Specification of SELF PRIMING CENTRIFUGAL PUMP
Standard (non-self-priming) centrifugal pumps come in many types. When they operate on flooded suction lines or in submersible applications, the impeller is surrounded by enough water to create the pressure differential and thus to pump water. Air is the main enemy of a standard (non-self-priming) centrifugal pump.
A "self-priming" centrifugal pump overcomes the problem of air binding by mixing air with water to create a fluid with pumping properties much like those of regular water. The pump then gets rid of the air and moves water only, just like a standard centrifugal pump.
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