Florida Home Inspector Practice Test

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Pressure-reducing valves in hot-water heating systems are generally set at what psi?

  1. 5-10 psi

  2. 12-22 psi

  3. 25-30 psi

  4. 35-40 psi

The correct answer is: 12-22 psi

In hot-water heating systems, pressure-reducing valves are typically set to maintain a pressure within the range of 12 to 22 psi. This range is crucial for optimal system performance and safety. By maintaining this pressure, the valve ensures that the water can circulate effectively through the heating system without overwhelming it. Setting the pressure too high can result in excessive strain on the system components, which may lead to leaks or failures, while setting it too low can cause insufficient water flow, leading to inadequate heating. Thus, the 12 to 22 psi range strikes a balance that allows for reliable operation and longevity of the heating system.

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