The above form the basis of a detailed system analysis’ and these often result in
specifying certain mechanical requirements.
For example, handling of a liquid that generates carcinogenic vapors may demand
selection of a sealless pump instead of a pump with mechanical seals.
It is essential not to be over conservative in the specification process as this can lead to
selection of pumps that not only mismatch with the process but also are expensive in the
due to over sizing.
6.1 System analysis
System analysis is the first step leading to the preparation of the pump specification.
This includes the following evaluations:
• Pump boundary conditions
• Flow requirements
• Fluid specifications
• Criticality
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