Grundfos DDC series

Grundfos DDC series

  SMART Digital dosing pumps are the next generation of variable speed micro-processor controlled metering pumps.


 SMART Digital dosing pumps are the next generation of variable speed micro-processor controlled metering pumps.

1:3000 or 1:1000 turndown ratio
PVC, PVDF, Polypropylene & 316 SS materials
Modular construction with removable wall mounting bracket, and side or front control positions
Stepper motor driven with universal power supply (1x100-240VAC, 50/60 Hz)
Reliable dosing of fluids that off-gas (sodium hypochlorite, etc.)
NSF approved

Feed rate setting range: (+/-1% repeatable accuracy through entire adjustable range)

DDA 7.5

16     0.0006 to 2 GPH @ 232 PSI

DDA 12

10      0.0031 to 3.1 GPH @ 150 PSI

DDA 17

7        0.0045 to 4.5 GPH @ 100 PSI

DDA 30

4        0.008 to 8 GPH @ 60 PSI

DDC 6

10        0.0015 to 1.5 GPH @ 150 PSI

DDC 9

7          0.0024 to 2.4 GPH @ 100 PSI

DDC 15

4        0.004 to 4.0 GPH @ 60 PSI

DDE 6

10        0.0015 to 1.5 GPH @ 150 PSI

DDE 15

4        0.004 to 4 GPH @ 60 PSI

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 patented sensor technology to measure and verify flow, in addition to pressure monitoring. The AutoFlowAdapt feature on the FCM version can will correct the actual feed rate to match the pump's set point. 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.

Scalable control input signals (up to 1:3000 turndown ration) to meet the widest flow rates in one model.
Slow mode to improve the max viscosity up to 2500 CPS
Profibus ready (field retrofittable)
Three variants allow for different degrees of monitoring & control
DDA AR Automatic or manual control with a relay outputs
DDA FC AR + Flow Control for flow verification
DDA FCM FC + measurement to verify and measure flow. Pump will auto-adapt so actual feed rate matches target feed rate.

DDC

Same DDA intuitive click-wheel operation and a graphic LC display in more than 25 languages.
Slow mode to improve the max viscosity up to 2500 CPS
Direct feed rate setting in GPH or l/hr
Simple calibration mode
DDC A Automatic or manual control
DDC AR A + relay output

DDE

Low cost option for stepper motor driven metering pump.
1:1000 turndown for smooth, continuous dosing and minimized pulsation.
Logarithmic scale on control knob that adjusts the feedrate from 0.1-100 %.
DDE B Basic manual control
DDE P B + pulse control
DDE PR P + relay output

Processes

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

Applications

Drinking water treatment
Waste water treatment
Pulp and paper industry
Textile industry
Cleaning water treatment
Food & Beverage industry, dairies
Cooling tower water treatment
Low-pressure boiler feed water treatment