Water Heater Pressure Relief Valve Extension Pipe

Place one wrench on the tpr valve to prevent the valve from moving a pipe wrench works well.

Water heater pressure relief valve extension pipe.

Connect the pipe and elbow to the pressure relief valve. 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. Place the other wrench on the drain tube. 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.

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. Use the first wrench to hold the tpr in place when you use the other to unscrew the drain pipe. The pressure relief valve extension is plastic and has a couple of elbows leading it to a drain. Temperature pressure relief or tpr valves are safety devices installed on water heating appliances such as boilers and domestic water supply heaters.

Pcoulter patrick coulter april 25 2019 7 03pm 1. 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. I always advise the client that the pipe should be copper and should terminate about 6 inches from the floor. 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.

Cut lengths of cpvc pipe to match the ones you re replacing as long as they extend to within 3 inches of the floor. If temperature sensors and safety devices such as tprs malfunction water in the system may become superheated exceed the boiling point. 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.