Environmental Mangement Solutions
CONVENTIONAL cast iron and lower grade stainless steel pumps are literally eaten away by the acidic water found in gold, zinc, copper and nickel mines, but the Tsurumi SFQ series 316 cast stainless steel submersibles are designed to handle corrosive liquids.
“Tsurumi Pump realised that cheaper grades of stainless steel don’t last under these corrosive applications.
Their design uses a high grade of 316 cast stainless steel because of its ability to resist corrosion,” Australian Pump Industries’ Tsurumi division manager Neil Bennett said.
“Reports from Tasmania are that these pumps are working well in copper mines.”
The SFQ range includes two-inch and three-inch three-phase pumps with heads to 44 metres and flows to 2000 lpm.
They feature a high-capacity semi open style impeller that will perform in even the toughest conditions.
The SFQ series of submersibles are unique in that even the stator housings are cast and machined 316 stainless steel.
Casings, impellers and suction covers are also cast 316 stainless steel.
The grade of stainless steel used has a higher content of carbon for strength.
It also has a high proportion of nickel and molybdenum for improved corrosion resistance.
No welds are required, which means no pitting and reduced oxidisation.
This material is also capable of withstanding abrasive liquids.
“Our experience has been that Tsurumi pumps provide trouble-free reliable operation in corrosive applications around the world,” Mr Bennett said.
Tsurumi incorporate a number of features that enhance the life expectancy of the pump and cut maintenance costs.
These include a unique anti-wicking cable gland; water is prevented from wicking down inside the cable and the motor is protected even if the cable is damaged or the end accidentally immersed.
All Tsurumi pumps have a double silicon carbide mechanical seal.
Both seal surfaces are submerged in an oil chamber, well away from the pumped liquid.
A patented oil lifter ensures the mechanical seal faces are always lubricated and cooled, even if the pump is installed horizontally.
Tsurumi Pump developed the product range in response to requirements in the Japanese market for super tough pumps for the chemical industry.
Like all Tsurumi pumps, they are backed by a three-year warranty against faulty material or workmanship.
A comprehensive free literature pack is available, as well as application data, support and a free advisory service, from the Australian Pump Industries mine engineer team.
Further information about Australian Pump Industries can be found at www.aussiepumps.com.au or by calling (02) 8865 3500.