Water Heater 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.

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

Cut lengths of cpvc pipe to match the ones you re replacing as long as they extend to within 3 inches of the floor. Pcoulter patrick coulter april 25 2019 7 03pm 1. Place one wrench on the tpr valve to prevent the valve from moving a pipe wrench works well. Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels.

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. 8 termination of the tpr drain pipe cannot be more than 6 inches or less than two pipe diameters above the floor ground or waster receptor flood rim level. 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. Yes part of the video i have the camera between my teeth lol you ca.

Use the first wrench to hold the tpr in place when you use the other to unscrew the drain pipe. How doers get more done. Cut the new pipe to length. The pressure relief valve extension is plastic and has a couple of elbows leading it to a drain.

Step 2 hold the tpr valve with the slip joint pliers. A trapped tpr dischage pipe is a common defect when a replacement water heater s tpr valve is lower than the original one and the installer connects to the exisitng discharge piping at the wall. If temperature sensors and safety devices such as tprs malfunction water in the system may become superheated exceed the boiling point. Brush pipe joint compound on the threads on the tpr valve using the brush supplied with the pipe joint compound.

I always advise the client that the pipe should be copper and should terminate about 6 inches from the floor.