1. Level Filling: Utilizes low vacuum negative pressure filling to effectively prevent foaming of the liquid being filled.

2. Longevity: The filling valve features a precise structure and minimal sealing parts, ensuring reliability and durability.

3. Spray-type Filling: During the filling process, the liquid flows down the inside wall of the container, effectively preventing foaming caused by liquid impact on the bottle bottom.

4. Maintenance: The filling valve has a simple structure, making it easy to disassemble and clean.