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Grundfos DDA DDC and DDE
Dosing & Disinfection Pumps

  • Grundfos DDA
  • Grundfos DDA - Performance curves

Grundfos DDA — Grundfos DDC — Grundfos DDE

Intelligent dosing pumps with new drive and adjustment mechanisms represent the ideal solution for increasingly complex dosing. They make life easier for users by keeping processes running precisely, reliably and cost-effectively.
SMART Digital dosing pumps meet these challenges by offering state-of-the-art drive technology, a whole new dimension in user-friendly operation and an intelligent FlowControl system. These properties ensure extremely precise, reliable and cost-effective processes combined with the best possible price-performance ratio.
Three different pump ranges are offered, all featuring powerful, variable-speed stepper motors; a universal power supply; and a full PTFE diaphragm that meets the most demanding requirements for chemical resistance and durability.

Grundfos DDA
The DDA model is the pump for complex and demanding applications where the focus is on maximum process reliability. In addition to an extended capacity range and a turn-down ratio of up to 1:3000, it boasts FlowControl, pressure monitoring, AutoFlowAdapt and integrated flow measurement. The package for industrial applications is rounded off by additional operating modes such as a week dosing timer and new functions such as auto deaeration.

Grundfos DDC
The DDC impresses with features such as simple, intuitive click-wheel operation and a graphic LC display in more than 25 languages. What’s more, all standard modes of operation and inputs/outputs such as analog control or output relay can be integrated into control systems. This pump is suitable for universal use thanks to highlights including the SlowMode (anti-cavitation) function for highly viscous media and the straightforward calibration mode.

Grundfos DDE
The DDE is the cost-effective entry-level model with all the benefits of Digital Dosing such as a maximum turn-down ratio of 1:1000 and smooth, continuous dosing. This one model can replace a whole host of existing models with dosing rates ranging from 0.006 to 6 l/h. The rate is set using a logarithmic scale that runs from 0.1-100 %. The model’s straightforward pulse control, external stop function and empty level signal are ideal for basic OEM applications.

Applications

  • Disinfection
  • pH regulation
  • CIP
  • Dosing of chemicals and biocides
  • Precipitation and flocculation
  • Filtration
  • Reverse osmosis

Benefits

  • FlowControl system prevents unwanted stoppages
  • Integrated flow measurement function makes costly additional measuring equipment unnecessary
  • Modularity – flexible and suitable for any environment or situation
  • Flow Rate: From 0.0025 to 30 L/hGrundfos DDA Pump Performance Curve Chart

Variants

  • Optional E-box enables SMART Digital pumps to be integrated – and even retrofitted – in systems such as complex Profibus networks.