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DME
Product code : 01.17
DME
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- Pulp and paper industry
- Textile industry
- Food and beverage industry
- Industrial process water and waste water treatment
- Drinking water treatment
- Digital Dosing
- Ratio 1:800
- High precision – unique technology
- Dosing of high viscosity media
- Robustness and reliability
Overview
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
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 pump range has all the benefits of the highly acclaimed smaller Digital Dosing range, making accurate dosing easier than ever.
Precise and easy setting
The operator can easily install and set the pump to discharge exactly the quantity of dosing liquid required in the application. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch. The operation mode is easily identified by means of icons.
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 and displacement of even the most difficult liquids.
Unique technology
A unique drive technology and microprocessor control make sure that liquids are dosed precisely and with low pulsation, even when the pump 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 communication
Available with Profibus interface to supply performance data and status information for quality control, preventive maintenance and future reference.
Overload protection
Built-in overload protection monitors the counter-pressure of the pump and protects it against too high pressure loads.
Switch-mode 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 variants
The dosing heads of DME pumps are available in stainless steel, PVDF, and environmentally friendly, cost-efficient polypropylene.
Processes:
Dosing 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
Digital Dosing
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 pump range has all the benefits of the highly acclaimed smaller Digital Dosing range, making accurate dosing easier than ever.
Precise and easy setting
The operator can easily install and set the pump to discharge exactly the quantity of dosing liquid required in the application. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch. The operation mode is easily identified by means of icons.
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 and displacement of even the most difficult liquids.
Unique technology
A unique drive technology and microprocessor control make sure that liquids are dosed precisely and with low pulsation, even when the pump 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 communication
Available with Profibus interface to supply performance data and status information for quality control, preventive maintenance and future reference.
Overload protection
Built-in overload protection monitors the counter-pressure of the pump and protects it against too high pressure loads.
Switch-mode 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 variants
The dosing heads of DME pumps are available in stainless steel, PVDF, and environmentally friendly, cost-efficient polypropylene.
Processes:
Dosing 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
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