MOUNTING ASSEMBLY FOR PRESSURE GAUGE

A pressure gauge coupling assembly according to the present invention includes: a seating bracket having a convex container shape so that a pressure gauge is introduced into one side of the seating bracket, and provided at an inlet side thereof with a seating flange; a fixing bracket formed in a hollow pipe shape and having a fixing flange at an outer peripheral surface of a middle part thereof in a longitudinal direction, in which the seating bracket is introduced into the fixing bracket so that the seating flange is seated on an end of the fixing bracket in a longitudinal direction, and the other side of the fixing bracket in a longitudinal direction is introduced into a fluid transfer tube; a protective cap coupled to the fixing bracket to cover the pressure gauge and having an open window at a part corresponding to a display window of the pressure gauge; a rubber packing inserted between an upper surface of the seating flange and the protective cap; and a measurement tube having one longitudinal end passing through the seating bracket to be coupled to the pressure gauge, and the other longitudinal end positioned in the fluid transfer tube.