Water Heater Pressure Relief Valve Discharge Pipe

This pipe is responsible for routing hot water released from the tpr to a proper discharge location.

Water heater pressure relief valve discharge pipe.

How doers get more done. Local building codes vary but most require a catch pan under the water heater with a discharge pipe that ends above the rim of the pan to. In most of the disasters caused by hot water heater pipe leaking from the top the trp valve is involved. You may have an issues with the hot water coming out of overflow pipe.

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. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations. Instead it is attached with a discharge pipe link with hot water heater. Scalding water and steam escape the tank through the valve and tube to relieve the pressure.

The valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank. So this release of its pressure causes your hot water tank overflow pipe dripping towards the floor where the hot water heater is placed. If pressure builds or temperatures reach dangerous levels the valve opens up and discharges the pressure. 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.

Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap. The discharge piping serving a pressure relief valve temperature relief valve or combination valve shall. This prevents an explosion. This temperature pressure relief valve is not directly attach with the hot water pressure heater.

It s designed to release the pressure when there is too much of a load built up inside the water heater. A typical water heater has a safety device known as a relief valve and is sometimes known as a temperature and pressure valve. These numbers will be printed right on the valve or on a tag attached to the. If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure.

Attached to the relief valve is a discharge pipe. Water heater pressure relief valve hot water recirculating pump white water heater accessories rheem water heater accessories rheem 50 gal parts rheem gas igniter. Discharge through an air gap located in the same room as the water heater.