Variable frequency constant pressure water replenishment unit

The volume of the water chamber of the variable frequency constant pressure water replenishment unit continues to shrink, and the capsule diaphragm continues to contract. When the water in the water chamber is almost used up, the pressure in the tank also drops to the design pressure P1. At this time, the pressure switch touches the design minimum pressure contact, and the water pump automatically starts, allowing water to be filled into the pipe network and water chamber again. Repeat the above process in this way to ensure the water supply of the water supply system. The operation process of the variable frequency constant pressure water replenishment unit and above is achieved by the pressure switch controlling the start and stop of the water pump through the electrical control box.