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ccfowler I agree with all the responses, that is not the question. The question was - Is anyone aware of a reason/design that would not include any feed pump trips?

vanstoja The suction supply is from an pressurized elevated tank (deairator)which does not have any trips for the feed pump. The number of pump stages varies by manufacture. Thanks

pmmover I know why you should have protection, my question is Does anyone have any reasons to design a system without protection? Thanks

Is anyone aware of why a multi stage boiler feed pump (providing water to a drum boiler) operating at 350 degree suction temperature, 140 PSI suction pressure, 3600 PSI discharge pressure at 5200 RPM would not have a low suction pressure trip or a low supply tank level trip?