Typical range of Operating Conditions in Centrifugal Pumps
The majority of process requirements may often be satisfied by a centrifugal pump in one of its various varieties and combinations. This covers common pumps as well as high-pressure and high-clean pumps. The types that are offered depend on the brand of pump.
Standard pump:
- Usually with a maximum system pressure of 10 bar for the majority of applications (147 psi).
- Usually available in a variety of sizes to handle a variety of tasks.
High-pressure pump:
- For filter applications, for instance, with a typical maximum system pressure of about 40 bar (588 psi).
- Usually designed with a hefty backplate and casing, an internal shaft seal, and specific motor (bearings) to handle high system/inlet pressures.
Multi-stage pumps:
- They function as a series of connected pumps. Usually has a substantial casing/backplate design, internal shaft seal, and specific motor (bearings) to sustain high inlet/system pressures.
- Usually a booster pump for high pressure at a relatively limited capacity.
A pump that functions as a liquid-ring pump for aerated fluids, such as CIP return, is a self-priming pump.