DDA - DDC - DDE

Summary

Product Identification

The SMART Digital DDA, DDC, and DDE series are digital dosing pumps.

Type Key Breakdown (Example: DDA 7.5-16 AR-PP/V/C-F-31U2U2F G)

• Type range: DDA, DDC, DDE
• Maximum flow: [l/h] (e.g., 7.5, 12, 17, 30 for DDA; 6, 9, 15 for DDC/DDE)
• Maximum pressure: [bar] (e.g., 16, 10, 7, 4 for DDA; 10, 7, 4 for DDC/DDE)
• Control variant:
  • B: Basic (DDE)
  • P: B with pulse mode (DDE)
  • PR: P with relay output (DDE)
  • A: Standard (DDC)
  • AR: A with alarm relay and analog input (DDA, DDC)
  • FC: AR with FlowControl (DDA)
  • FCM: FC with flow measurement (DDA)
• Dosing head variant: PP (Polypropylene), PVC (Polyvinyl chloride), PV (PVDF), SS (Stainless steel 1.4401)
• Gasket material: E (EPDM), V (FKM), T (PTFE)
• Valve type: 1 (Standard), 2 (Spring-loaded)
• Valve ball material: C (Ceramic), SS (Stainless steel 1.4401)
• Control cube position: F (Front-mounted, changeable to left/right)
• Supply voltage:
  • 3: 1 x 100-240 V, 50/60 Hz
  • I: 24-48 VDC (DDC, planned for 2013)
  • X: No control cube (DDE)
• Connection, suction/discharge:
  • U2U2: Hose 4/6 mm, 6/9 mm, 6/12 mm, 9/12 mm
  • U7U7: Hose 0.17" x 1/4"; 1/4" x 3/8"; 3/8" x 1/2"
  • AA: Threaded, Rp 1/4", female (SS)
  • VV: Threaded, NPT 1/4", female (SS)
  • XX: No connection
• Installation set: I001, I002, I003, I004 (specific hose sizes and pressure ratings)
• Special variant: C3 (Inspection Certificate 3.1 EN 10204)
• Design: G (Grundfos)
• Mains plug: F (EU), B (USA, Canada), G (UK), I (Australia, New Zealand, Taiwan), E (Switzerland), J (Japan), L (Argentina), X (No plug, only 24-48 VDC)

General Data

The SMART Digital generation DDA, DDC, and DDE pumps feature a powerful variable-speed stepper motor.

Performance Range

• DDA models:
  • DDA 7.5-16: 7.5 l/h at 16 bar
  • DDA 12-10: 12 l/h at 10 bar
  • DDA 17-7: 17 l/h at 7 bar
  • DDA 30-4: 30 l/h at 4 bar
• DDC models:
  • DDC 15-4: 15 l/h at 4 bar
  • DDC 9-7: 9 l/h at 7 bar
  • DDC 6-10: 6 l/h at 10 bar
• DDE models:
  • DDE 15-4: 15 l/h at 4 bar
  • DDE 6-10: 6 l/h at 10 bar

Key Features

• Flexible Installation: Click-stop mounting plate allows three different positions without additional accessories.
• Modular Control (DDA, DDC): Control cube can be lifted and turned into three positions (front, left, right).
• Wide Turn-down Ratio: Up to 1:3000.
• User Interface: Click wheel (turn-and-push knob) and graphical LC display with plain-text menu in over 20 languages. Display backlight changes color (white, green, yellow, red) to indicate pump status.
• Process Reliability: Intelligent drive and microprocessor control ensure precise, low-pulsation dosing. Features include FlowControl system (maintenance-free, detects malfunctions like air bubbles), and AutoFlowAdapt function (automatically adjusts pump to process conditions, e.g., varying backpressure).
• Cost Savings: High dosing accuracy, full-PTFE diaphragm for universal chemical resistance and longer maintenance intervals, reduced energy consumption.

Application-Oriented Type Ranges

• DDA (High-end): Extended flow and pressure ranges with sensor-based FlowControl and measurement functions for challenging industrial applications such as process water, food and beverage, ultrafiltration and reverse osmosis, pulp and paper, boiler feed water, and CIP.
• DDC (User-friendly): Standard inputs and outputs for common applications including drinking water, waste water, swimming pool water, cooling tower, and chemical industry.
• DDE (Low-budget): Basic functions, manual operation or control via PLC for OEM applications like car wash and irrigation.

