Mixing control valves, also known as 3-way mixing valves, are designed to blend two different media streams into a single outlet. Featuring two input ports and one output port, these valves allow the controlled mixing of fluids or gases, such as hot and cold water, oil, or steam. A common application is in HVAC systems where a mixing valve regulates water temperature by adjusting the proportions of hot and cold water entering the system. This ensures that the mixed output meets the desired temperature requirements, providing precise control and enhancing system efficiency.