BAG REPLACING BUNG AT AIRTIGHT CONTAINER PORT SECTION

摘要

PROBLEM TO BE SOLVED: To provide a bag replacing bung at an airtight container port section capable of reliably keeping the airtightness of an airtight container and capable of conducting the work easily and efficiently during the replacing work of the bag connecting airtight containers such as glove boxes. SOLUTION: A rubber annular body 11 having the diameter fitted with an airtight container port section and a metal annular body 12 having the diameter larger than that of the rubber annular body 11 are concentrically and integrally fixed, and both annular bodies are formed into a two-piece structure to obtain a bung 10. One butt section 13 of two butt sections of the two-piece structure is connected by a hinge 15, and the other butt section 14 is made openable by a connecting bolt 17 provided on the inner periphery section of the annular bodies. A bag can be inserted into the center opening 10c of the bung l0, the bag is fitted between ports while being inserted into the bung 10, then the bung 10 can be removed from the bag.