2 pumps into 1 discharge line

two signal-relay outputs (potential-free contacts)

DDE o DDI tappo in PE

A special "Low NPSH" first-stage design reduces the pump's NPSHr value

The agitator must be protected against dry-running

dda 30 4 ar pvc v c f 31u7u7bg 97722676 2 pumps into 1 dischargeDDA 30 4 AR PVC V C F 31U7U7BG The SMART Digital DDA is a compact positive displacement, diaphragm dosing pump with variable speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high viscosity or degassing liquids. The duration of each discharge stroke varies according to the capacity set,