ACUF-050-AC-2 - Accu-Flo Balancing Valve - 1/2" SweatTaco ACUF 050 AC 2 Accu Flo Balancing Valve 1 2" Sweat The Taco Accu Flo Balancing Valve with a bronze body and sweat connections delivers precision flow control for hydronic systems in a compact, easy to service design. Ideal for HVAC and plumbing applications requiring consistent, accurate flow balancing, this valve uses a modified Venturi design to measure flow independently of stem and ball position. Unlike conventional variable orifice valves,