{"product_id":"grundfos-dda-120-7-ar-control-digital-dosing-pump-chemical-dosing","title":"Grundfos DDA 120-7 PVDF AR Control Digital Dosing Pump for Chemical Dosing","description":"\u003cp\u003eProcess water reticulation and high-capacity chemical treatment require a dosing system that combines significant throughput with advanced signal feedback. This Smart Digital XL configuration is intended for automated environments where the pump must interact with external sensors and control protocols to ensure fluid handling stability.\u003c\/p\u003e \u003cp\u003eOperating on a 240v supply, the unit consumes 62 W of power while delivering a maximum dosing capacity of 120.0 L\/h at a 7 bar maximum operating pressure. It features a turn-down ratio of 800:1, providing the hydraulic strength required to manage high-volume chemical injection while maintaining the ability to scale down to a minimum flow of 0.15 L\/h.\u003c\/p\u003e \u003cp\u003eThe hydraulic design utilises advanced stepper motor technology to provide smooth and continuous dosing. The AR control variant supports manual, pulse, and analog 0\/4-20mA operation, incorporating two potential-free output relays for system alarms or integration with external control systems.\u003c\/p\u003e \u003cp\u003eConstruction features a chemically resistant PVDF pump head paired with durable PTFE gaskets and ceramic ball valves to ensure compatibility with aggressive media. Housed in an IP65-rated enclosure, it is supplied with high-capacity U3 connection packs and handles liquid temperatures up to 50°C.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAR control variant with manual, pulse and analog 0\/4-20mA modes and potential-free relay outputs.\u003c\/li\u003e \u003cli\u003eInternal auto deaeration in standby mode prevents gas locks with degassing chemicals.\u003c\/li\u003e \u003cli\u003e800:1 turn-down ratio from 120.0 L\/h down to 0.15 L\/h for high-volume precision.\u003c\/li\u003e \u003cli\u003eStepper motor technology provides smooth and continuous dosing.\u003c\/li\u003e \u003cli\u003ePVDF pump head, PTFE gaskets and ceramic ball valves for aggressive chemical compatibility.\u003c\/li\u003e \u003cli\u003eIP65 rated enclosure protects internal electronics in industrial environments.\u003c\/li\u003e \u003cli\u003eU3 connection packs for standard 19\/20 mm hose and 25 mm pipe systems.\u003c\/li\u003e \u003cli\u003eTwo potential-free output relays for system alarms or integration with external control systems.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50974841864439,"sku":"99246423","price":9571.16,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-dda-120-7-ar-control-digital-dosing-pump-chemical-dosing.png?v=1785153958","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-dda-120-7-ar-control-digital-dosing-pump-chemical-dosing","provider":"Foundation Pumps","version":"1.0","type":"link"}