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, refrigeration systems, and heat exchangers where precise water regulation is essential. By responding directly to pressure changes, it ensures reliable temperature control, reduces water consumption, minimizes energy waste, and extends equipment lifespan. Its durable construction and low-maintenance design make it a dependable solution for commercial and industrial cooling systems.