Functions

Operation Modes

• Manual Control: Constant dosing set in l/h, ml/h, or gph.
  • DDA 7.5-16: 0.0025 to 7.5 l/h
  • DDA 12-10: 0.0120 to 12.0 l/h
  • DDA 17-7: 0.0170 to 17.0 l/h
  • DDA 30-4: 0.0300 to 30.0 l/h
  • DDC 6-10: 0.0060 to 6.0 l/h
  • DDC 9-7: 0.0090 to 9.0 l/h
  • DDC 15-4: 0.0150 to 15.0 l/h
  • DDE 6-10: 0.0060 to 6.0 l/h
  • DDE 15-4: 0.0150 to 15.0 l/h
  • Note: Max flow is reduced when SlowMode is enabled.
• Pulse Control: Dosing proportional to an external potential-free pulse signal.
  • DDA/DDC (ml/pulse):
    • DDA 7.5-16: 0.0015 - 14.8 ml/pulse
    • DDA 12-10: 0.0029 - 29.0 ml/pulse
    • DDA 17-7: 0.0031 - 31.0 ml/pulse
    • DDA 30-4: 0.0062 - 62.0 ml/pulse
    • DDC 6-10: 0.0016 - 16.2 ml/pulse
    • DDC 9-7: 0.0017 - 16.8 ml/pulse
    • DDC 15-4: 0.0032 - 31.6 ml/pulse
  • DDE-PR, DDE-P (percentage of stroke volume):
    • DDE 6-10: 0.0008 - 0.81 ml/pulse
    • DDE 15-4: 0.0016 - 1.58 ml/pulse
• Analog 0/4-20 mA Control (DDA, DDC-AR): Dosing capacity proportional to input mA signal (0% at ≤4.1 mA or ≤0.1 mA, 100% at ≥19.8 mA). Analog scaling function allows individual curve drawing between two points.
• Pulse-based Batch Control (DDA): Set quantity dosed in batches within a set dosing time (t1) upon receiving an external pulse.
  • DDA 7.5-16: 0.74 ml/batch to 999 l/batch (resolution 0.09 ml)
  • DDA 12-10: 1.45 ml/batch to 999 l/batch (resolution 0.18 ml)
  • DDA 17-7: 1.55 ml/batch to 999 l/batch (resolution 0.19 ml)
  • DDA 30-4: 3.10 ml/batch to 999 l/batch (resolution 0.39 ml)
• Dosing Timer Cycle (DDA): Set batch volume repeatedly dosed in a set cycle time (t3) after a start delay (t2).
• Dosing Timer Week (DDA): Batch dosing based on a weekly period with up to 16 procedures, each with batch volume, dosing time, start time, and weekdays.

Advanced Functions

• SlowMode (DDA, DDC): Extends and smooths the suction stroke for high-viscosity or degassing liquids, long suction lines, or high suction lift. Motor speed during suction can be reduced to approximately 50% or 25% of normal.
• Auto Deaeration (DDA): Software-controlled diaphragm movements at regular intervals to displace air bubbles and prevent air-locking when dosing degassing liquids.
• Calibration (DDA, DDC): Allows calibration for the actual installation to ensure displayed values are correct.
• External Stop (DDA, DDC, DDE-PR, DDE-P): Stops the pump remotely via an external contact signal.
• Counters (DDA, DDC): Displays resettable (Volume) and non-resettable (Operating hours, Motor runtime, Strokes, Power on/off) counters.
• Service Display (DDA, DDC): Indicates when wear parts require service, displaying a service kit product number. Service is recommended after 8,000 motor runtime hours or 24 months (DDA).
• Level Control: Connects to a dual level control unit for low-level (warning, pump continues) and empty tank (alarm, pump stops) signals.
• Relay Output (DDA, DDC-AR, DDE-PR): Two built-in relays for external signals (Alarm, Warning, Stroke signal, Pump dosing, Pulse input, Bus control, Timer cycle, Timer week).
• Analog Output (DDA): 0/4-20 mA output signal for actual flow, backpressure, or mapped to analog input.
• Bus Communication (DDA): Built-in GENIbus module. Can be integrated into a Profibus DP network with an E-Box 150 module.
• Key Lock (DDA, DDC): 4-digit PIN-code protection for settings or settings + keys.
• Mechanical Lock (DDE): Locking screw to fix the capacity adjustment knob.
• Units (DDA, DDC): Selectable metric (litre/millilitre/bar) or US (US gallons/psi) units.
• FlowControl (DDA-FC/FCM): Monitors the dosing process, detecting malfunctions like overpressure, discharge line burst, air bubbles, cavitation, and valve leakage. Requires a minimum backpressure of 2 bar.
• Pressure Monitoring (DDA-FC/FCM): Measures system pressure. Stops dosing if pressure exceeds a set maximum or drops below a fixed minimum (< 2 bar).
  • Adjustable Max. Pressure: 3 to 17 bar (DDA 7.5-16), 3 to 11 bar (DDA 12-10), 3 to 8 bar (DDA 17-7), 3 to 5 bar (DDA 30-4).
• Flow Measurement (DDA-FCM): Precisely measures and displays the actual dosing flow.
• AutoFlowAdapt (DDA-FCM): Compensates for environmental changes (e.g., air bubbles, fluctuating system pressure) to maintain the target flow rate by automatically adapting motor speed.

