Hot Water Heater Pressure Relief Valve Discharge Pipe Installation

Discharge through an air gap located in the same room as the water heater.

Hot water heater pressure relief valve discharge pipe installation.

This temperature pressure relief valve is attached to the discharge pipe. Yes part of the video i have the camera between my teeth lol you ca. A valve installed in any position other than vertical might not perform correctly. Verify the proper valve is installed the tprv on a water heater is set to discharge at 150 psi or 210 fahrenheit.

Mount prvs in a vertical position which means upright and with the spindle vertical. These numbers will be printed right on the valve or on a tag attached to the. 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 valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank.

It s designed to release the pressure when there is too much of a load built up inside the water heater. Step 2 hold the tpr valve with the slip joint pliers. Temperature and pressure relief valves shall be installed so that the sensing element of the valve extends into the heater tank and monitors the temperature in the top 6 inches of the heater or tank. Thread the tpr valve clockwise into the pressure relief fitting on the water heater and tighten it by hand until it is tight.

Every relief valve which is designed to discharge water or steam shall be connected to a discharge pipe. This is especially crucial for cast iron valves. Not be directly connected to the drainage system. Pressure relief valve installation mounting.

Whether you re installing a new indoor or outdoor tankless water heater or replacing a pressure release valve include a length of pvc pipe as a discharge line. For flanged valves be sure to draw the bolts down evenly. Brush pipe joint compound on the threads on the tpr valve using the brush supplied with the pipe joint compound. So this release of its pressure causes your hot water tank overflow pipe dripping towards the floor where the hot water heater is placed.

The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap.