from The Century Dictionary.
- noun A pump in which the liquid confined in the pump-barrel by a foot-valve or check-valve is forced by displacement, during the inward stroke of a plunger, through another check-valve into the discharge-pipe or -passage, or the air-chamber, of the pump.
Sorry, no etymologies found.
Cat Pumps has added the 6775, 6771 and 6777 models to its 60-frame triplex plunger-pump range.
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