Roll over image to zoom
SKU: 92915382
Grundfos DDA 120-7 PVC Spring-Loaded Valve Digital Dosing Pump for Degassing Liquid Dosing with AR Control
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Reliable chemical injection in standard industrial water systems requiring high-volume throughput calls for the specialised valve configuration of this XL series unit. This system is intended for applications where the requirement for up to 120 litres per hour is balanced with spring-loaded valves for improved priming and handling of non-aggressive chemicals.
Driven by a 62 W single-phase motor drawing power from a standard 240v supply, the unit delivers a maximum dosing capacity of 120.0 L/h at a 7 bar maximum pressure. It achieves an 800:1 turn-down ratio, providing the hydraulic strength required to manage large-scale chemical injection while maintaining precise digital control.
The hydraulic design utilises advanced stepper motor technology to produce smooth and continuous dosing that handles slightly viscous liquids effectively. The AR control variant includes pulse input, analog 0/4-20mA control, and two potential-free output relays, ensuring the unit can be fully synchronised with complex site process automation networks.
Structural durability is ensured by a rugged PVC pump head and EPDM gaskets paired with ceramic ball valves suitable for standard industrial liquids. The unit handles liquid temperatures up to 40°C and is housed in a robust IP65 enclosure.
FEATURES
- Spring-loaded valve design for improved priming and handling of viscous liquids.
- AR control variant with manual, pulse and analog 0/4-20mA modes and potential-free alarm relays.
- 800:1 turn-down range from 120.0 L/h down to 0.15 L/h for precise adjustment.
- Stepper motor technology provides smooth and continuous dosing.
- PVC pump head, EPDM gaskets and ceramic ball valves for standard chemical resistance.
- IP65 rated enclosure for durability in dusty or moisture-prone environments.
- Two potential-free output relays for integration with external control systems or alarm signalling.
SPECIFICATIONS
| Max Flow | 2 L/Min |
| Max Head | 70 m |
| Power | 0.062 kW / 240v |
| Suitable For | Degassing Liquid Dosing |
| Body Material | PVC |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | 19, 20, 25, 27 mm |
| Outlet Size | 19, 20, 25, 27 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What kind of power supply does this pump require to run?
Electrical specifications for the Grundfos DDA 120-7 feature a 0.062 kW motor running on 240 V power.
Can this pump operate in warm or hot water without overheating?
Liquid operating limits establish that the DDA 120-7 accommodates temperatures up to 40 °C during standard duties.
What maximum vertical water column can this pump maintain?
Dynamic lift generated by the DDA-120-7 reaches a maximum elevation head of approximately 70.0 m across discharge lines.
What discharge flow rate does this pump maintain during peak operation?
Displacing fluid into connected headers, the DDA 120 7 sustains up to 2.0 L/Min of volumetric throughput.
What primary fluid transfer and circulation roles are designated for this pump?
Primary tasks for the DDA/120/7 include Transporting aggressive process reagents, the AR-PVCEC-F-32U3U3I leverages PVC wetted assemblies capable of resisting corrosive fluids, delivering efficient water management across residential and rural systems.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us