Doxe series


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Doxe series

  • continuous capacity control 0-100%, adjustable with pump at rest or in operation
  • plunger stroke adjustable from 0 up to 70 mm
  • plunger speed from 30 up to 110 strokes/min
  • metering accuracy better than 1% throughout the normal operating range of 10-100% of capacity.
  • maximum liquid temperature for continuous operation:
    • 300°C with metal pump heads
    • 80 to 100°C with ceramic plungers
    • 50°C with PVC pump heads
  • required NPSH, less than 0.3 kg/cm² abs. under normal operating conditions
  • groupable in multiplex units, also with pumps of different series
  • capacity adjustment system, differential type, with satellite and planetary gear system, with mechanical return stroke
  • crankcase made of cast iron and completely enclosed, with oil splash lubrification
  • available in two series:
    • DOXE-2 with max. allowable plunger thrust 10000 N
    • DOXE-3 with max. allowable plunger thrust 30000 N
    single acting plunger type pumping heads

  • single or double ball check valves, upon request; only single, due to the dimensions, for the models 100x70 and 125x70
  • high pressure type, with special const ruction, easily replaceable valves
  • high accuracy liquid heating type, with incorporated heating jacket
  • pump body made of metal or plastic materials
  • flanged suction and discharge connections
  • packing for high pressure or temperature are available
  • Doxe metering pump
    Doxe metering pump
    Doxe metering pump



    Doxe metering pump

    double acting pumping head
    • cylinder liner inserted and easily replaceable
    • plunger and cylinder liner removable from pump body without disassembling
    • valves with replaceable seats and removable without disassembling the pumping head
    • standard construction material AISI 316 and AISI 304 stainless steels, for all the parts in contact with the liquid; other materials upon request

      driving motors - speed reducers

    • three phase, four poles, B5 or V1 flanged type electric motors are normally supplied with dimensions according to IEC-UNEL standards, also B3 base assembled motors are normally provided
    • speed reducers with cylindrical or worm-wheel gears and oil splash lubricated
    Doxe series
    capacity control systems

    • manual control, with pump at rest or in operation, by handwheel with lock knob; linear adjustment scale with precision vernier
    • automatic control with pneumatically actuated positioner
    • automatic control with positioner controlled by an electrically actuated monophase servomotor with emergency handwheel
    • running speed adjustable by variable speed motor or variable speed gear-reducer
    • batch impulses generator and pulsemeter to meter a predeterminated liquid dose


    DOXE selection chart

    Doxe metring pumps table