Water Heater Pressure Relief Valve Discharge Pipe

If pressure builds or temperatures reach dangerous levels the valve opens up and discharges the pressure.

Water heater pressure relief valve discharge pipe. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations. It s designed to release the pressure when there is too much of a load built up inside the water heater. This prevents 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.

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 valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank. Not be directly connected to the drainage system. 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.

Scalding water and steam escape the tank through the valve and tube to relieve the pressure. You may have an issues with the hot water coming out of overflow pipe. This pipe is responsible for routing hot water released from the tpr to a proper discharge location. 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. How doers get more done. In most of the disasters caused by hot water heater pipe leaking from the top the trp valve is involved. Instead it is attached with a discharge pipe link with hot water heater.

This temperature pressure relief valve is not directly attach with the hot water pressure heater. These numbers will be printed right on the valve or on a tag attached to the. Attached to the relief valve is a discharge pipe. Verify the proper valve is installed the tprv on a water heater is set to discharge at 150 psi or 210 fahrenheit.

Water heater pressure relief valve hot water recirculating pump white water heater accessories rheem water heater accessories rheem 50 gal parts rheem gas igniter. If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure. 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.