Submersible drainage pump

The Grindex Master Inox series comprises three drainage and three sludge pumps in stainless steel. The pumps originate from Grindex's red Proline pumps, with the cast aluminium replaced by cast stainless steel. The stainless steel pumps are intended for use in corrosive applications with pH values from 2-10. Some examples are mines, process industries, harbours and leach water applications.

The drainage pump Master Inox is designed for use in applications where conventional pumps are destroyed quickly, due to the extreme pH values in the fluids.

The pumps have been tested and evaluated in extreme conditions, pumping both acidulous and alkali fluids. In all tests, the pumps have coped with the extreme environments and worked well during the whole test period. The biggest difference between the red Proline pumps and the Inox pumps is the cast parts; in Inox all cast aluminium parts have been replaced by acid-proof stainless steel (SS2343/EN316).

The Inox pumps have many spare parts in common, ie, the shaft seal that fits all Inox pumps. These are details that simplify service and minimise the stock of spare parts.

The pumps come equipped with an air valve that makes the impeller work as a fan and cools the motor should the pump run dry. They can also be equipped with Smart, a motor protection that protects the pump from single phasing, incorrect direction of rotation and overheating. As the Smart unit will be built in, it both simplifies and speeds up the installation process of the pump.

The next pump model in the series to be launched is Major Inox. It is slightly smaller and will have the same ability to pump corrosive fluids in demanding applications as the Master Inox.