PUMP, PUMP DEVICE, AND LIQUID SUPPLY SYSTEM

摘要

A stay of a liquid is suppressed. A pump (100) includes: a tube (102) in which a liquid of a transfer target flows by having elasticity; a tube housing (104) which covers the outside of the tube (102), and keeps a gas in an inner space (V) between an outer surface of the tube (102) and the tube housing (104); and an electropneumatic regulator (RE) which supplies the gas to the inner space (V) and discharges the gas from the inner space (V).