Description
The Xylem-Bell & Gossett 116298 Pressurized Expansion Tank 7.8 Gallon ASME D-15 is a compressed hydronic component that is used in HVAC systems to absorb thermal expansion of water in closed-loop units, stabilize the pressure and minimize the cycling of relief valves. Its vessel has a diaphragm to separate air and water such that it can accept the changes in volume as the temperature of the water fluctuates. In residential and light commercial systems, it is installed in boilers, chillers or heat exchangers, and it is connected to supply and exchange piping to eliminate out the changes in pressure.
