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Grundfos - Digital Dosing 

Grundfos’s DMX, DDI, DME/DMS, and DMH series are high-performance, general-purpose metering pumps. The DME and DDI models are high-precision digital diaphragm dosing pumps that have an easy-to-use design, providing significant dosing quantities up to 940 l/h. With the DME pumps, you can select the slow mode to work with high viscosity liquids. The DDI model offers universal chemical resistance and an optional flow control sensor. The DMX is a reliable, low-maintenance mechanical diaphragm dosing pump with a wide choice of materials and dosing head sizes that handle various flow rates. Grundfos DMH hydraulic piston diaphragm dosing pumps have a robust design for reliable high-pressure applications.

grundfos-digital-dosing-ddi

Features

  • Internal stroke-speed and frequency control with powerful Permanent Magnet Synchronous (PMS) motor
  • Manual, pulse, and 0/4-20 mA control
  • Batch, timer cycle, timer week control
  • FlowControl with selective fault diagnosis, pressure monitoring
  • Integrated flow measurement and AutoFlowAdapt
  • 0/4-20 mA and 2 relay outputs
  • Auto deaeration
  • Power supply 100-240 V, 50/60 Hz
  • Fieldbus communication with CIM, CIU
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Applications

  • Drinking-water treatment
  • Wastewater treatment
  • Boiler water treatment
  • Cooling water treatment
  • Process water treatment
  • Chemical industry
  • Ultrafiltration process and reverse osmosis
  • Food and beverage industry
  • Pulp and paper industry
grundfos-digital-dosing-dme-dms

Features

  • Always operates at full stroke length for optimum accuracy, priming and suction
  • Smooth, continuous dosing
  • Even and constant dosing to ensure the best mixing ratio at the injection point
  • Significant reduction of pressure surges
  • Instillation is less affected by long suction and discharge lines
  • Easier dosing of highly viscous and gas-containing liquids
  • Capacity ranges from 1:1000 for pump sizes
  • Adjustable slow mode for dosing high velocity liquids
  • High precision and unique technology
  • Robustness and reliability
  • Fieldbus communication available
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Applications

  • Pulp and paper industry
  • Textile industry
  • Food and beverage industry
  • Industrial process water
  • Wastewater treatment
  • Drinking water treatment
grundfos-digital-dosing-dmh

Features

  • Designed for heavy-duty operation
  • Stoke-length adjustment
  • Long life due to piston diaphragm technology
  • Full PTFE diaphragm
  • Optional frequency converter
  • Available with API 675 and ATEX approval
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Applications

  • Municipal and industrial water treatment
  • Wastewater treatment
  • Chemical industry
  • Boiler feed
  • Cooling towers, power plants
  • Petroleum industry
  • Filtration systems
  • Oil refinery industry
  • pH control
  • Demineralizers
  • Pulp, paper & textile industry
  • Food & beverage
grundfos-digital-dosing-dmx

Features

  • Robust design
  • Stoke-length adjustment
  • Optional pulse control
  • Optional analog control
  • Frequency converter available
  • Smooth and low-pulsating dosing
  • Compact design
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Applications

  • Drinking-water treatment
  • Wastewater treatment
  • Pulp and paper industry
  • Textile industry
  • Cleaning water treatment
  • Food & beverage industry
  • Cooling tower water treatment
  • Low-pressure boiler feed water treatment