Grundfos DDA 30-4 AR-PV/T/C-F-31U2U2IG Digital Dosing Pump



Grundfos DDA 30-4 AR-PV/T/C-F-31U2U2IG Digital Dosing Pump

Suitable for.

  • Controls & Digital Groundwater Management
  • Drip/Micro Spray
  • Agricultural Groundwater
  • Livestock watering with solar solutions
  • Pivot
  • Agriculture solar solutions
  • Solar boosting and water supply solutions
  • Agricultural Surface Water
  • Commercial water disinfection
  • Drinking water treatment
  • Desalination
  • Industrial heating
  • Wash and clean
  • Industrial water supply
  • Industrial wastewater
  • Solar Controls & Digital Water Management
  • Solar Water Treatment Fertigation & Dosing
  • Community water supply
  • Wastewater treatment

SMART Digital diaphragm dosing pump with internal stepper motor drive. Economic Digital Dosing even for basic dosing applications (Digital Dosing Essential).


The SMART Digital DDA is a compact positive displacement, diaphragm dosing pump with variable-speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high-viscosity or degassing liquids. The duration of each discharge stroke varies according to the capacity set, resulting in optimum smooth and continuous discharge flow. The click-stop mounting plate allows installation in three different positions without using any additional accessories. The control cube can be turned easily into front, left or right position. The click wheel and the multi-coloured backlit graphical, plain-text LC display make commissioning and operation intuitive. The control elements are protected by a transparent cover.

The dosing head is composed of:

  • Long lifetime and universal chemical resistant Full-PTFE diaphragm.
  • Double ball valves for the highest dosing accuracy.
  • Deaeration valve for easy start-up.

Operation modes:

  • Manual dosing in ml/h, I/h or gph.
  • Pulse control in ml/pulse (incl. memory function).
  • Analog control 0/4-20 mA (scalable).
  • Pulse-based batch function in ml, l or gal.
  • Timer-based batch function (Dosing timer, cycle or week).
  • Fieldbus control (Genibus prepared for ProfibusDP E-box).

Other features:

  • Auto deaeration during pump standby to avoid breakdowns due to air-locking.
  • Two SlowMode steps (anti-cavitation), 50 % (maximum flow= 6 l/h) and 25 % (maximum flow= 3 l/h), e.g. for high-viscosity or degassing liquids.
  • Service information display to show when service and which wear-part order number is required.
  • Two-step key lock function to protect the pump against unauthorised access.
  • Additional display function to provide further information, e.g. the actual mA input signal.
  • Counter for total dosed volume (resettable), operating hours, etc.
  • Save and load customised settings as well as reload of factory settings.

Signal inputs/outputs:

  • Input for pulse, analog 0/4-20mA, external stop.
  • Input for low-level and empty-tank signal.
  • Two potential-free output relays for max. 30 V AC/DC (configurable, e.g. alarm, stroke signal, pump dosing, timer etc.)
  • Output analog 0/4-20mA.
  • Fieldbus communication interface (GeniBus, also for additional Profibus DP E-box to retrofit).



Type key: DDA 7.5-16 AR-PV/T/C-F-31U2U2I
Max. Flow: 30 l/h
Max. flow in slow mode 50%: 15 l/h
Max. flow in slow mode 25%:
Min flow:
30.0 ml/h
Turn-down ratio:
Valve type:
Maximum viscosity at 100 %: 150 mPas
Maximum viscosity in slow mode 50 %: 600 mPas
Maximum viscosity in slow mode 25 %: 1500 mPas
Accuracy of repeatability: 1 %



Dosing head:
PVDF (Polyvinylidene fluoride)
Valve ball: Ceramic




Range of ambient temperature: 0 .. 45 °C
Maximum operating pressure: 4 bar
Installation set: NO
Installation type: No installation set
Pump inlet: 4/6, 6/9, 6/12, 9/12 mm
Pump outlet:
4/6, 6/9, 6/12, 9/12 mm
Max. Suction lift during operation: 6 m
Max. Suction lift during priming:



Pumped liquid: Water
Liquid temperature range:
-10 .. 45 °C
Selected liquid temperature:
20 °C
998.2 kg/m³



P1 max: 24W
Mains frequency:
50 / 60 Hz
Rated voltage:
1 x 100-240 V
Enclosure class (IEC 34-5):
IP65 / NEMA 4X
Length of cable:
1.5 m
Type of cable plug:
Australia, New Zealand, Taiwan
Inrush current: 25A at 230V for 2ms



Grundfos DDA 30-4 AR-PV/T/C-F-31U2U2IG Digital Dosing Pump Grundfos DDA 30-4 AR-PV/T/C-F-31U2U2IG Digital Dosing Pump Brochure