GRUNDFOS SMART DDA PUMPS

A new era of dosing technology

Smart DDA Pump
Smart DDA Pump

Chemistry in water treatment, water and wastewater recycling and disinfection has experienced a huge development during the last years, and this poses a challenge for today's dosing technology. More and more complex applications require intelligent dosing pumps with new drives or new control and adjustment mechanisms to simplify the operators' job.

SMART Digital dosing pumps meet these challenges. They offer state-of-the-art drive technology, new dimensions of user-comfort and intelligent flow control. These features ensure extremely reliable, cost-effective and high-precision processes at an optimum price/performance ratio.

Designed to save costs and to protect the environment

In general, the investment for a dosing pump installation is low compared to its life cycle costs. Low operation costs and longer maintenance intervals combined with an extremely high dosing accuracy make SMART Digital the perfect partner for:

  • Saving chemicals with high dosing accuracy and Flow Control
  • Saving energy with latest drive technology and improved electronics
  • Saving maintenance costs thanks to the universal chemical resistance of the full-PTFE diaphragm and Digital Dosing™
  • Saving natural resources with new composite materials and sustainable production processes

Processes and application areas

Smart DDE Pump
Smart DDE Pump
[click for more info]

SMART Digital can be used in a wide range of processes…

  • Disinfection
  • pH-adjustment
  • Chemical dosing
  • Cleaning-in-place
  • Biocides
  • Coagulation
  • Precipitation / Flocculation
  • Filtration
  • Reverse osmosis

…within a vast field of application areas:

  • Ground water
  • Surface water
  • Drinking water
  • Process water
  • Recreational water
  • Recycle & reuse

Simplicity

Precise and easy setup. Intuitive user interface. Simple handling and perfect overview and control even from the distance – it’s always easy to handle our SMART Digital!

  • Intuitive and self-explanatory menu
  • Click wheel (turn-and-push knob)
  • Big graphical LCD with four colour "traffic light" concept
  • More than 25 languages

Modularity

Requirements change, demands grow, and capacities vary – SMART Digital fits into every environment and situation!

  • Turn-down ratio up to 1:3000 with a dosing spectrum of 0.0025 – 30 l per hour
  • Click-stop mounting plate for quick and variable installation
  • Control cube can be positioned in three ways (left, right, front)
  • Using switch-mode power supply, the SMART Digital model DDA is independent from regional voltages

Flow Intelligence

Full control under all conditions. Highest process reliability – at any time with SMART Digital!

  • FlowControl with selective fault diagnosis
  • Pressure monitoring
  • Flow measurement
  • AutoFlowAdapt

Dimensions

Smart Pump Dimensions
Smart Pump Dimensions

DDA 7.5-1612-1017-730-4
A (mm) 280 295
A1 (mm) 251 267
B (mm) 196 200.5 204.5
C (mm) 46.5 39.5 35.5
D (mm) 24 38.5

Technical Specifications

Mechanical Data 7.5-1612-1017-730-4
Turndown Ratio 3000 1000
Max. Dosing Flow (l/h) 7.5 12.0 17.0 30.0
Min. Dosing Flow (l/h) 0.0025 0.0120 0.0170 0.0300
Max. Operating Pressure (bar) 16 10 7 4
Max. Stroke Frequency (min-1) 190 155 205 180
Repeatability (%) ±1
Max. Suction Lift (m) 6
Max. Suction Lift when Priming with Wet Valves (m) 2 3 2
Max. Viscosity (without Spring-loaded Valves) (mPa·s) 50 300 150
Max. Viscosity (with Spring-loaded Valves) (mPa·s) 600 500 200
Max. Viscosity (SlowMode, Spring-loaded Valves) (mPa·s) 2500 2000 1500
Max. Media Temperature (°C) 45
Min. Media Temperature (°C) -10
Max. Ambient Temperature (°C) 45
Min. Ambient Temperature (°C) 0
Max. Storage Temperature (°C) 70
Min. Storage Temperature (°C) -20
Electrical Data 7.5-1612-1017-730-4
Voltage (V) 100-240V, 50-60Hz
Mains Cable Length (m) 1.5
Inrush Current @ 100V (A) 8
Inrush Current @ 230V (A) 25
Max. Power Consumption (W) 18 (24 with E-Box)
Enclosure Class IP65, Nema 4X
Electrical Safety Class II
Signal Input 7.5-1612-1017-730-4
Max. Load for Level Input 12V, 5mA
Max. Load for Pulse Input 12V, 5mA
Max. Load for External Stop 12V, 5mA
Min. Pulse Length (ms) 5
Max. Pulse Frequency (Hz) 100
Analogue Input Impedance (Ω) 15
Max. Resistance in Level Circuit (Ω) 1000
Max. Resistance in Pulse Circuit (Ω) 1000
Signal Output 7.5-1612-1017-730-4
Max. Load on Relay Output (A) 0.5
Max. Voltage on Relay Output (V) 30
Analogue Output Impedance (Ω) 500
Weight/Size 7.5-1612-1017-730-4
Weight (PVC, PP, PVDF) (kg) 2.4 2.6
Weight (Stainless Steel) (kg) 3.2 4.0
Diaphragm Diameter (mm) 44 50 74
Sound 7.5-1612-1017-730-4
Max. Sound Pressure Level (dBA) 60
Approvals 7.5-1612-1017-730-4
CE; CSA-US; NSF61; GHOST; C-Tick
CE


Page reviewed: 6th June 2014