Water Heater Pressure Relief Valve Extension Pipe

Use the first wrench to hold the tpr in place when you use the other to unscrew the drain pipe.

Water heater pressure relief valve extension pipe.

Temperature pressure relief or tpr valves are safety devices installed on water heating appliances such as boilers and domestic water supply heaters. I always advise the client that the pipe should be copper and should terminate about 6 inches from the floor. Temperature and pressure relief valves shall be installed so that the sensing element of the valve extends into the heater tank and monitors the temperature in the top 6 inches of the heater or tank. If the water heater thermostat fails to turn off at its temperature setting and continues to heat the water indefinitely the tpr valve will open and let the overheated water out.

Connect the relief valve to the opening in the water heater with a pipe wrench or an adjustable wrench measure the distance from the relief valve to the floor. But if the termination of the piping is not readily visible such as if it is located under the house the water will continue to drain until the homeowner gets an amazing electric or gas bill and goes searching for the reason. Place one wrench on the tpr valve to prevent the valve from moving a pipe wrench works well. If temperature sensors and safety devices such as tprs malfunction water in the system may become superheated exceed the boiling point.

Connect the pipe and elbow to the pressure relief valve. Pressure relief valve extension. Cut the new pipe to length. Cut lengths of cpvc pipe to match the ones you re replacing as long as they extend to within 3 inches of the floor.

All pressurized non storage type water heaters shall be provided with a pressure relief valve installed at the hot water outlet with no shut off valve between the heater and the relief valve. I explain that it was routed to a drain to prevent a mess if it discharges but that you would want to see water on the floor if it was dripping or pressure had blown off so that you know there is a. Place the other wrench on the drain tube.