Water Heater T And P Valve

The valve is called a t p valve or tpr valve for temperature and pressure relief.

Water heater t and p valve.

2 drain the water from the tank until the water level is below the valve s location. This valve may sit quietly unnoticed on your water heater but it has a very important purpose. It can potentially prevent your water heater from exploding. If your valve is dripping that may be a.

The last line of defense for pressurized equipment temperature and pressure t p relief valves protect equipment from excess pressure and ultimately catastrophic failure. If you make a service for a long day you will spend a lot of money. Asme ansi and csa aga approved relief valves protect the water heater from excess pressures and temperatures by discharging water. The t and p valve which is located on the top or side of the tank opens and releases water or steam when the temperature or pressure exceed preset limits.

The t p relief valve short for temperature pressure relief valve is a critical safety device on your water heater. To keep your heater from exploding. T p valves used on residential water heaters are typically designed and manufactured to relieve pressure at 150 psi and temperature at 210 degrees f. You have to buy a new product.

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. Here s how to replace a water heater temperature pressure relief valve. You can t repair this problem so you should replace it. If all goes well a tpr valve never gets used except during testing.

Replacing t p valve on a water heater is the best way when you find big trouble and broke in the cap rubber and the other part of the valve. Close the shutoff valve on the cold water inlet line that fills the water heater.