Water Heater T P Valve

Rheem protech 4 1 4 in.

Water heater t p valve.

Close the shutoff valve on the cold water inlet line that fills the water heater. Shank temperature and pressure relief valve for electric and gas water heaters model sp8346 16 24 16 24. Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels. Therefore a water heater with a mawp of 160 psi still requires a t p relief valve set at 150 psi even though the vessel is designed and built to withstand a higher pressure.

Asme ansi and csa aga approved relief valves protect the water heater from excess pressures and temperatures by discharging water. Every water heater whether gas or electric needs a temperature and pressure relief valve because without one it could begin to leak or even explode. On the side or top of your water heater tank is a valve connected to a metal or plastic discharge tube pointing downward. The t and p valve which is located on the.

Brass nclx a temperature and pressure relief valve model 21714 0150. Set your store to see local availability add to cart. 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. Free delivery with 45 order.

Here s how to replace a water heater temperature pressure relief valve. Temperature pressure relief or tpr valves are safety devices installed on water heating appliances such as boilers and domestic water supply heaters. 1 shut off the cold water to the water heater and gas or electricity that heats the water heater. Another good thing is this is a very reasonable price you won t beat at big box stores.

2 drain the water from the tank until the water level is below the valve s location. Another factor in determining the pressure rating of the t p relief valve is the code itself. 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. Cash acme 3 4 in.

The valve is called a t p valve or tpr valve for temperature and pressure relief. If all goes well a tpr valve never gets used except during testing. This device is an absolutely critical safety item so you want the best. It s a good idea to test yours annually and replace every so often.

This is probably the most common t p relief valve in america. Model codes require the t p relief valve be set no higher than 150 psi.