Grundfos DDA 17-7 AR-C Dosing Pump
Product Number: 93242969
Model: DDA 17-7 AR-C-PV/T/C-F-31U2U2IG
Date: 28/07/2025
Product Overview
The Grundfos SMART Digital DDA-C is a sophisticated positive-displacement diaphragm dosing pump. It features a variable-speed drive, driven by a stepper motor, and intelligent control electronics designed for minimum energy consumption. The DDA-C series ensures optimal accuracy, priming, and suction, even with high-viscosity or degassing liquids, by operating at full stroke length. The pump's discharge stroke duration varies with the set capacity, providing an optimal, uniform, and continuous discharge flow.
Key Features and Installation
The pump offers user-friendly installation with a click-stop mounting plate allowing for three different positions without extra accessories. The control cube can be easily rotated to the front, left, or right. Commissioning and operation are intuitive, facilitated by a click wheel and a multi-coloured backlit graphic plain-text LC display. Control elements are protected by a transparent cover.
Connectivity is built-in, enabling easy setup and tracking via the Grundfos GO app, and seamless integration into Modbus RTU or TCP bus systems. The dosing head is equipped with a durable, chemically resistant full PTFE diaphragm, double ball valves for maximum dosing accuracy, and a deaeration valve for simplified start-up.
Operation Modes and Functions
- Manual dosing in ml/h, l/h, or gph.
- Pulse control in ml/pulse (includes 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: Integrated Modbus RTU and TCP; Profibus DP, Profinet, and Ethernet IP via CIM/CIU models.
- Cloud control and monitoring: Via Smart Digital Chempairing Suite and Grundfos Connect.
Additional Features
- Auto deaeration during pump standby to prevent stand-still due to air-locking.
- Two SlowMode steps (anti-cavitation) offering 50% and 25% maximum flow, suitable for high-viscosity or degassing liquids.
- Max. Capacity setting to limit the pump's output to a defined maximum.
- Service information display indicating when service is due and required wear-part order numbers.
- Two-step key lock function for protection against unauthorized access.
- Multi-parameter dashboard for displaying information on up to 4 parameters.
- Counters for total dosed volume (resettable) and operating hours.
- Functionality to save, copy, and load customized settings, as well as reload factory settings.
Signal Inputs/Outputs
- Input for pulse, analog 0/4-20mA, and external stop signals.
- Input for low-level and empty-tank signals.
- Two potential-free output relays (max. 30 V AC/DC), configurable for alarm, stroke signal, pump dosing, timer, etc.
- Output for analog signal 0/4-20mA.
- Fieldbus communication interface supporting integrated Modbus RTU and TCP, Profibus DP, Profinet, and Ethernet IP via CIM/CIU models.
Performance Characteristics
The pump's performance is illustrated by a characteristic curve. This graph displays the relationship between flow rate (Q) in US Gallons Per Hour (US GPH) on the x-axis and pressure in pounds per square inch (psi) on the y-axis. For the DDA 17-7 model, under conditions of pumped liquid being Water at 68°F with a density of 62.29 lb/ft³, the pump maintains a constant pressure of 100 psi across the tested flow range.
Technical Specifications
| Description | Value |
|---|---|
| General Information | |
| Product Name | DDA 17-7 AR-C-PV/T/C-F-31U2U2IG |
| Product No. | 93242969 |
| EAN Number | 5715469765982 |
| Technical | |
| Type Key | DDA 17-7 AR-C-PV/T/C-F-31U2U2I |
| Max. Flow | 4.491 US GPH |
| Max. flow in slow mode 50% | 2.245 US GPH |
| Max. flow in slow mode 25% | 1.123 US GPH |
| Min flow | 17.0 ml/h |
| Turn-down ratio | 1:1000 |
| Approvals | CE, CSA-US, NSF61, RCM |
| Valve type | Standard |
| Maximum viscosity at 100% | 300 mPas |
| Maximum viscosity in slow mode 50% | 1300 mPas |
| Maximum viscosity in slow mode 25% | 2500 mPas |
| Accuracy of repeatability | 1% |
| Materials | |
| Dosing head | PVDF (Polyvinylidene fluoride) |
| Valve ball | Ceramic |
| Gasket | PTFE |
| Installation | |
| Range of ambient temperature | 32..113 °F |
| Maximum operating pressure | 101.53 psi |
| Installation set (Yes/No) | 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 | 19.7 ft |
| Max. Suction lift during priming | 9.84 ft |
| Liquid | |
| Pumped liquid | Water |
| Liquid temperature range | 32..113 °F |
| Selected liquid temperature | 68 °F |
| Density | 62.29 lb/ft³ |
| Electrical Data | |
| Maximum power input - P1 | 24 W |
| Mains frequency | 50/60 Hz |
| Rated voltage | 1 x 100-240 V |
| Enclosure class (IEC 34-5) | IP65 / TYPE 4X |
| Length of cable | 4.92 ft |
| Type of cable plug | Australia, New Zealand, Taiwan |
| Inrush current | 25A at 230V for 2ms |
| Controls | |
| Control variant | AR-C |
| Control panel | Front-Mounted |
| Level control | YES |
| Analog input | 0/4-20 mA |
| Pulse control | YES |
| Ext. Stop input | Yes |
| Analog output | 0/4-20 mA |
| Output relays | 2 |
| Bus communication | YES |
| Others | |
| Net weight | 6.62 lb |
| Gross weight | 6.62 lb |
| Colour | RED |
| Country of origin | FR |
| Custom tariff no. | 8413709062 |
Dimensional Information
The pump has the following approximate dimensions (all units in inches unless stated otherwise):
- Height: 11.20 inches
- Width: 6.34 inches
- Depth: 4.72 inches
- Other notable dimensions include approximately 0.94 inches, 1.56 inches, 4.13 inches, 4.33 inches, 6.73 inches, 7.89 inches, 8.43 inches, 10.00 inches, and a G 5/8" connection.
The provided drawings offer front, side, and top views of the unit, detailing its physical configuration.
Wiring and Connection Diagram
The pump features a comprehensive wiring interface for control and communication. Key connections include:
- Power/Control Terminals: Terminals are labeled for 5V, GND, BUS (likely for communication), RX+, TX+, RX-, TX-.
- Analog Input: A terminal for 0/4-20 mA analog input is present.
- Pulse Input: A terminal for pulse control signals.
- External Stop: A terminal for an external stop signal.
- Output Relays: Two potential-free output relays are available.
- Analog Output: A terminal for 0/4-20 mA analog output.
The diagram illustrates the physical layout of these connections on the pump unit.
