ADSORBTION AIR DRIERS
     
    DP Series

    Designed and tested to provide 100% clean, dry, oil-free compressed air at -40c atmospheric dew point, to safeguard your valuable pneumatic equipment.

    Trident Dryers are available in 19 models to suit your requirement. They work with pressures from 4 kg/cm2(g) to 70 kg/cm2(g) and flow upto 1920 m3/hr.

    Operation

     
    Prefiltration

              The moisture laden compressed air passes through the pre filter. Here moisture load is reduced through coalesence. Condensation is removed through the drain valve ADV1. At the oil filter (2) oil vapors are removed completely, small levels of oil/water condensation are purged through the valve ADV2. Compressed air is then passed through a 3 way valve into Tower.
    Drying

              The Towers are filled with Activated Alumina as desiccant (Molecular sieve available as option). When air passes through Tower 1 which consists of "DRY" Dessicant, it gets completely dried, and passes through check valve and After Filter(3). At the after filter, Desiccant fines are removed. Therefore dry compressed air passes out at the outlet. 
    Regeneration

             Regeneration takes place in 2 stages a) De-pressurisation b) By passing Dry air. Tower II consists of fully moist desiccant at pressure. This is suddenly De-pressurised by opening the purge valve. Water molecules weep out of the desiccant and appear on the surface. "Super Dry" purge air passes through the Regeneration "Nozzle" and the desiccant bed thereby completely carrying away the water molecules. Tower 2 gets regenerated and is ready for the next drying cycle
    Salient Features


          Purge economiser, an energy saving device reduces purge loss to as low as 50%.

          Programmable Controller, with clear functional displays, ensures uninterrupted operation even while tower changeover.

          Automatic drain valves in pre and oil filter to reduce moisture load and to ensure life of desiccant at no extra cost.

          All new Microprocessor based controller has a unique purge economiser. The dryer load can be manually set. It can also accept upto 3 compressor load/unload contact and compute dryer load dynamically. The purge is set accordingly. The controller also accecpts a pressure input and purge air is controlled accordingly.

    Application


      Instruments
      Machines 
      Paint shop 
      Textile Machines
      Pharma

    Specification
     
    Model Inlet Flow (m3/hr) End Connection Dimensions (mm) Weight 
    (kg)
    Height Width Depth
    DP - 72 72 3/4" BSP  1680 650 600 195
    DP - 96 96 1" BSP  1855 650 600 230
    DP - 144 144 1" BSP  1855 650 600 230
    DP - 192 192 1" BSP  1980 650 600 380
    DP - 288 288 1" BSP  2030 750 600 440
    DP - 384 384 1 BSP 2200 750 600 550
    DP - 480 480 2" NB  1450 1100 1100 620
    DP - 576 576 2" NB  1850 1100 1100 700
    DP - 768 768 2" NB  1850 1200 1100 850
    DP - 960 960 2 NB 2150 1200 1200 950
    DP - 1440 1440 3" NB 2150 1500 1300 1265

    DP - 1920

    1920

    3" NB

    2540

    1500

    1300

    1575

    Temperature Correction Factor
    Pressure Correction Factor

    Correction Factor

    Corrected Flow

    =

    Actual Flow

    Factor(T) x Factor(P)

    Choose the nearest higher model.
    Flow volume :275m3 / hr ; Working Pressure :6 kg/cm2 ; Inlet air temperature :45 c;
    REFERRING THE GRAPHS :Factor (T) = 0.9;Factor (P) = 0.88

    Requirement
     

    Flow volume

    Factor(T) x Factor(P)

    =

    275

    0.9 x 0.88

    = 347.3m3/hr
    Choose the nearest higher model i.e Model DP 384
    Ordering Method


    Example:


    DP 1920 is suitable for 1920 m3/hr with inlet pressure of 7 kg/cm2(g) and temperature of 38 c.