Liquid supplying device for use in physical and chemical apparatus

摘要

A liquid supplying device has liquid supplying piston pumps driven by turns for drawing up liquids contained in chemical vessels through liquid intake passages and sending out the liquids to an analyzer or other inspection apparatus through liquid outlet passages. The liquid intake and outlet passages have change-over valves controlled by an automatic sequence controller so as to send out alternately the liquids in the properly mixed state to the analyzer without pulsation of flow.