TCHYGS series of automatic frequency conversion constant pressure water supply equipment is a new type of water supply equipment that combines microcomputer technology, inverter technology and motor control technology. It is an ideal product to replace high water tanks and water towers. The equipment consists of programmable controller, inverter, control circuit and pump composed of closed-loop water supply control system, fully meet the water supply system pipe network to maintain a constant pressure, making the entire water supply system always maintain the best energy efficient operation.