Residential Water Expansion Tank

At the bottom there is a threaded pipe connection.

Residential water expansion tank.

A water heater expansion tank is an additional small thank that is attached to your water heater unit. So when the water pressure gets too high it will flow into your expansion tank instead of damaging your home s plumbing valves fixtures and joints and potentially causing a. As the system pressure increases water enters the polypropylene lined water chamber of the tank expanding a diaphragm into. Expansion tanks are designed to safely absorb the excess water created and prevent relief valves from triggering.

When water is heated it expands due to a phenomenon known as thermal expansion. All water heaters regardless of whether they use heating oil natural gas or propane or even electricity can suffer the negative effects of thermal expansion as the cold water coming into the tank turns to hot heated water increasing the overall water volume via expansion and increasing pressure inside the tank. Xt 8 thermal expansion tank is the 2 gal. Most expansion tanks are set to a pre charge of 20 psi when they leave the factory while the majority of residential water systems have significantly higher water pressure than that.

Usually they are the same size as basketball depending more or less on the size of the water heater they. What is a thermal expansion tank like. Before new plumbing regulations came into existence excess water from water heaters flowed back into the municipal water supply causing contamination. A residential plumbing system should be able to handle water pressure between 40 60psi.

How to install a residential expansion tank. To determine whether you need an expansion tank on your water heater you first need to understand what type of water heater you have what an expansion tank is and what size of an expansion tank you may need. We offer a range of expansion tanks for potable and non potable applications. Xt 8 thermal expansion tank is utilized on potable water lines between the backflow preventer or pressure reducing valve and the water heater for protection against water thermal expansion in residential applications.

Prevent permanent damage to your water heater with an expansion tank. At the top it has an air valve like the one seen on most tires called schrader.