The utility model relates to the field of pressure reducing valves, and discloses a
copper piston type pressure reducing valve which comprises a pressure regulating
pipe, an outer rubber film is movably connected to the interior of the pressure regulating
pipe, a movable
solid column is fixedly connected to the interior of the outer rubber film, a bearing is fixedly connected to the top of the movable
solid column, one end of the bearing is fixedly connected with a rotating stud, and the other end of the bearing is fixedly connected with the rotating stud. And the outer wall of the rotating stud is movably connected with an extension
pipe. According to the
copper piston type pressure reducing valve, through the arrangement of the pressure adjusting pipe, the outer rubber film, the movable
solid column, the bearing, the rotating stud, the extension pipe, the
external connection block and the rotating
handle, the
copper piston type pressure reducing valve can be used more efficiently, and the
internal pressure in the using process of the copper piston type pressure reducing valve can be adjusted; in addition, the
working environment which the copper piston type pressure reducing valve can adapt to is increased, the requirements for various types of piston type pressure reducing valves in various environments are reduced, the working complexity of workers in the installation work is reduced, and long-term use of the copper piston type pressure reducing valve is facilitated.