Designed for installation on potable water lines between the backflow preventer or pressure reducing valve and the water heater to protect against water thermal expansion. When system pressure increases, water enters the tank�s polypropylene lined water chamber which expands a diaphragm into a pre-charged air chamber, keeping system pressure below the relief valve setting.
Zurn-Wilkins Expansion Tank XT-8 (2.1 Gallon Volume)
Max Working Pressure:150 psig
Max Operating Temp:200 F
Tank Diameter:8 inches
Tank Height:10-1/2 inches