I guess what I am really wanting to understand is what does the pressure drop profile look like. As soon as the pump is turned on the rotation of the impeller creates the low pressure needed to draw the fluid into the pump. How far does that pressure drop carry. Is it all within inches of the...
If a pump requires 7' NPSHr, and has a pressure gauge on the suction would I expect to see the pressure drop on the gauge when the pump is started or would the pressure hold constant if the suction pressure was well above that of the NPSHr? A debate has insued on where we would expect to see...
