Grundfos SMART Digital S Dosing Pumps – DDA, DDC & DDE Series
The Grundfos SMART Digital S generation represents the pinnacle of digital dosing technology, combining powerful variable-speed stepper motor drive with intelligent microprocessor control. The DDA, DDC, and DDE series deliver precise chemical dosing from 0.0025 to 30 l/h, replacing traditional stroke length and frequency adjustment technologies with state-of-the-art digital precision for water treatment, industrial processes, and chemical handling applications.
As an authorized Grundfos Water Pump Dealer in Dubai, we supply the complete SMART Digital S range with genuine warranty and technical support across the UAE.
Technical Specifications
| Parameter | Specification |
|---|---|
| Flow Range | 0.0025 – 30 l/h |
| Maximum Pressure | Up to 16 bar |
| Turn-Down Ratio | Up to 1:3000 |
| Supply Voltage | 100-240 V; 50/60 Hz |
| Drive Technology | Variable-speed stepper motor |
| Display | Graphical LCD with colour backlight |
| Languages | More than 25 languages |
| Flow Display Units | ml/h, l/h, or gph |
Model Range & Performance
| Model | Max Flow (l/h) | Max Pressure (bar) | Best For |
|---|---|---|---|
| DDA 7.5-16 | 7.5 | 16 | High pressure, low flow |
| DDA 12-10 | 12 | 10 | Medium flow and pressure |
| DDA 17-7 | 17 | 7 | Higher flow, moderate pressure |
| DDA 30-4 | 30 | 4 | Maximum flow capacity |
| DDC 6-10 | 6 | 10 | Compact, medium pressure |
| DDC 9-7 | 9 | 7 | Balanced performance |
| DDC 15-4 | 15 | 4 | Higher flow, lower pressure |
| DDE 6-10 | 6 | 10 | Basic digital dosing |
| DDE 15-4 | 15 | 4 | Economy high-flow option |
Control Variants & Features Comparison
| Feature | DDA FCM | DDA FC | DDA AR | DDC AR | DDC A | DDE PR | DDE P | DDE B |
|---|---|---|---|---|---|---|---|---|
| Operation Modes | ||||||||
| Manual speed control | ● | ● | ● | ● | ● | ● | ● | ● |
| Pulse control in ml/pulse | ● | ● | ● | ● | ● | |||
| Pulse control (1:n) | ● | ● | ||||||
| Analog control 0/4-20 mA | ● | ● | ● | ● | ● | |||
| Batch control (pulse-based) | ● | ● | ● | |||||
| Dosing timer cycle | ● | ● | ● | |||||
| Dosing timer week | ● | ● | ● | |||||
| Fieldbus control | ● | ● | ● | |||||
| Functions | ||||||||
| Auto deaeration during standby | ● | ● | ● | |||||
| FlowControl with fault diagnosis | ● | ● | ||||||
| Pressure monitoring (min/max) | ● | ● | ||||||
| Flow measurement | ● | |||||||
| AutoFlowAdapt | ● | |||||||
| SlowMode (anti-cavitation) | ● | ● | ● | ● | ● | |||
| Output relay (2 relays) | ● | ● | ● | ● | ● |
Material Variants
| Component | Available Materials |
|---|---|
| Dosing Head | PP, PVC, PVDF, Stainless Steel 1.4401 |
| Gaskets | EPDM, FKM, PTFE |
| Valve Ball | Ceramics, Stainless Steel 1.4401 |
| Valve Types | Standard, Spring-loaded |
| Diaphragm | Full-PTFE (universal chemical resistance) |
Connection Options
Union Nut G 5/8″ with Hose Connections:
- 4/6 mm, 6/9 mm, 6/12 mm, 9/12 mm (metric)
- 0.17″ x 1/4″, 1/4″ x 3/8″, 3/8″ x 1/2″ (imperial)
Union Nut G 5/8″ with Threaded Connections:
- Rp 1/4″ internal thread
- 1/4″ NPT internal thread
Installation Sets
| Hose Size | Flow Capacity | Max Pressure |
|---|---|---|
| 4/6 mm | Up to 7.5 l/h | 13 bar |
| 9/12 mm | Up to 60 l/h | 9 bar |
| 0.17″ x 1/4″ | Up to 7.5 l/h | 13 bar |
| 3/8″ x 1/2″ | Up to 60 l/h | 10 bar |
Key Features & Benefits
Variable-Speed Stepper Motor Technology
The powerful variable-speed stepper motor drive replaces outdated stroke length and frequency adjustment methods used in synchronous motor or solenoid-driven pumps. This advanced technology delivers superior dosing accuracy with smooth, low-pulsation chemical delivery.
Exceptional Turn-Down Ratio
With a turn-down ratio of up to 1:3000, SMART Digital S pumps handle an enormous flow range without changing pump heads or accessories, providing unmatched flexibility for varying process demands.
FlowControl System
The maintenance-free FlowControl system provides integrated flow measurement with selective fault diagnosis. Malfunctions are detected immediately and displayed in the alarm menu, enabling rapid troubleshooting and minimizing process downtime.
AutoFlowAdapt Function
Available on DDA FCM models, AutoFlowAdapt automatically adjusts pump operation according to changing process conditions such as varying backpressure. This intelligent adaptation ensures consistent dosing accuracy regardless of system fluctuations.
