Water Heater Pressure Relief Valve Pipe

A typical water heater has a safety device known as a relief valve and is sometimes known as a temperature and pressure valve.

Water heater pressure relief valve pipe.

The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. There are numerous possible reasons your water heater s pressure relief valve leaks. Thread the tpr valve clockwise into the pressure relief fitting on the water heater and tighten it by hand until it is tight. This prevents an explosion.

The temperature pressure relief valve is basically attached with your hot water heater and controls or maintains pressure of the water. 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. A good solution to this risk is the relief valve. Attached to the relief valve is a discharge pipe.

Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. 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. Tprs are designed to automatically release water in the event that pressure or temperature in the water tank exceeds safe levels. Discharge through an air gap located in the same room as the water heater.

Brush pipe joint compound on the threads on the tpr valve using the brush supplied with the pipe joint compound. 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. Water heaters come equipped with a temperature and pressure relief valve also known as a tprv. 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.

If pressure builds or temperatures reach dangerous levels the valve opens up and discharges the pressure. When the excessive pressure is built inside the hot water heater this temperature pressure relief valve helps in relieving pressure of the water. Not be directly connected to the drainage system. Step 2 hold the tpr valve with the slip joint pliers.

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. The former are generally limited to tankless water heaters and other equipment with built in overheat protection. Do you need a licensed plumber.