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Grundfos pumps – Digital Dosing pumps

Overview for Grundfos pumps – Dosing pumps

Grundfos DME Digital Dosing pumps combine perfect precision with user-friendliness, covering large dosing quantities in the range from 60 l/h to 940 l/h with few variants.

Digital Dosing Pumps

The use of stepper motor/EC drives optimizes control of the stroke speed and makes it extremely accurate. The duration of each pressure stroke varies according to the flow setting. The suction stroke time always remains constant but can be lengthened using the anti-cavitation function and thus adapted to the relevant needs. This way suction always takes place with the full stroke volume. This results in continuous dosing and lower pulsation in the dosing system – important factors in ensuring smooth pumping of outgassing media and in installations requiring longer suction lines.

The DME pumps range has all the benefits of the highly acclaimed smaller Digital Dosing range, making accurate dosing easier than ever.

Precise Pumps and easy setting Pumps

The operator can easily install and set the pumps to discharge exactly the quantity of dosing liquid required in the application. In the display, the setting of the pumps is read out directly in ml/h or l/h, pulse or batch. The operation mode is easily identified by means of icons.

Pumps Turndown ratio 1:800

With a turndown ratio ten times better than that of traditional equipment, the DME Digital Dosing pumps offer maximum flexibility and accuracy.

Turndown of the suction stroke to 75 %, 50 % or 25 % of the maximum speed ensures optimal priming pumps and displacement of even the most difficult liquids.

Unique technology Pumps

A unique drive technology and microprocessor control make sure that liquids are dosed precisely and with low pulsation, even when the pumps is operating with high viscosity or degassing liquids. Instead of the conventional stroke length adjustment, the capacity of the DME is regulated by automatic adjustment of the motor speed during the discharge stroke, and by fixed suction stroke speed. This guarantees optimal and uniform mixing.

Fieldbus Pumps communication

Available with Profibus interface to supply performance data and status information for quality control, preventive maintenance and future reference.

Pumps Overload protection

Built-in overload protection monitors the counter-pressure of the pumps and protects it against too high pressure loads.

Switch-mode pumps power supply

The switch-mode power supply makes sure that Grundfos DME Digital Dosing pumps can be used worldwide within the 100-240 VAC – 50/60 Hz range.

Several material variant Pumps

The dosing heads of DME pumps are available in stainless steel, PVDF, and environmentally friendly, cost-efficient polypropylene.

Pumps Processes:

Dosing pumps of biocides and chemicals, belt lubricant for conveyor equipment diverse range of acids, lyes, flocculation and coagulation agents, cationic and anionic polymers with very different viscosities, precipitating agents and disinfectants, CIP applications

Applications Pumps

  • Pulp and paper industry
  • Textile industry
  • Food and beverage industry
  • Industrial process water and waste water treatment
  • Drinking water treatment

 

Features and Benfits Pumps

  • Digital Dosing Pumps
  • Ratio 1:800
  • High precision – unique technology
  • Dosing of high viscosity media
  • Robustness and reliability

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