HVAC

HVAC water system Common valves for open circulating water systems include gate valves, globe valves, butterfly valves, ball valves, check valves and Y-filters. In closed circulation water systems, some special types of valves also play an impo...

HVAC water system Common valves for open circulating water systems include gate valves, globe valves, butterfly valves, ball valves, check valves and Y-filters. In closed circulation water systems, some special types of valves also play an impo...