The unbalanced rubber bellows seal is according to DIN EN 12756

materials and accessories

The pump is a cast iron submersible pump with integrated submersible 3-phase motor

DDA 17-7 FCM-PV/T/C-F-31U7U7BG The SMART Digital DDA is a compact positive displacement

cr 10 10 k fj a e hqqe 96550510 The unbalanced rubber bellows sealVertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). The pump head and base are in cast iron all other wetted parts are in stainless steel. A special "Low NPSH" first stage design reduces the pump's NPSHr value. A cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Power transmission is via a rigid split coupling. Pipe connection is via combined DIN JIS flanges. The pump