An air conditioner, comprising: a plurality of branched pipes that are connected to a heat exchanger; an expansion valve-side pipe that leads to an expansion valve; and a flow diverter that is capable of dividing a refrigerant flowing from the expansion valve-side pipe and sending the refrigerant to each of the branched pipes, wherein the flow diverter has a flow diverter main body having an internal space therein, a first connection portion that is connected to the expansion valve-side pipe and thereby communicates the inside of the expansion valve-side pipe with the internal space of the flow diverter main body, and a second connection portion to which each of the plurality of branched pipes is connected and which communicates the inside of each branched pipe with the internal space, the first connection portion has an inner peripheral surface that defines a pipe connection hole to which the expansion valve-side pipe is fixed, with the expansion valve-side pipe being inserted thereto, while the second connection portion is provided with the branched pipes disposed side-by-side at intervals on a circumference of a circle around a central axis of the pipe connection hole, characterized in that the inner peripheral surface has, in a direction of the central axis, a brazing portion which is provided at a location containing an end on the side where the expansion valve-side pipe is inserted, and forms a gap (α) filled with solder for brazing between the inner peripheral surface and an outer peripheral surface of the expansion valve-side pipe, and a restricting portion for restricting inclination of the expansion valve-side pipe at the time of brazing, an inner diameter of the restricting portion is smaller than that of the brazing portion. a plurality of branched pipes that are connected to a heat exchanger; an expansion valve-side pipe that leads to an expansion valve; and a flow diverter that is capable of dividing a refrigerant flowing from the expansion valve-side pipe and sending the refrigerant to each of the branched pipes, wherein the flow diverter has a flow diverter main body having an internal space therein, a first connection portion that is connected to the expansion valve-side pipe and thereby communicates the inside of the expansion valve-side pipe with the internal space of the flow diverter main body, and a second connection portion to which each of the plurality of branched pipes is connected and which communicates the inside of each branched pipe with the internal space, the first connection portion has an inner peripheral surface that defines a pipe connection hole to which the expansion valve-side pipe is fixed, with the expansion valve-side pipe being inserted thereto, while the second connection portion is provided with the branched pipes disposed side-by-side at intervals on a circumference of a circle around a central axis of the pipe connection hole, characterized in that the inner peripheral surface has, in a direction of the central axis, a brazing portion which is provided at a location containing an end on the side where the expansion valve-side pipe is inserted, and forms a gap (α) filled with solder for brazing between the inner peripheral surface and an outer peripheral surface of the expansion valve-side pipe, and a restricting portion for restricting inclination of the expansion valve-side pipe at the time of brazing, an inner diameter of the restricting portion is smaller than that of the brazing portion.