Posts Tagged ‘impeller’

Affinity Laws help govern the performance of centrifugal pumps

Thursday, August 16th, 2018 von admin

In this latest edition of the Centrifugal Pump Minute, the specialists of Grisworld take a look at the Affinity Laws that help govern the performance of your centrifugal pumps.

Learn how to easily estimate a pump’s performance when the impeller diameter is changed.

 

 

 

Water intake pumps to China’s mega-refinery

Wednesday, July 25th, 2018 von admin

Over the past decades, international technology Group Andritz has become a byword for highest quality and customized pump solutions and is now a preferred partner on a global scale. In the interests of its customers, the Pumps division does not set itself any limits with regard to size and flow rate in the development and manufacturing of tailor-made pumps. Thus, Andritz has been commissioned to supply the water intake pumps for China’s first privately managed and largest petrochemical plant.

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Impeller improves suction characteristics in high-pressure pumps

Tuesday, July 24th, 2018 von admin

KSB experts developed a special impeller for its Movitec multistage high-pressure pumps. This new impeller significantly improves these pumps’ suction characteristics (NPSH value).

It proves its worth particularly in applications with critical inlet conditions (e.g. boiler feed applications) as well as applications in which the pump is required to take in water from low-lying tanks or at higher temperatures. Under these conditions, a pressure drop in the intake area may cause cavitation to occur in the first pump stage. This can result in excessive wear of pump parts or motor bearings as well as a reduced service life of the pump due to damaged parts and an unbalanced hydraulic system.

The new impeller is offered as an alternative to the standard product.

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