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What is the pressure output of a (boost) fuel pump on a Boeing 767 and/or 777, compared to a heavy-duty jettison fuel pump.

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I looked up a cannister boost pump and jettison fuel pump on the Eaton website and found a cannister boost pump for the 747 that puts out 28,000 Pounds Per Hour, and a jettison pump also for the 747 that puts out 40,000 PPH. Safe to say jettison pumps generally have a higher output than engine boost pumps, for obvious reasons.

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  • $\begingroup$ This answers volume; the question asked about pressure. Although I'd agree that especially for a jettison pump, PPH matters more than PSI. $\endgroup$
    – Ralph J
    Feb 19, 2021 at 4:56
  • $\begingroup$ @RalphJ depending on the type of pump PSI doesnt matter, if the pump is positive displacement (which the unit of PPH seems to imply) the pressure is a result of the system around the pump not the pump itself $\endgroup$
    – bruh_weed
    Oct 17, 2021 at 21:48

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