ACOL Exair X (AS10 Series) Microbubble Air Vent Valve utilizes a specialized venting structure design. A positive stop mechanism limits the float ball's travel at the top, maintaining a fixed clearance between the float and valve cover. This critical feature: Blocks impurity clogging – Prevents floating debris from obstructing the vent seat; Eliminates leakage – Stops water dripping from the vent port; Ensures reliability – Guarantees stable microbubble venting in harsh water conditions. The high-volume chamber further dampens pressure surges during operation.