The Y-type reducing copper tee fitting is made of T2 high-purity copper with thickened forging, and is the core accessory for reducing diameter branching in pipeline systems. Its unique Y-type structure design allows smooth flow channel transition, reducing fluid resistance by more than 30% compared with traditional tees, effectively reducing pressure loss. The flared socket is formed by precision molds, with standardized insertion depth, adapting to plug-in connection of copper pipes of different diameters. During welding, the solder fills evenly, with excellent sealing performance. The thickened pipe wall design increases the pressure-bearing capacity of the fitting to 1.5 times that of ordinary fittings, which can withstand 1.6MPa working pressure. Applicable to air conditioning refrigerant diversion, medical gas delivery and other scenarios, the standardized interface is compatible with mainstream pipeline systems, no additional reducing accessories are needed during installation…