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.
Water heater pressure relief valve extension pipe.
I always advise the client that the pipe should be copper and should terminate about 6 inches from the floor.
Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels.
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.
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.
Place the other wrench on the drain tube.
Connect the pipe and elbow to the pressure relief valve.
Place one wrench on the tpr valve to prevent the valve from moving a pipe wrench works well.
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.
The pressure relief valve extension is plastic and has a couple of elbows leading it to a drain.
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.
Pressure relief valve extension.
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.