Cornell Pump Company

SP Slurry Pump going strong after three years in service

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Source: Cornell Pump Company

An Australian sand quarry began using a Cornell 6SP rubber-lined slurry pump in May of 2012, and it has run without a seal leak since! The sand quarry extracts approximately 50 tons per hour of materials that is fed through the Cornell 6SP as a slurry, which is then spun in a cyclone seperator to extract the usable sand. The detritus is separated from the sand and returned to the quarry area.

The sand is used in general construction projects throughout Australia, as fill and often as additive for concrete production.

The operation is active five days a week about nine hours each day, pumping a slurry of approximately 30% solids. The rubber liner and impeller help extend pump life. The 6SP has been subject to more than 1,600 start and stop instances since its installation. The pump has worked flawlessly. General wear parts such as impeller and liner have been replaced in the three years of operation, but the Cycloseal® sealing system has not had to be replaced once. No leaks in the sealing system have occurred, and the pump has been in operation close to 7,000 hours. The quarry manager is very impressed with the durability and reliability of the 6SP, and happy that he doesn’t have to contend with pump leaks common on competitors’ slurry pumps.

The 6SP is part of the SP series, with pumps from 2” to 12”, handling pH levels for 1 to 14 (varies depending on the lining and impeller material.) The SP series is available in rubber or metal liners and impellers, with heads up to 235’ feet at best efficiency and flows of up to 14,000 GPM, and ability to handle a 3.5” solid.

Download the Application Story from the Cornell Web Site.

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