Relief Valves

(1)  Temperature relief, pressure relief, combined temperature and pressure relief and vacuum relief valves shall conform to ANSI Z21.22 / CSA 4.4, “Relief Valves for Hot Water Supply Systems”.

Article Ontario Regulation 332/12 Building Code, Information published by for educational purposes only

Note: The water tank relief valve is a safety device that prevents the pressure inside the water tank from rising to dangerous levels. The water tank relief valve is an important component of every water storage system, and it should be installed according to the installation requirements of the manufacturer.