The HGT-90 from Calefactio is an Expansion Tank (13 gal). It's a #90 bladder-type expansion tank designed for use in closed-loop hydronic and radiant heating systems. It is a direct replacement for Amtrol Extrol #90, B&G HFT-90 and Watts ETX-90 models.
|Expansion tank volume:||13.0 gallons|
|Factory pre-charge pressure:||12 psi|
|Max. Operating Pressure:||115 psi|
|Max. operating temperature:||240°F|
|System connection:||1/2" male threaded|