The Grundfos DDA 17-7 (product number 97722642, type key DDA 17-7 FCM-PVC/V/C-F-31U7U7B) is a digital dosing pump with a maximum capacity of 4.491 US gal/hour at up to 101.53 psi, with an exceptional 1:1000 turndown ratio for precise chemical metering.
Official Grundfos curve — 60 Hz, water at 68 °F. Head (H) and efficiency (η) against flow (Q); lower chart shows power and NPSH required.
| Maximum capacity | 4.491 US gal/hour |
| Minimum capacity | 17.0 ml/h |
| Maximum pressure | 101.53 psi |
| Turndown ratio | 1:1000 |
| Dosing accuracy | 1 % |
| Control variant | FCM |
| Maximum suction lift (operation) | 19.7 ft |
| Maximum suction lift (priming) | 9.84 ft |
| Max viscosity (at 25 mPas class) | 2000 mPas |
| Dosing head | PVC (Polyvinyl chloride) |
| Gaskets | FKM |
| Valve balls | Ceramic |
| Valve type | Standard |
| Supply voltage | 100-240 V |
| Frequency | 50 / 60 Hz |
| Maximum power (P1) | 24 W |
| Enclosure class | IP65 / TYPE 4X |
| Analog input | 0/4-20 mA |
| Analog output | 0/4-20 mA |
| Pulse input | Yes |
| External stop input | Yes |
| Level indication input | Yes |
| Bus communication | Yes |
| Output relays | 2 |
| Cable length | 4.92 ft |
| Plug | USA, Canada |
| Suction connection | 0.17x 1/4, 1/4x3/8, 3/8x1/2" |
| Discharge connection | 0.17x 1/4, 1/4x3/8, 3/8x1/2" |
| Liquid temperature range | 32 °F to 113 °F |
| Ambient temperature range | 32 °F to 113 °F |
| Sound pressure level | 60 dB(A) |
| Approvals | CE,CSA-US,NSF61,RCM |
| Grundfos product number | 97722642 |
| EAN | 5710622728057 |
| Net weight | 4.41 lb |
| Gross (shipping) weight | 6.6 lb |
Chemical dosing for water treatment • antiscalant and biocide dosing for reverse osmosis • chlorination and pH adjustment • coagulant and flocculant dosing • industrial process chemical metering • cooling tower and boiler chemical treatment.
Accessories for This Pump
Commonly specified alongside Grundfos E-pumps. Send us your pump nameplate and we will confirm the correct part for your exact build and voltage before you order.
- RPI Inlet Pressure Sensor
Inlet pressure protection with low-suction shutdown. 
VFS Flow & Temperature Sensor
Flow and temperature feedback to the pump’s onboard controller.- RPS Pressure Sensor
Discharge pressure feedback for constant-pressure booster control.
Building-automation connectivity
This pump accepts a Grundfos CIM interface card (or an external CIU box) to report to a BMS or PLC. All eight are the same card with a different protocol — choose the one your building system speaks:
CIM/CIU 100 GENIbus · CIM/CIU 150 PROFIBUS DP · CIM/CIU 200 Modbus RTU · CIM/CIU 250 Modbus TCP · CIM/CIU 300 BACnet MS/TP · CIM/CIU 500 EtherNet/IP · CIM/CIU GRM · CIM/CIU LonWorks
