In case of pump systems, how many of such systems shall be used as a maximum?
Is it differently to sprinkler and water spray systems acceptable to use systems with, say, 10 relatively small pumps despite the relatively large number of moving parts etc? Redundancy is the key parameter. A system pump unit should be designed such that the total required flow rate is maintained despite the loss of a single pump. Equally, should the system pump unit provide its desired capacity if a single driver, e.g. electrical motor malfunctions. For the case where a very high degree of reliability is asked for, redundant sets of complete pump units may be used.
