TUBE WITH REVERSE FLOW PREVENTING SPHERICAL BALL VALVE

摘要

PROBLEM TO BE SOLVED: To provide a tube with a reverse flow preventing spherical ball valve capable of dripping contents with good draining. SOLUTION: In this tube with a reverse flow preventing spherical valve, the tube is provided with a spherical valve for preventing reverse flow of contents into the tube 1, at least one or more longitudinal grooves 8 are formed in the surface of an upper stop part 6 for restraining rising of a spherical body 9 formed on a spherical body storing part 5 of a plug body 3.