The Grundfos DDA 30-4 Smart Digital dosing pump (type key DDA 30-4 AR-PVC/V/C-F-32I004BG, part number 97722679) is a digital diaphragm metering pump with a variable-speed stepper motor drive, delivering smooth, continuous chemical injection with exceptional accuracy across its full adjustment range. The Digital Dosing Advanced (DDA) platform is Grundfos' high-end solution for complex and demanding dosing applications. Control variant AR includes an alarm relay and analog input (0/4-20 mA) for external control and monitoring.
Specifications
| Part Number | 97722679 |
|---|---|
| Type Key | DDA 30-4 AR-PVC/V/C-F-32I004BG |
| Maximum Flow | 7.93 GPH (30 l/h) |
| Maximum Pressure | 58 psi (4 bar) |
| Connections | Tubing union connections with installation kit (I004) |
| Dosing Head | PVC (Polyvinyl Chloride) |
| Gasket Material | FKM (Viton) |
| Valve Balls | Ceramic |
| Power Supply | 100-240 V, 50/60 Hz, single phase |
| UPC | 5710622728422 |
Applications
- Antiscalant and chemical injection for reverse osmosis (RO) systems
- Chlorination and dechlorination (sodium hypochlorite, sodium bisulfite)
- pH adjustment and coagulant/flocculant dosing
- Industrial process water treatment and cooling water treatment
Key Features
- Variable-speed stepper motor for continuous, pulsation-reduced dosing
- High turndown ratio for precise dosing from very low to full capacity
- Intuitive click-wheel interface with bright graphical LCD
- Auto-deaeration and easy priming, even against pressure
- Full-PTFE diaphragm with chemical-resistant liquid end
ForeverPure is an authorized Grundfos partner. Contact us for application sizing assistance, chemical compatibility review, and volume pricing.
