The Dior Pressure-Free Variable Frequency Water Supply Equipment is a new type of clean, hygienic, and energy-saving water supply system, also known as a pipeline superimposed water supply equipment. The equipment features a fully enclosed structure and does not require the construction of any water tanks, thereby preventing secondary water pollution. It directly connects a food-grade stainless steel surge tank, serving as an incoming water storage and buffering device, to the municipal water pipeline. By fully utilizing the existing pressure of the water supply network, the Pressure-Free Variable Frequency Water Supply can opt for smaller pumps, variable frequency drives, and related electrical components under the same water supply requirements. Additionally, during low-flow water usage at night, it can supply water directly using the municipal water pressure without the need to activate the pump.