A properly sized diaphragm-type expansion tank allows the pressure relief valve to reach a pressure of about ____ psi lower than its rated opening pressure when the system reaches its maximum operating temperature.

Question

Quizplus · Accepted Answer

A properly sized diaphragm-type expansion tank is designed to accommodate the expansion of water as it heats up in a closed system, preventing the pressure from reaching the relief valve's opening pressure too quickly. By allowing for an expansion of about 5 psi lower than the relief valve's rated opening pressure, the system ensures that the valve only opens when necessary, preventing unnecessary release of water and maintaining system integrity.

A Properly Sized Diaphragm-Type Expansion Tank Allows the Pressure Relief