DSH-4100 DSH-5400 |
86.6 118.6 156.2 |
2850 2890 3115 |
2325 2460 2880 |
2240 2445 2560 |
6" Flange 6" Flange 6" Flange |
3945 4900 5985 |
- Please contact us if operating conditions and processing capacity are different from our standard conditions.
- Dew point temperature lower than-40°C is optional.
Capacity Determination Conversion Coefficient
Conversion coefficient by Inlet Pressure.
| Inlet Pressure (kgf/㎤) | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| Conversion Coefficient | 0.50 | 0.63 | 0.75 | 0.88 | 1.00 | 1.06 | 1.11 | 1.17 | 1.22 | 1.27 | 1.32 | 1.37 | 1.41 |
