They have a litre scale and a black screw cap

The mechanical shaft seal is a special designed

Can be installed vertically or horizontally

Anti-blocking

alternating operation of two pumps

ddc 9 7 a pv e c f 31i002fg 97721414 They have a litre scaleDDC 9 7 A PV E C F 31I002FG The SMART Digital DDC 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,