Hot Water Heater Pressure Relief Valve Discharge Pipe

Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap.

Hot water heater pressure relief valve discharge pipe.

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. It s designed to release the pressure when there is too much of a load built up inside the water heater. 504 6 requirements for water heater tpr valve discharge piping. These numbers will be printed right on the valve or on a tag attached to the.

The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. Not be directly connected to the drainage system. 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. Discharge through an air gap located in the same room as the water heater.

So this release of its pressure causes your hot water tank overflow pipe dripping towards the floor where the hot water heater is placed. Not be directly connected to the drainage system. You may have an issues with the hot water coming out of overflow pipe. Top mount runoff tubes are recommend when the temperature and pressure relief valve is located on the side of the water heater.

Verify the proper valve is installed the tprv on a water heater is set to discharge at 150 psi or 210 fahrenheit. Yes part of the video i have the camera between my teeth lol you ca. This is a very simple video on how to replace add a discharge pipe on a water heater. If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure.

In most of the disasters caused by hot water heater pipe leaking from the top the trp valve is involved. The discharge piping serving a pressure relief valve temperature relief valve or combination thereof shall. Discharge through an air gap located in the same room as the water heater. Instead it is attached with a discharge pipe link with hot water heater.

Helps guard against accidental flooding and expensive repair. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations. Scalding water and steam escape the tank through the valve and tube to relieve the pressure.