Pump for dredge

Jwilson534

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Mar 2, 2017
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Southeast ohio
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Dredge pumps have cast in hose bibs for a blaster nozzle which is absolutely mandatory to any dredge operation. John
 

They’re both centrifugal pumps. The clearances between the impeller and housing are larger inside a trash pump. Also the impeller and housing are different designs between the two. Dredge pumps have tight clearances so they can build a lot of pressure without it bleeding off and recirculating inside the pump housing. To use a trash pump you will need to make the Venturi jet larger for better flow at lower pressure.
 

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