Water Heater Safety Valve

It s an easy appliance to take for granted.

Water heater safety valve. Low pressure propane gas 5 8 18unf safety control valve with thermocouple and knob switch for bbq grill or fire pit heater or gas water heater 4 0 out of 5 stars1 21 39 21 39 get it as soon as tue sep 15. Pilot operated relief valves are a specialized type of pressure safety valve. 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. Also known as the t p or tpr valve this special.

The wags automatic water heater safety shut off valve is the one shot wonder the original. An example of safety valve is a pressure relief valve prv which automatically releases a substance from a boiler pressure vessel or other system when the pressure or temperature exceeds preset limits. Proper maintenance should include periodic testing of this valve. A safety valve is a valve that acts as a fail safe.

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. In fact most people don t think about their water heater at all. If you don t regularly maintain your water heater then it shouldn t a surprise when something goes wrong out of the blue. Or it could be a sign that the pressure relief valve itself is not closing properly in.

Among the various safety features built into a modern hot water heater perhaps the most important is the temperature and pressure relief valve. When water is heated up inside of a water heater thermal expansion causes the pressure inside of the tank to build up. When water is coming out of the pressure relief valve on your water heater it could signal that too much pressure is building up inside the water heater which is what the valve is designed for due to the burner or element not cutting off in which case the water heater needs to be repaired or replaced. It sits in a closet in your garage or somewhere else out of site in your home and quietly does it s job.

In the event that the temperature of the water in the tank rises above a preset value usually 210 degrees fahrenheit or the pressure rises above 150 psi the valve opens thereby averting a possible explosion. Water heater safety is rarely something you think about. An important safety component of your water heater the temperature and pressure relief valve is required by every plumbing code.