Designed for use in closed, potable hot water systems, Therm-X-Span® accepts expanded water as system temperature rises. This hot water is returned to the system when demand occurs. A thermal expansion tank, like Therm-X-Span®, is essential in a closed system to protect your water heater.
Amtrol® Therm-X-Span® Thermal Expansion Tank, In-Line, Series: T Series, 4.4 gal Tank Volume, Acceptance Volume: 3.2 gal, 150 psig, ASME Yes/No: No, 11 in Dia, 15 in Height, Drawn Steel, 40 psig Pre-Pressure Rating, 200 deg F Maximum Temperature, MNPT, 3/4 in, Urethane Topcoat, Domestic