Furnace Pressure Release Valve

For pricing and availability.

Furnace pressure release valve.

Internal pressure relief valve. Once the pressure is released and the tank pressure falls below that of the spring the valve closes. The pressure rating of the relief valve should be at least 10 psig higher than the operating pressure of the system but less than the maximum allowable working pressure mawp of the boiler. Watts lfn45b copper 3 4 in mnpt pressure reducing valve.

You don t have a pressure relief valve on your furnace. It sealed after 1 2 tries by activating the try lever. Many hydronic boilers are shipped with a 30 psig relief valve from the factory. I tried this valve camco 10471 10473 3 4 temperature and pressure relief valve with 4 epoxy coated probe and it didn t seal from the get go.

Without a properly working valve dangerous levels of temperature and or pressure may build up in a home s heating system. When the valve fully opens it initially makes a loud pop followed by a blast of released propane gas. Extreme pressure within the system could cause the boiler or water lines to rupture. In this example the relief valve should be at 40 psig or higher.

This is the most common reason why relief valves blow off on hot water heating systems step. So i chose this one. No problems to report here. This is because it is a safety valve that protects your heating system from building up too much pressure.

Fyi this says it is a rheem but it is not. If it is leaking it s because the valve is bad or you have the temperature control valve on your water. Those are on your water heater. When that happens you are faced with leaks or even the possibility of your heating system blowing up.

The pressure relief valve of your boiler is a very important part of your heating system. The pressure relief valve also as known as a blow off valve is a vital component of a boiler. Lead free calibrated pressure relief this 1 2 in. Watts 3 4 in brass female in line water pressure valve.

For pricing and availability. 32 years in the trade has taught me a few things along the road.