Keywords：Dual function spiral exhaust collection valve, spiral automatic exhaust valve, spiral microbubble exhaust valve, spiral exhaust valve, exhaust valve manufacturer, all copper automatic exhaust valve, drain valve, and collection valve

Description：The ACOL Extwo dual function spiral exhaust dirt collection valve AS20VT/VTM series integrates exhaust and dirt removal. Choose a magnetic rod to absorb impurities such as iron filings in water. Combining specially designed air chambers, specially woven wire mesh cores, and exhaust valves into one; Effectively achieve microbubble exhaust and spiral pollution collection functions.