Hot Water Tank Pressure Relief Valve Drain Pipe

In the future follow these steps to drain a water heater.

Hot water tank pressure relief valve drain pipe.

Place a bucket under the discharge pipe connected to the valve to collect any water and open the t p valve. This can also occur when the outside temperature rises such as on hot summer days. Be of a size at least equal to the size of the outlet of the valve. Scalding water and steam escape the tank through the valve and tube to relieve the pressure.

If the water heater thermostat fails to turn off at its temperature setting and continues to heat the water indefinitely the tpr valve will open and let the overheated water out. The ptr valve is a safety mechanism designed to prevent your hot water tank. The temperature pressure relief valve or tpr valve on any heated appliance that contains water such as a heating boiler hot water tank water heater water cylinder must have a drain line or discharge tube properly installed routed and made of proper materials. The tpr valve will activate if either water temperature measured in degrees fahrenheit or pressure measured in pounds per square inch psi exceed safe levels.

If the pressure in the tank exceeds 150 psi or the temperature exceeds 210 degrees fahrenheit the tpr valve opens to release the pressure. The requirements of the relief valve discharge pipe are that is must. Temperature pressure relief valve discharge tubes drain lines their piping. The valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank.

Is designed to open and discharge sufficient water from the tank to keep the temperature of the water inside the tank from exceeding 99 c 210 f relief valve discharge pipe. Check the pressure relief valve. So this release of its pressure causes your hot water tank overflow pipe dripping towards the floor where the hot water heater is placed. But if the termination of the piping is not readily visible such as if it is located under the house the water will continue to drain until the homeowner gets an amazing electric or gas bill and goes searching for the reason.

During the heating cycle the ptr valve discharges drops of hot water to the drain line in order to relieve the pressure generated by overheating. Building codes require temperature pressure relief tpr valves with discharge pipes on all new water heater installations. This pipe is responsible for routing hot water released from the tpr to a proper discharge location. It s designed to release the pressure when there is too much of a load built up inside the water heater.

When no water exits the discharge pipe from the t p valve close the drain valve and remove the garden hose. The valve should be connected to a discharge pipe also called a drain line that runs down the length of the water heater tank.