The Johnson Controls V46AC-1 Pressure-Actuated Water-Regulating Valve is a mechanical control device designed to regulate water flow based on system pressure. It automatically modulates water supply to maintain stable operating conditions, helping prevent overheating and improving equipment efficiency. This valve is commonly used in HVAC applications such as chillers, condensers, refr... https://www.partshnc.com/3470260-acth2o-regvlv