{"product_id":"grundfos-dme-940-4ar-composite-leak-detection-digital-dosing-pump-water-treatment","title":"Grundfos DME 940-4AR Composite Leak Detection Digital Dosing Pump for Water Treatment with Variable Stroke Speed","description":"\u003cp\u003eHandling highly aggressive media at high volumes in water treatment and large scale industrial plants requires the increased hydraulic capacity of this PVDF configuration. This DME AR unit is intended for users who need to move up to 940 litres per hour with the maximum possible material compatibility to ensure consistent dosing accuracy in heavy industrial service.\u003c\/p\u003e \u003cp\u003eThe system is driven by a 240 W motor operating on 240v, delivering a maximum dosing capacity of 940 L\/h at a 4 bar maximum operating pressure. It achieves an 800:1 turn-down ratio, enabling the system to precisely scale down to a minimum flow of 1.18 L\/h without losing the accuracy of the volumetric output during bulk transfer duties.\u003c\/p\u003e \u003cp\u003eThe electronically controlled motor with variable stroke speed provides smooth and continuous dosing with reduced pulsation across the operating range. The inclusion of a diaphragm leak detector and chemical pre-empty and empty level inputs prevents process interruptions, while the potential-free output relays provide immediate signalling for system alarms.\u003c\/p\u003e \u003cp\u003eMechanical integrity is provided by a chemically resistant PVDF pump head and durable FKM gaskets paired with glass ball valves suitable for aggressive media. The unit includes integrated connectivity for process integration, is housed in a robust IP65 enclosure, and handles liquid temperatures up to 45°C (PVDF).\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 operation and alarm relay.\u003c\/li\u003e \u003cli\u003eDiaphragm leak detector and pre-empty\/empty level inputs for system protection.\u003c\/li\u003e \u003cli\u003e800:1 turn-down ratio from 940 L\/h down to 1.18 L\/h for precise control.\u003c\/li\u003e \u003cli\u003eElectronically controlled motor with variable stroke speed for smooth and continuous dosing.\u003c\/li\u003e \u003cli\u003ePVDF pump head and FKM gaskets for resistance against aggressive chemicals.\u003c\/li\u003e \u003cli\u003eDigital control panel with operating display for configuration and monitoring.\u003c\/li\u003e \u003cli\u003eIP65 rated enclosure protects internal electronics in industrial installations.\u003c\/li\u003e \u003cli\u003eRp 1 1\/4\" threaded ports for high-capacity system integration.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50974842585335,"sku":"96528905","price":16878.84,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-dme-940-4ar-composite-leak-detection-digital-dosing-pump-water-treatment.png?v=1785153993","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-dme-940-4ar-composite-leak-detection-digital-dosing-pump-water-treatment","provider":"Foundation Pumps","version":"1.0","type":"link"}