The unbalanced rubber bellows seal is according to DIN EN 12756

alternating operation of two pumps

DDC 15-4 AR-PVC/T/C-F-32U2U2FG The SMART Digital DDC is a compact positive displacement

Non-self-priming

DDA 12-10 FCM-PV/T/C-F-31U2U2I The SMART Digital DDA is a compact positive displacement

sq 1 125 96510194 The unbalanced rubber bellows seal3" multi stage, submersible pump designed for domestic water supply, liquid transfer in tanks, irrigation and environmental applications. The pump has "floating" impellers, each with its own tungsten carbide ceramic bearing. The pump features soft starting and protection against dry running, upthrust, overvoltage, undervoltage, overload and overtemperature. The motor is a single phase motor of the permanent magnet rotor type ensuring optimum