Is a pressure-reducing valve an operating control found on a hydronic system?

A pressure-reducing valve is indeed an operating control found on a hydronic system. Its primary function is to maintain a safe and consistent pressure within the system, preventing pressure from exceeding safe limits that could cause damage or inefficiency in operation. In hydronic systems, which predominantly use water as a heat transfer medium, maintaining proper water pressure is crucial for effective heat distribution and system performance. By regulating the pressure, these valves help ensure that the system operates efficiently, enhancing both safety and energy efficiency.

While some hydronic systems may not have a pressure-reducing valve, especially simpler or smaller systems, it is common practice to include them in systems that require precise pressure control for optimal operation. This makes the presence of a pressure-reducing valve a standard feature in many hydronic heating and cooling applications.