F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
F04B45/022—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows with two or more bellows in parallel
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Engineering & Computer Science
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Mechanical Engineering
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General Engineering & Computer Science
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Compressors, Vaccum Pumps And Other Relevant Systems
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