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    • DSN Series
    Non-purge type
    Air dryer
    No consumption of regenerated air.
    As there is no purged air, silent operation is achievable.
    For regeneration, compressed hot air used and energy can be saved.
    Non-purge type dryer design can be fully modified based on the site conditions.
    DSN Series
    How it works
    • Moisture is absorbed by the adsorbent as humid air at the inlet point travels up the drying tower.
    • Some dry air at the outlet point is heated by the external regenerative heater and descends towards the regeneration tower as moisture of the adsorbent is evaporated and dried.
    • Hot and humid air which absorbed this moisture is cooled through a separately installed cooler after which condensate is discharged. The condensate is mixed with the intake air at the inlet point’s mixing valve, and sucked into the drying tower.
    • Moisture in the regeneration tower is sufficiently dried, stopping the heater while regeneration air continues to circulate, cooling the adsorbent.
    • As such, the 8-hour operating cycle is composed of 4 hours of drying, 2.3 hours of heating, and 1.5 hours of cooling and pressure equalization.
    Structure Diagram
    DSN Series
    Maximum Inlet Temperature 55℃
    Ambient Temperature 5~49℃
    Working Pressure 1.5~9.9kgf/㎢
    Power Supply 220/440V, 50/60 Hz, 1/3Ø
    Model Inlet Temp.: 38°C, Inlet Pressure: 7 ㎏f/㎢, Dew Point under pressure: -20°C and below
    Treating Flow Rate
    (N㎥/Min)    		 Max.
    Heater Capacity
    (KwH)    		 Avg.
    Power Consumption
    (KwH)    		 Activated Alumina Gel
    Charged volume
    (kgs/Tower)    		 Port size
    DSN-260 7.6 6.2 3.9 112 PT1 1/2"
    DSN-370 10.7 8.8 5.5 158 PT2"
    DSN-450 13 10.6 6.6 192 PT2"
    DSN-590 17 13.9 8.7 251 PT2 1/2"
    DSN-750 22 18 11.3 325 PT2 1/2"
    DSN-930 27 22.1 13.8 399 3"F
    DSN-1130 33 27 16.9 488 3"F
    DSN-1350 39 31.9 19.9 577 3"F
    DSN-1550 45 36.8 23 665 4"F
    DSN-2100 61 49.9 31.2 902 4"F
    DSN-3000 87 71.2 44.5 1286 6"F
    DSN-4100 119 97.4 60.9 1760 6"F
    DSN-5400 156 127.7 79.8 2307 8"F
    • Possible to manufacture models with operating pressure larger than 10 ㎏f/㎠.
    • Possible to manufacture models larger than standard conditions mentioned above.
    • STEAM HEATER can be combined or replaced.
    Capacity Determination Conversion Coefficient
    Conversion coefficient by Inlet Pressure
    Inlet Pressure (kgf/㎤) 2 3 4 5 6   7   8 9 10
    Conversion Coefficient 0.38 0.5 0.63 0.75 0.88 1 1.12 1.25 1.37
    Conversion Coefficient by Inlet Temperature
    Inlet Temperature (℃) 25 30 35 38 40 43 45 50 55
    Conversion Coefficient 2.0 1.52 1.17 1 0.9 0.78 0.7 0.56 0.44
    Address: Headquarters/Factory, 31, Gongdan 1-Daero 79beon-Gil, Siheung-Si, Gyeonggi-Do, Republic of Korea
    TEL: +82-31-498-0121 / FAX: +82-31-498-0172 / E-MAIL: sales@seyangcorp.co.kr
    COPYRIGHT 2008 Seyang Corporation. ALL RIGHTS RESERVED.
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