Water Heater Pressure Relief Valve Pipe

This prevents an explosion.

Water heater pressure relief valve pipe.

The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. A typical water heater has a safety device known as a relief valve and is sometimes known as a temperature and pressure valve. Do you need a licensed plumber. Attached to the relief valve is a discharge pipe.

Discharge through an air gap located in the same room as the water heater. Not be directly connected to the drainage system. If pressure builds or temperatures reach dangerous levels the valve opens up and discharges the pressure. The relief valve is an important safety feature on the water heater.

Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. Brush pipe joint compound on the threads on the tpr valve using the brush supplied with the pipe joint compound. Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels. Temperature pressure relief or tpr valves are safety devices installed on water heating appliances such as boilers and domestic water supply heaters.

If the water inside the unit gets too hot usually above 210 degrees or pressure builds up too high above 150 psi the water heater can become damaged or even explore. Pressure relief valves used for hot water heaters and storage tanks can generally be divided into 2 main categories pressure only relief valves and t p temperature and pressure relief valves. There are numerous possible reasons your water heater s pressure relief valve leaks. Water heaters come equipped with a temperature and pressure relief valve also known as a tprv.

Step 2 hold the tpr valve with the slip joint pliers. Thread the tpr valve clockwise into the pressure relief fitting on the water heater and tighten it by hand until it is tight. The temperature pressure relief valve is basically attached with your hot water heater and controls or maintains pressure of the water. A good solution to this risk is the relief valve.

8 termination of the tpr drain pipe cannot be more than 6 inches or less than two pipe diameters above the floor ground or waster receptor flood rim level. A trapped tpr dischage pipe is a common defect when a replacement water heater s tpr valve is lower than the original one and the installer connects to the exisitng discharge piping at the wall. 1 either the water pressure inside the tank is too high 2 the water temperature is too high 3 the t p valve hasn t been used in a few years 4 the wrong t p valve was installed or 5 the t p valve itself has failed.