Amtrol Therm-X-Trol ST-12 4.4-Gallon Potable Water Thermal Expansion Tank

Product Description

Amtrol Therm-X-Trol ST-12 is a 4.4-gallon in-line thermal expansion tank for closed potable hot-water systems. It provides space for water expansion as a water heater heats the system. The tank has a 3/4-inch stainless-steel system connection and a factory pre-charge of 50 PSIG. Its potable-water application differs from Extrol tanks used in closed-loop hydronic heating.

Specifications

• Manufacturer / Brand: Amtrol
• Model / MPN: ST-12
• Model: ST-12
• Tank / maximum acceptance volume: 4.4 / 3.2 US gallons
• Diameter / height: 11 / 15 inches
• System connection: 3/4-inch NPT male; stainless steel
• Maximum pressure / temperature: 150 PSIG / 200 F
• Factory pre-charge: 50 PSIG
• Application: Closed potable hot-water systems
• Approximate shipping weight: 9 lbs

Installation & Compatibility

Confirm the model, dimensions, connections and installation requirements against the supplied unit and manufacturer instructions. Manufacturer warranty coverage depends on the product, application and applicable written terms.

Technical Specifications

Frequently Asked Questions