Swing check valve, stopper used for swing check valve, and method for manufacturing swing check valve

摘要

PROBLEM TO BE SOLVED: To provide a swing check valve 10 in which a stopper 60 is easily and surely fixed to a valve body 50, the stopper 60 which can be easily and surely fixed to the swing check valve 10, and a manufacturing method of the swing check valve 10 to which the stopper 60 can be easily and surely fixed.