Corrosion-resistant valve pipe fitting

The utility model relates to a pipe fitting, in particular to a corrosion-resistant valve pipe fitting. The device comprises a water inlet pipe, a flange plate, a ball valve and a dilution assembly are sequentially arranged on the water inlet pipe, the periphery of the flange plate is wrapped with a sealing assembly, a water tank is arranged on the side, away from the water inlet pipe, of the dilution assembly, and the bottom of the water tank communicates with a drainage pipe; the flange plate is used for connecting an external clean water source into the water inlet pipe, the sealing assembly is used for sealing the flange plate, and the external water source connected into the water inlet pipe is opened and closed through the ball valve; according to the corrosion-resistant valve pipe fitting, an external clean water source is connected into the water inlet pipe through the arranged flange plate, the flange plate is sealed through the sealing assembly and isolated from external air and water, and the exter