Tsurumi Pump stainless steel mine dewatering pumps

Mine dewatering is one of the toughest applications for a submersible pump — it is not only issues with abrasion and high temperature but the wastewater involved is highly corrosive.

Tsurumi Pump has released a range of all stainless steel pumps designed for just such liquids. The biggest of these are the 6″ and 8″ LH series pumps with motors of up to 110 kW. Impellers, casings, motor frames, outer covers, strainer stands and flanges are all made of corrosion-resistant 316 stainless steel.

The LH stainless steel series with 110 kW motors provide pumps with flows of up to 6500 L/min and heads to 107 m.

The LH series in their standard cast iron configuration are already popular in mines because of their slimline design. The high head configuration means they can outperform other brands that need to be used in tandem to achieve the same head capacity.

The LH series also incorporates Tsurumi’s standard features, all aimed at delivering life cycle costs significantly below the industry average. These include an anti-wicking cable entry that prevents water ingress into the motor if the power lead is damaged or the end submerged.

All Tsurumi 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 entire range offers double silicon carbine seals with an oil lifter, incorporated in the seal chamber, which ensures seal surfaces are always lubricated.