There are many types of pumps, each with its own characteristics, advantages and disadvantages. Basically, pumps can be broadly categorised into 3 types :Non-positive-displacement pumps e.g. centrifugal pumps Positive displacement pumps e.g. reciprocating pumps, gear pumps, screw pumps, etc. Special devices like eductors which can also be included in this category.Centrifugal Pumps This type of pump does not have a self-priming capability. Consequently, it operates best only when there is a positive head on the suction side. However, this pump has the distinct capability of … [Read more...]