Tsurumi 1000 V submersible dewatering pumps

Tsurumi’s 1000 V submersible dewatering pumps offer 11–110 kW of power. The pumps are said to feature advanced design and heavy-duty construction.

The series was specifically designed to withstand the punishing conditions found in mining sites. The three-phase pumps have flows of up to 6500 L/min and maximum head of up to 200 m.

The pumps are loaded with features designed to give mine operators low cost of ownership. The motors feature in-built thermal protection that cuts power on overcurrent or extended dry run conditions. The self-reset activates once the motor has cooled, allowing the pump to automatically restart.

The series includes features that maximise the uptime of the pump. These include an antiwicking cable entry that prevents water from entering the motor if the power lead is damaged or nicked.

A double silicon carbide seal comes with all models. Both seal surfaces are submerged in an oil chamber, away from the pumped liquid. This ensures lubrication and protects against ingress of foreign materials.

The mechanical seal design features a Tsurumi Oil Lifter that increases seal longevity. The lifter ensures both the upper and lower seals are lubricated and cooled, even if the oil level in the chamber is low or if the pump is operating out of level.