Featuring a two-shell welded construction, the (HGT-HGTV) series bladder expansion tanks are available in sizes ranging from 2 to 80 gallons, in either in-line or stand models. Designed for hot water, solar, and cooling systems, as well as glycol compatibility, these tanks offer added safety and energy efficiency thanks to their ability to withstand high pressure and prevent waterlogging with the EPDM bladder. A perfect solution for saving space and ensuring optimal performance.

As an expert in the heating industry, I present to you the HGTV-90 Bladder Heating Expansion Tank by Calefactio. With a remarkable 40 gallon capacity and 1-1/4 inch MNPT connection, this series of expansion tanks is made of durable steel and can withstand pressures up to 115 psi and temperatures up to 240 degrees Fahrenheit. Its overall dimensions are 41.1 inches height by 19.7 inches diameter, providing ample space for efficient heating expansion.

• Acceptance factor of 100%
• Water remains permanently separated from the air throughout the useful life of the installation
• The water does not escape the circuit
• The steel tank never comes into contact with water
• Pre-charged at the factory to 12 psi, tank need to be adjusted on site at the system operating pressure