BEVERAGE FEEDER

摘要

PROBLEM TO BE SOLVED: To provide a beverage feeder having a pump low in device cost and capable of preventing the leakage of a liquid from a shaft seal part for a long time with a simple configuration without increasing the pump size. SOLUTION: A groove 61J is formed on an axial seal mounting groove 61H inside a pump and pressure to an axial seal 67A is released through this groove 61J to an opening part 61D of a low pressure part.