Non-negative pressure pipe network pressurized steady flow water supply equipment is widely used in life, firefighting, production, spray fields, etc. The water supply equipment is directly connected with the water supply network, and the combination of the regulator tank regulating the energy storage and variable-frequency regulating speed technology is used to implement the secondary pressurization without changing the original pressure, thus saving energy and reducing consumption. It can guarantee to supplement and supply end-users in time when the water consumption is large in a short time, and play the function of stabilizing and regulating the flow. Non-negative pressure pipe network pressurized steady flow water supply equipment is modular skid installation in the factory. Its optimized mechatronics design can save investment with small floor space and save installation costs.