D0903 3/4" Double Diaphragm Pumps

The D0903 is designed for handling light to medium viscosity fluid with high flow rates up to 120 liters per minutes. jQuery UI Accordion - No auto height


  • High Flow rate, deliver up to 120 liters per minute, in a small portable package
  • Clean, hands-off fluid handling
  • Quiet running, up to 85dB with easy to use remote muffler capability for even lower noise levels
  • Application

      Typical Application
    • Drum transfer for fluids up 5000 cps
    • Circulation of low viscosity inks, stains and dyes
    • Waste fluid removal
    • Low viscosity adhesive supply
    • Cleaning fluids and detergents
    • Plating and dip tanks
    • Water treatment
    Typical Fluids Handled
    • Waterborne paints
    • Solvent borne paints
    • Acid catalyzed varnishes, enamels and lacquers

    Techanical Data

    Maximum Fluid Working Pressure 8.3 bar
    Maximum Flow Delivery 120 LPM
    Maximum pumpable fluid viscosity 5000 CPS
    Maximum Air Consumption 1200 LPM
    Maximum Suction Lift 8.3m
    Maximum size pumpable solids 2 mm
    Air pressure operating range 1.5 - 8.3 bar
    Air Inlet Size 1/2 pt
    Fluid Outlet Size 3/4 pt
    Fluid Inlet Size 3/4 pt



    COSMOSTAR Diaphragm Pumps

    COSMOSTAR Air-Operated Double Diaphragm Pumps series are ideal for bulk transfer of your solvent or water-based, low to medium viscosity inks and ingredients. They offer easy maintenance with an extremely reliable patented air valve for true non-sticking operations. Air-operated double diaphragm pumps are a very efficient type of transfer pump. These pumps can handle liquids with high, medium or low viscosities. They are also designed to pump liquids that feature a considerable amount of solids. This type of pump can be constructed out of materials that can handle pumping even the most acidic chemicals. Our double diaphragm pumps are designed to operate at low air pressure while delivering a smooth, reliable flow. This is ideal for transferring a wide variety of fluid. Installed with Teflon plate at each of the diaphragm compartments, double diaphragm pump guarantees high endurance and durability.