Eye of impeller

Let s try one more time. Suppose we tear off the insulation on the suction line and on the pump case and then spray cool water on the bare line. The temperature of the liquid in the drum, which is at 140°F, cools as it flows into the pump. By the time the liquid reaches the eye of impeller, it has cooled to 135°F. Will this slightly colder liquid provide more NPSH to the pump ... 

STR with gassing tube or hollow tube turbine. STR with single axial impeller + gas introduced to eye of impeller via a vertical central gas tube from the top. 

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See also in sourсe #XX -- [ ]

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