Water Heater Pressure Relief Valve Discharge Pipe Code

Serve a single relief device and shall not.

Water heater pressure relief valve discharge pipe code.

Unlike the expansion tank which is intended to protect the piping system from pressure the tprv protects the water heater tank from experiencing. The temperature pressure relief valve tprv is an incredibly important life safety device on every water heater. The indirect or local waste piping serving a water heater temperature and pressure relief valve or water treatment device may discharge through the cover of a clear water sump so as not to adversely affect floats by means of a fixed air gap installed in accordance with subs. 6 the terminal end of the pipe shall not be threaded.

Discharge through an air gap located in the same room as the water heater. The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. Its proper functioning is the difference between a nice hot shower and an explosion. 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.

Every relief valve which is designed to discharge water or steam shall be connected to a discharge pipe. 5 no part of such discharge pipe shall be trapped or subject to freezing. If the tpr valve is on top of the water heater install a short piece of cpvc from the valve to the side of the water heater then use a 90 degree fitting to make the turn towards the floor and add a second pipe to carry the discharge down to the catch pan. 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.

Not be directly connected to the drainage system. 7 discharge from a relief valve into a water heater pan shall be prohibited. 4 discharge in such a manner that does not cause personal injury or structural damage.