The 140N738 from Amtrol is a Therm-X-Trol ST-8 Thermal Expansion Tank (3.2 gal volume). It's designed to control pressure build-up in closed, hot water systems. Equipped with the thickest diaphragm that provides extra strength and flexibility. Polypropylene tank liner provides 100% corrosion resistance and complies with NSF International Standard for clean and safe water storage.
Materials of Construction:
|Maximum Working Pressure:||150 PSIG (10.3 bar)|
|System Connection (NPTM):||3/4"|
|Tank Height x Diameter:||15" x 9" (381 mm x 229 mm)|
|Tank Volume 3.2 Gal (12 Lit);</li>||200°C (93°C)|