What Is Difference Between Monoblock And Self Priming Pump?

What Is Difference Between Monoblock And Self Priming Pump? The main difference between self-priming pump and centrifugal pump is that the inlet pipe of self-priming pump can suck up the water without filling the bottom valve for the first time, and no further water is needed later. What is a monoblock pump? A Monoblock Pump