Balgpumpe für die Dosierung verschiedener Flüssigkeiten

摘要

The invention provides a fluid apparatus in which two or more kinds of chemical liquids can be rapidly stirred and mixed in a pump to a uniform concentration. A barrier membrane (7) is disposed in a pump body (1) so as to form a liquid chamber (9) between the barrier membrane and an inner wall (4a) of the pump body (1). A suction port (18) and a discharge port (19) are disposed in the inner wall (4a) of the pump body (1). An outlet portion (18a) of the suction port (18) is disposed in a side face of a protruding forward end of a suction check valve (20) which is fixed to protrude from the inner wall (4a) of the pump body (1) into the liquid chamber (9), whereby the outlet portion is opened so as to eject the two or more kinds of chemical liquids toward a circumferential wall (9a) in the liquid chamber (9).