The TPR valve is one of the essential components of a water heater. It's a robust safety mechanism that protects the unit from extensive damage 24/7. Without this element, the water heater would be a disaster waiting to happen. Let's explore the TPR valve and explain its function.
What is a TPR valve, and what is its purpose?
The TPR (temperature-pressure relief) valve is a safety component that ensures the water tank stays within its designated pressure and temperature limits. It can be found on the heater's side or top, featuring a lever that goes up and down. There's also a discharge pipe running from the valve to the lower part of the unit.
As previously mentioned, TPR valves safeguard against water heater accidents. Namely, these appliances can start shaking and turn unstable due to rising pressure inside the unit. As a result, it becomes overloaded, and the TPR valve steps in. The element automatically activates to remove excess pressure using the discharge line.
The unit can explode if the water heater lacks a TPR valve or the device isn't working correctly. Consequently, there's a considerable risk of severe injuries and extensive damage to the rest of the house.
TPR valve maintenance
Given the device's pivotal role, it needs to be maintained, inspected, and repaired regularly to avoid excessive pressure and overheating. The easiest way to identify any issues is to test the valve.
Before you start, locate the tank's shut-off valve. It should be near the cold water feed on the right-side inlet. For electric tanks, feel free to shut down the breaker. As for gas units, the gas valve needs to be set to "off" or "pilot."
Once the water supply is disrupted, begin the testing:
Ensure the discharge tube is tightly fastened. To prevent scalding, wear closed-toe shoes.
Put a bucket under the tube.
Pull the TPR's lever back to allow some water to leak into the bucket.
Let go of the lever and snap it back to the original position. If it won't snap back, the TPR valve is malfunctioning and needs replacing.
In general, TRP valves have the same lifetime as the water heater. With this testing procedure, homeowners can easily catch any problems early and avoid potentially fatal outcomes.
Nevertheless, we recommend that you exercise a lot of caution when working with water heaters. The TPR valve might have worn out over the years and turned unstable, making it unsafe to handle. Making any ill-advised moves can lead to an explosion.
Get help from the pros
To avoid unpleasant scenarios, reach out to a licensed and seasoned plumber. They'll inspect the appliance using cutting-edge tools and following all safety protocols to minimize the risk of disasters.
If you need an honest, dependable plumber in the Phoenix, Mesa, Tempe or Chandler area, call Jimmy at 480-757-1273.