Integrated Flow Measurement
The built-in flow measurement capability eliminates the need for additional external monitoring and control equipment, reducing system complexity and installation costs.
SlowMode Anti-Cavitation
The SlowMode function prevents cavitation when dosing high-viscosity or degassing liquids, ensuring precise delivery even with challenging chemical properties.
Intuitive Operation & Control
Click Wheel Interface
The ergonomic click wheel combined with a graphical LCD display featuring plain-text menus in more than 25 languages makes commissioning and daily operation intuitive for operators worldwide.
Colour-Coded Status Display
The LCD backlight changes colour to indicate pump status, allowing operators to monitor pump condition from a distance without approaching the unit.
Direct Flow Readout
Pump settings are displayed directly on screen with flow shown in ml/h, l/h, or gph—operators see exactly what the pump is delivering in real time.
Multiple Operation Modes
Depending on model variant, operation modes include:
- Manual speed control
- Pulse control (ml/pulse or 1:n ratio)
- Analog control (0/4-20 mA)
- Batch control (pulse-based)
- Dosing timer (cycle or weekly programming)
- Fieldbus control for system integration
Flexible Installation
Click-Stop Mounting Plate
The included click-stop mounting plate enables three different mounting positions without additional accessories. Pump installation and exchange is performed quickly by simply clicking the pump in and out of the mounting plate.
Rotating Control Cube
On DDA and DDC models, the control cube rotates into three different positions, accommodating various installation orientations and operator viewing angles.
Universal Voltage Compatibility
The wide supply voltage range (100-240 V; 50/60 Hz) ensures compatibility with electrical systems worldwide, simplifying specification and reducing inventory requirements.
Process Reliability
Intelligent Drive Control
The combination of intelligent drive technology and microprocessor control ensures precise, low-pulsation dosing even when handling:
- High-viscosity liquids
- Degassing chemicals
- Varying backpressure conditions
Pressure Monitoring
DDA FCM and FC variants include minimum and maximum pressure monitoring, providing additional process protection and alarm capability.
Auto Deaeration
Automatic deaeration functions during pump standby prevent air accumulation in the dosing head, ensuring accurate dosing immediately upon restart.
Cost Efficiency
The SMART Digital S series is designed to minimize total cost of ownership:
Accurate Dosing High dosing accuracy combined with FlowControl eliminates underdosing and overdosing, optimizing chemical consumption and process results.
Extended Maintenance Intervals The full-PTFE diaphragm provides universal chemical resistance, extending service intervals and reducing spare parts costs.
Energy Efficiency State-of-the-art stepper motor drive technology reduces energy consumption compared to traditional solenoid and synchronous motor designs.
Model Selection Guide
| Application | Recommended Model | Why |
|---|---|---|
| High-pressure injection | DDA 7.5-16 | Maximum 16 bar pressure |
| General water treatment | DDA 12-10 / DDC 6-10 | Balanced flow and pressure |
| Higher volume dosing | DDA 30-4 / DDC 15-4 | Maximum flow capacity |
| Full process control | DDA FCM variants | Complete monitoring and control |
| Standard automation | DDA FC / DDC AR | FlowControl with analog input |
| Basic digital dosing | DDE series | Cost-effective digital precision |
| Fieldbus integration | DDA FCM/FC/AR | Communication capability |
Applications
Water Treatment
- Drinking water disinfection
- pH adjustment
- Coagulation and flocculation
- Dechlorination
Industrial Processes
- Cooling water treatment
- Boiler water conditioning
- Process chemical injection
- CIP (Clean-in-Place) systems
Pool & Spa
- Chlorine dosing
- pH control
- Algaecide addition
Agriculture
- Fertigation systems
- Livestock water treatment
- Greenhouse irrigation
Why Choose SMART Digital S?
Digital Precision Variable-speed stepper motor technology delivers accuracy that traditional solenoid and synchronous motor pumps cannot match.
Intelligent Monitoring FlowControl and AutoFlowAdapt functions ensure consistent dosing regardless of process variations.
Simplified Inventory Wide turn-down ratio, universal voltage, and combined connection sets minimize the variants needed to cover diverse applications.
Easy Service Click-stop mounting and modular design enable fast pump exchange and maintenance without special tools.
Future-Ready Fieldbus control capability and multiple signal inputs/outputs ensure seamless integration into modern automated systems.
Genuine Grundfos Accessories & Parts
Maintain optimal dosing pump performance with original components including PTFE diaphragms, valve assemblies, dosing heads, gasket kits, connection sets, installation hoses, and mounting plates. We stock replacement parts for all DDA, DDC, and DDE series models.
Select Grundfos Pumps
Browse our complete inventory of Grundfos SMART Digital S dosing pumps. As Grundfos Pump Suppliers in Dubai, we provide competitive pricing, technical consultation, and prompt delivery across Dubai, Sharjah, Abu Dhabi, Ajman, and all UAE locations.
Contact us for:
- Model selection based on flow, pressure, and control requirements
- Chemical compatibility guidance
- Material specification recommendations
- System integration support
- Competitive quotations
- Delivery schedules
Modular, Simple, Intelligent
The Grundfos SMART Digital S series—DDA, DDC, and DDE—sets the standard for digital dosing technology. With patented innovations, intelligent process control, and modular flexibility, these pumps deliver the precision and reliability that modern water treatment and industrial processes demand.