They are installed in the discharge line near the pump

DDA 30-4 AR-PV/T/C-F-32I002FG The SMART Digital DDA is a compact positive displacement

DDA 12-10 FC-PP/V/C-F-32I002FG The SMART Digital DDA is a compact positive displacement

please use a console

dda 12 10 fcm pv e c f 32i002fg 97722131 They are installed in theDDA 12 10 FCM PV E C F 32I002F 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,