BOURDON TUBE PRESSURE GAUGE

摘要

PURPOSE: A bourdon tube pressure gauge is provided to prevent a bourdon tube fixed in a resin connection unit from separated by solidifying glue in a concave part. CONSTITUTION: A bourdon tube pressure gauge comprises a connection unit(3) of resin-made which is attached to a pressure vessel and a bourdon tube(4) of a metal material wherein the base part is fixed to the connection unit. A fixing hole(3a) in which the base part of the bourdon tube is inserted and which is attached is formed in the connection unit. A concave portion(3m) entering to the platform direction of the bourdon tube base part inserted into the fixing hole is formed in the side of the fixing hole. The concave part is formed to the inner side of the fixing hole. The concave part is widely formed than an opening(3e) of the fixing hole.