Description
The Grundfos 97721654 (DDC 9-7 AR-PV/E/C-F-32I004BG) is a Digital dosing pumps 100-240V 1-Phase — SMART Digital diaphragm dosing pump with internal stepper motor drive. User-friendly at optimum price-performance-ratio (Digital Dosing Convenience).. Designed for Process liquids transfer, Cooling, Industrial process water treatment.
Why This Product
Motor-Driven Diaphragm — Precise and Pulsation-Free
Motor-driven diaphragm mechanism delivers chemically accurate dosing without the pressure variation of solenoid-driven designs. Consistent dose volume at each stroke regardless of back-pressure changes in the dosing line.
Grundfos Smart Digital Interface
DDA/DDC series pumps feature the Grundfos Smart Digital interface — touchscreen control, communication protocols (Profibus, Modbus, GENIbus), and external signal input for analogue control from analyzers and SCADA systems.
Chemical Resistance — PVDF and Stainless Construction
Liquid end components in PVDF (polyvinylidene fluoride), stainless steel, and EPDM/Viton for compatibility across a broad range of chemicals — acids, alkalis, oxidizers, and solvents used in water treatment and process applications.
Auto-Degas Function
Automatic degassing function purges gas bubbles from the pump head before dosing — critical for hypochlorite and other gas-releasing chemicals where air pockets cause dosing inaccuracy and pump damage.
Wide Flow Range with One Pump
Variable stroke frequency and length provide a wide effective flow range from a single pump — one pump covers multiple dosing rate requirements without requiring different pump models.
Leak Detection and Dry-Run Protection
Integrated leak detection and dry-run protection prevent chemical spills and pump damage from empty chemical containers — important safety features for unattended dosing installations.
| Max Operating Pressure | 101.53psi |
| Max Fluid Temperature | 113°F |
| Max Ambient Temperature | 113°F |
| Min Ambient Temperature | 32°F |
| Voltage | 100-240V |
| Phase | 1-Phase |
| Frequency | 50, 60 Hz |
| Protection Class (IP) | IP65 / TYPE 4X |
| Cable / Plug Type | USA, Canada |
| Inlet Connection | Hose 3/8x1/2" S |
| Outlet Connection | Hose 3/8x1/2" S |
| Gasket Material | EPDM |
| Dosing Head Material | PVDF (Polyvinylidene fluoride) |
| Model Number | 97721654 |
| Product Series | DDC 9-7 AR-PV/E/C-F-32I004BG |
| Model Code | DDC 9-7 AR-PV/E/C-F-32I004BG |
| Approvals / Certifications | CE, CSA-US, NSF61, RCM |
| Electrical | Requires correctly rated supply — 100-240V, 1-Phase, 50, 60 Hz. Install with correctly rated circuit protection and motor starter. |
| Temperature limits | Do not exceed max fluid temperature 113°F or max ambient temperature 113°F. Operating outside these limits will damage seals and motor insulation. |
| Dry running | Do not run dry. DDC 9-7 AR-PV/E/C-F-32I004BG pumps use the pumped fluid to lubricate the shaft seal — dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance intervals. Contact PumpStop for documentation. |
Motor Curves
Dimensional Drawing
SMART Digital S DDA, DDC (Quick Guide)
OPTIMIZED INDUSTRIAL SOLUTIONS (Product brochure)
GRUNDFOS DOSING AND DISINFECTION (Product brochure)
Water Utility, Optimized solutions for Municipalities (Product brochure)
SMART Digital S - DDA and DDC (Safety instructions)
SMART Digital S - DDC, up to 15 l/h (I & O instructions)
SMART Digital S - DDA and DDC (Safety instructions)
SMART Digital S, DDA, DDC, DDE up to 30 l/h (Data Booklet)
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