Electrical

DDA

• Voltage: 100-240 V, 50/60 Hz
• Length of mains cable: 1.5 m
• Max. inrush current (2 ms): 8 A at 100 V, 25 A at 230 V
• Max. power consumption P1: 24 W
• Enclosure class: IP 65, Nema 4X
• Electrical safety class: II
• Signal input (low-level/empty tank/pulse/external stop): Max. load 12 V, 5 mA; Min. pulse length 5 ms; Max. pulse frequency 100 Hz; Impedance at analog 0/4-20 mA input 15 Ω; Max. resistance in level/pulse circuit 1000 Ω.
• Signal output (relay/analog): Max. ohmic load on relay output 0.5 A; Max. voltage on relay/analog output 30 VDC/30 VAC; Impedance at 0/4-20 mA analog output 500 Ω.

DDC

• Voltage AC: 100-240 V, 50/60 Hz
• Voltage DC (option): 24-48 VDC
• Length of mains cable: 1.5 m
• Max. inrush current (2 ms): 8 A at 100 V, 25 A at 230 V
• Max. power consumption P1: 22 W
• Enclosure class: IP 65, Nema 4X
• Electrical safety class: II
• Signal input (low-level/empty tank/pulse/external stop): Max. load 12 V, 5 mA; Min. pulse length 5 ms; Max. pulse frequency 100 Hz; Impedance at analog 0/4-20 mA input 15 Ω; Max. resistance in level/pulse circuit 1000 Ω.
• Signal output (relay): Max. ohmic load on relay output 0.5 A; Max. voltage on relay output 30 VDC/30 VAC.

Mechanical / Hydraulic

Construction Materials

• Dosing head: Polypropylene (PP), Polyvinyl chloride (PVC), Polyvinylidene fluoride (PVDF), Stainless steel 1.4435
• Valve ball: Ceramic Al₂O₃ 99.5%, Stainless steel 1.4401
• Diaphragm: Full PTFE
• Safety diaphragm: EPDM
• Deaeration valve O-ring: EPDM/FKM
• Discharge valve O-ring: EPDM, FKM, PTFE
• Flange, Gear box, Housing, Control cube, Click wheel, Mounting plate: PPO/PS 20% gf
• Connecting rod: PA 6.6 30% gf
• Display cover: PC
• Energy recovery spring (DDA only): EN 10270-2/VD SiCr

Operating Limits (DDA)

