A thermal expansion tank or expansion vessel is a small tank used to protect closed (not open to atmospheric pressure) water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air, whose compressibility cushions shock caused by water hammer and absorbs excess water pressure caused by thermal expansion.
GPS Plumbing, a full service plumbing company, provides a complete line of professional thermal expansion tank:
services for most if not all types, styles, sizes, and brands. We also provide a full set of water pressure management solutions, with both offered at reasonable, equitable, and affordable prices.
We correct and fix irritating and potentially dangerous condition such as:
If expansive or high water pressure conditions exist in your home, we can:
The sooner the better when it comes to fixing an expansive water problem. Fixing the problem as soon as possible minimizes any potential damage to your water heater and water supply system.
The expansion tank relieves the pressure that builds up through thermal expansion in a closed-system by giving the excess water somewhere to go. As the water pressure increases, it pushes the diaphragm of the expansion tank down, compressing the air on the other side, creating more space for the influx of water, and relieving the building pressure of the system.
A rubber diaphragm divides the tank into two sections.
When the heating system is empty or at the low end of the normal range of working pressure, the diaphragm pushes against the water inlet; as the water pressure increases, the diaphragm moves, compressing the air on its other side.
The installation of a thermal expansion tank is recommended/required when any of the following occurs:
Thermal expansion of water in home’s water supply system can create several irritating and potentially dangerous conditions including:
When you notice, any of these conditions call GPS Plumbing.