Temperature And Pressure Relief Valve Hot Water Heater

Sometimes an additional t p relief valve with a lower temperature and pressure rating typically 180 and 100 psi is installed in a plastic hot water distribution system to protect the piping system itself.

Temperature and pressure relief valve hot water heater.

Fixing a sticky t p valve. 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. Temperature and pressure relief valves. 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.

The last line of defense for pressurized equipment temperature and pressure t p relief valves protect equipment from excess pressure and ultimately catastrophic failure. This valve allows water or steam to escape from the water heater if the temperature or pressure gets. Asme ansi and csa aga approved relief valves protect the water heater from excess pressures and temperatures by discharging water. 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.

Make sure that the water temperature setting is in the normal recommended range about 120 degrees f or no more than about 150 degrees f. Each pressure relief valve is tested for top plumbing performance quality and efficiency before it leaves our factory. The temperature and pressure relief valve tpr valve opens to release pressure buildup in the water heater when the temperature or the pressure get dangerously high preventing a possible explosion. 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.

A buildup of mineral salt rust and corrosion can cause a tpr valve to freeze up and become nonoperational. Most valves are rated at 150 psi and 210 f but their capacity ratings vary greatly. We have a full line of products in multiple sizes pressure ratings and inlet outlet types. Cash acme is an industry leader in producing temperature pressure t p relief valves for water heaters or hot water storage tanks.