This hot fill valve is specifically designed for atmospheric pressure with reflux filling. It is installed on the valve mounting plate. During filling, the valves remain stationary while the bottles move up and down in a straight line. During filling, the material enters the filling valve through the liquid inlet core 1. Then, after the spring pushes against the bottle cap placed on the bottle mouth, the material is injected into the bottle. The air in the bottle is discharged through the empty cavity formed by valve core 5 and liquid inlet core 1 via the liquid return joint 2. Once the bottle is filled with the material, any excess material also flows back into the reflux tank through this cavity. In the non-filling state, the filling valve achieves sealing under the action of the spring. Sealing rings are used at all possible connections with the outside in this component. If any material leakage is found during the production process, please first consider whether the sealing components are damaged. During the CIP (Cleaning in Place) process, the cleaning solution flows into the cleaning dummy cup 4 through the liquid inlet core and then returns via the liquid return joint to the reflux tank, ensuring that all areas through which the material passes can be cleaned.