If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure.
Water heater tpr discharge pipe.
Scalding water and steam escape the tank through the valve and tube to relieve the pressure.
What are the code requirements for the discharge piping from a temperature pressure relief tpr valve at a water heater.
The valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank.
Yes part of the video i have the camera between my teeth lol you ca.
Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations.
The tpr valve will activate if either water temperature measured in degrees fahrenheit or pressure measured in pounds per square inch psi exceed safe levels.
Temperature pressure relief or tpr valves are safety devices installed on water heating appliances such as boilers and domestic water supply heaters.
Discharge through an air gap located in the same room as the water heater.
P2804 6 1 requirements for tpr temperature pressure relief valve discharge pipe.
The tpr valve discharge piping serving a pressure relief valve temperature relief valve or combination valve shall.
Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels.
This is a very simple video on how to replace add a discharge pipe on a water heater.
Not be directly connected to the drainage system.
Discharge pipe should extend from the water heater tpr valve and terminate within 6 from the floor surface distance and discharge location might slightly vary between some jurisdictions so check with your local code enforcement division or local licensed plumber.
1 the discharge pipe cannot be directly connected to the home s plumbing drainage system but an air gap located in the.