Pumps are often built into existing systems, where predetermined installation conditions can easily become a problem. The KRAL Z series offers the solution with a unique innovation for screw pumps. The connections can be flexibly arranged both horizontally and vertically. The installation options are therefore unlimited.
Both installation variations are designed with external bearings so that the bearings don’t come into contact with the liquid. This significantly increases their lifetime. The mechanical seals are located on the suction side of the pump flow and are cooled and lubricated by the pumped liquid. Both single- and double-acting mechanical seals can be used in combination with an extremely broad range of seal supply systems. Different materials can be used in the design, depending on the pumped liquid.