The reason for the NAUTILUS redesign wasn't just in order to change the look of the submersible pump. Well thought-out details ensure that the already easy handling of the pump was improved even further. With the new design of the NAUTILUS, both the circumstances during an operation as well as the restoration of availability have been considered. The most important premise was practicality.
The NAUTILUS is now even more robust due to the more angular pump body. More space has been created in the area of the Storz coupling, so that all couplings can be attached or detached without modifications. The cable strain relief and cable bracket have been realized in one component in the newly designed NAUTILUS, which guarantees more space for the pump cover. So a carabiner can be hooked into the lifting lugs even more quickly and easily.
Easier to maintain
In the redesigned NAUTILUS, the suction strainer is held with three screws, so that it can be quickly removed. Also very practical for maintenance work is the fact that the handle, lifting lugs, and Storz B coupling are level. So the NAUTILUS is also very stable when standing on its head, which in turn facilitates better handling, e.g., when maintaining the impeller. An additional retaining plate for the condensers and engine protection relay facilitates their assembly, the guide ring which is cast with the suction strainer now forms a quickly assembled or dismantled unit.
Even better overall package
The submersible pumps of the NAUTILUS series are available in three different versions: from the powerful NAUTILUS 8/1 (operation with 400V and three phases) with an output of up to 935 l/min at 1 bar pressure to the NAUTILUS 4/1 ECO (230 V, 1 phase), which was specially developed for operation with the smaller 3 kVA generators, but can still discharge up to 420 liters water per minute at 1 bar pressure.
The robust construction combined with the low weight, the low start-up current in conjunction with the high output and the factors which are decisive in operations, such as deep-drawing down to a water level of just a few millimeters, have made the NAUTILUS an essential piece of equipment for many fire departments since its launch. With the new design, Rosenbauer's technicians have made a well-enginered product even better.