• Turndown ratio: 3000 (7.5-16), 1000 (12-10, 17-7, 30-4)
• Max. dosing capacity: 7.5 l/h (2.0 gph) to 30.0 l/h (8.0 gph)
• Max. dosing capacity with SlowMode 50%: 3.75 l/h (1.00 gph) to 15.00 l/h (4.00 gph)
• Max. dosing capacity with SlowMode 25%: 1.88 l/h (0.50 gph) to 7.50 l/h (2.00 gph)
• Min. dosing capacity: 0.0025 l/h (0.0007 gph) to 0.0300 l/h (0.0080 gph)
• Max. operating pressure: 16 bar (230 psi) to 4 bar (60 psi)
• Max. stroke frequency: 190 to 205 strokes/min (varies by model)
• Stroke volume: 0.74 ml to 3.10 ml (varies by model)
• Accuracy of repeatability: ± 1%
• Max. suction lift during operation: 6 m
• Max. suction lift when priming with wet valves: 2 m (7.5-16, 12-10), 3 m (17-7), 2 m (30-4)
• Min. pressure difference between suction and discharge side: 1 bar (FC and FCM: 2 bar)
• Max. inlet pressure, suction side: 2 bar
• Max. viscosity (SlowMode 25%, spring-loaded valves): 1500 to 2500 mPas (= cP)
• Max. viscosity (SlowMode 50%, spring-loaded valves): 600 to 1800 mPas (= cP)
• Max. viscosity (without SlowMode, spring-loaded valves): 200 to 600 mPas (= cP)
• Max. viscosity (without spring-loaded valves): 50 to 300 mPas (= cP)
• Min. internal hose/pipe diameter suction/discharge side: 4 mm to 9 mm (standard), 9 mm (high viscosity)
• Min./Max. liquid temperature: -10 °C / 45 °C
• Min./Max. ambient temperature: 0 °C / 45 °C
• Diaphragm diameter: 44 mm to 74 mm
• Max. sound pressure level: 60 dB(A)
• Approvals: CE, CB, CSA-US, NSF61, GOST, C-Tick

Operating Limits (DDC)

• Turndown ratio: 1000
• Max. dosing capacity: 6.0 l/h (1.5 gph) to 15.0 l/h (4.0 gph)
• Max. dosing capacity with SlowMode 50%: 3.00 l/h (0.75 gph) to 7.50 l/h (2.00 gph)
• Max. dosing capacity with SlowMode 25%: 1.50 l/h (0.38 gph) to 3.75 l/h (1.00 gph)
• Min. dosing capacity: 0.0060 l/h (0.0015 gph) to 0.0150 l/h (0.0040 gph)
• Max. operating pressure: 10 bar (150 psi) to 4 bar (60 psi)
• Max. stroke frequency: 140 to 200 strokes/min (varies by model)
• Stroke volume: 0.81 ml to 1.58 ml (varies by model)
• Accuracy of repeatability: ± 1%
• Max. suction lift during operation: 6 m
• Max. suction lift when priming with wet valves: 2 m (6-10, 9-7), 3 m (15-4)
• Min. pressure difference between suction and discharge side: 1 bar
• Max. inlet pressure, suction side: 2 bar
• Max. viscosity (SlowMode 25%, spring-loaded valves): 2000 to 2500 mPas (= cP)
• Max. viscosity (SlowMode 50%, spring-loaded valves): 1300 to 1800 mPas (= cP)
• Max. viscosity (without SlowMode, spring-loaded valves): 500 to 600 mPas (= cP)
• Max. viscosity (without spring-loaded valves): 50 to 300 mPas (= cP)
• Min. internal hose/pipe diameter suction/discharge side: 4 mm to 6 mm (standard), 9 mm (high viscosity)
• Min./Max. liquid temperature: -10 °C / 45 °C
• Min./Max. ambient temperature: 0 °C / 45 °C
• Diaphragm diameter: 44 mm to 50 mm

Dimensions

• DDA 7.5-16, DDC 6-10, DDC 9-7, DDE 6-10: A=280 mm, A1=251 mm, B=196 mm, C=46.5 mm, D=24 mm
• DDA 12-10, DDA 17-7, DDC 15-4, DDE 15-4: A=280 mm, A1=251 mm, B=200.5 mm, C=39.5 mm, D=24 mm
• DDA 30-4: A=295 mm, A1=267 mm, B=204.5 mm, C=35.5 mm, D=38.5 mm
• Note: These dimensions are for pumps with front-fitted or side-fitted control cube (DDA/DDC) or front-fitted control elements (DDE-PR).

Weight

• DDA (PVC, PP, PVDF): 2.4 kg (7.5-16, 12-10), 2.6 kg (17-7, 30-4)
• DDA (stainless steel): 3.2 kg (7.5-16, 12-10), 4.0 kg (17-7, 30-4)
• DDC (PVC, PP, PVDF): 2.4 kg (all models)
• DDC (stainless steel): 3.2 kg (all models)
• DDE (PVC, PP, PVDF): 2.4 kg (all models)
• DDE (stainless steel): 3.2 kg (all models)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used for the project.

Official datasheet (PDF)

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