2019年3月7日 · 3) Each TPR valve must have its own discharge piping, not shared with any other devices or equipment. In the example below, an upper pressure relief valve drain (not visible behind vent connector) has been tied into the drain for the lower one.

2024年1月15日 · A correctly installed TPR discharge pipe directs this scalding water to discharge to a safe location to the exterior or drain location. Water heater manufacturers state that a TPR discharge pipe is required to direct hot water to the exterior or a suitable drain location.

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. The valve should be connected to a discharge pipe (also called a drain line) …

T&P valve discharge tubes: code requirements, safety hazards, installation details. This article describes the requirements for a discharge tube or drain line on temperature & pressure relief valves used on any appliance that heats water.

2023年8月1日 · The discharge piping serving a pressure-relief valve, temperature-relief valve or combination valve shall: Not be directly connected to the drainage system. Discharge through an air gap located in the same room as the water heater.

Requirements for Water Heater TPR Discharge Pipes: Must not be directly connected to the home drainage system; Must discharge through an air gap located in the same room as the water heater.; Must not be smaller than the diameter of the TPR outlet; Must not serve multiple valves;

2023年1月20日 · A discharge pipe must also be attached to the valve. As depicted in the picture below, this is a pipe that extends downward to within 6 inches of the floor. When a TPR valve opens up, it will expel scalding hot water and/or steam.

2012年9月9日 · 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. The valve should be connected to a discharge pipe (also called a drain line) that runs down the length of the water heater tank.

2022年11月14日 · The following are 13 requirements for a discharge pipe serving a TPR valve: 1) the pipe should not be directly connected to the drainage system; 2) the pipe should discharge through an air gap located in the same room as the water heater; 3) the pipe should be constructed of materials tested, rated and approved for such use;

2009年3月27日 · The valve should be connected to a discharge pipe (also called a drain line) that runs down the length of the water heater tank. This pipe is responsible for routing hot water released from the TPR to a proper discharge location.