The diaphragm pump is actually an embolization pump, which separates the liquid to be transported from the live column and the pump cylinder by means of a membrane, thereby protecting the live column and the pump cylinder. The parts on the left side of the diaphragm that are in contact with the liquid are made of corrosion-resistant materials or coated with a layer of corrosion-resistant substances; the right side of the diaphragm is filled with water or oil.
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