Hot Water Boiler Pressure Relief Valve Leaking

Replacing the old valve with a new one.

Hot water boiler pressure relief valve leaking.

A leaking heat exchanger could allow the higher city water pressure to enter the space heating side and increase the system pressure. Extreme pressure within the system could cause the boiler or water lines to rupture. Another culprit that can cause the pressure to rise and open the relief valve is if the boiler has an indirect water which uses the boiler water to heat the domestic water using a water to water heat exchanger. Sometimes this coil will develop a pin in it and this causes pressure to seep into the boiler and leads to leaks in the pressure relief valve.

In either case start by replacing the pressure relief valve using a different brand in case the valve itself is defective. How to fix a leaky pressure relief valve or leaky tp valve on a boiler water heater or water tank what are the possible causes of leaks at these safety devices safety hazard warnings about dripping or leaking pressure relief valves how to use an expansion tank to relieve high water pressure t p valves installed on gas sidearm heaters. That depends on whether the pressure relief valve is leaking around the threads where it attaches to the hot water tank or if it is leaking out of the inside of the valve itself. The second reason a water heater relief valve leaks is the water has gotten too hot if the temperature of the water in the water heater reaches above 210 degrees f the relief valve will leak or even blow off this is why the outlet of the relief valve must be piped to about 6 inches from the ground you would not want to get a blast of 210.

Replace a defective leaking valve right away. If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start. If the water inside the unit gets too hot usually above 210 degrees or pressure builds up too high above 150 psi the water heater can become damaged or even explore. A good solution to this risk is the relief valve.

The relief valve is an important safety feature on the water heater. Special problems closed hot water system thermal. These valves may look identical but they re set to go off at 30 psi. Turn off the water to the coil and check if the pressure stops rising.

The hot water coil has developed a pin in it. Some boilers have a tankless water heater or what is also known as a hot water coil. One thing to keep in mind when doing the replacement is that. This is the water heater pressure relief valve s way of telling us that it needs to be replaced as soon as possible.