Temperature Relief Valve Hot Water Heater

All pressurized storage type water heaters and unfired hot water storage tanks shall be equipped with one or more combination temperature and pressure relief valves.

Temperature relief valve hot water heater.

If the valve is doing its job and hot water is dripping or spewing out of the tpr drain valve turn down the temperature on the water heater controller and or turn down the water pressure. 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. Standard shank water heater temperature and pressure relief valve model sp12574 13 78 13 78. 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.

Temperature and pressure relief valves are used in residential and commercial water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. Water heater temperature and pressure relief valves or t p valves are a safety feature found on all tank water heaters. The valve has a lever that can be lifted up or down and a discharge pipe that runs from the valve straight down to the bottom of your water heater. Asme ansi and csa aga approved relief valves protect the water heater from excess pressures and temperatures by discharging water.

The valve should always be in good working order to ensure the water heater is safe in the event of extreme pressure buildup. This valve allows water or steam to escape from the water heater if the temperature or pressure gets. 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. Long shank water heater temperature and pressure relief valve model sp12575b 16 19 16 19.

Rheem protech 3 1 4 in. Unlike instant water heaters where water is heated instantly a storage water heater pre heats cold water and stores it in an insulated tank so that an accumulation of hot water can be readily available to be dispensed at a moment s notice. Why is a temperature and pressure relief valve necessary for storage water heaters. The pipe leaving the relief valve should be the same diameter as the exhaust port of the valve usually 3 4 inch.

Set your store to see local availability add to cart. The temperature steam rating of a combination temperature and pressure relief valve or valves shall equal or exceed the energy input rating in btu per hour of the water heater. Here are other things to pay attention to. Free delivery with 45 order.

A temperature pressure relief valve is a valve that s located somewhere near the top of your water heater.