Therm-X-Trol ST-12 Thermal Expansion Tank w/ InSight Indicator (4.4 Gal Volume)

Description

Amtrol ST-12 (Therm-X-Trol) is a water heater expansion tank, designed for use in domestic hot water heating systems to eliminate the potential hazards of water expansion. Water heater expansion tank is commonly installed in a domestic hot water system that contains a backflow preventer, a check valve or a pressure reducing valve. The patented InSight Indicator Cap changes its color when the tank needs to be replaced.

Applications:
Residential water heaters, laundromats, dormitories, office/apartment buildings, restaurants, etc.

Features:

• Eliminates the waste of energy and water, thus saving money;
• Protects the water heater and plumbing fixtures from premature failure;
• Reduces potential safety hazards associated with thermal expansion;
• Prevents a dangerous pressure build-up in the system;
• Prevents the relief valve from going off;
• Therm-X-Trol brand is the #1 choice of Professional Installers;
• NSF/ANSI 61®, IAPMO, SBCCI & City of Los Angeles listings.

Technical Specifications:

• Factory pre-charged 40 psig
• System connection: 3/4″ male threaded
• Stainless steel system connection
• Max. operating temperature: 200F
• Max. operating pressure: 150 psi
• Expansion tank volume: 4.4 gallons
• Max. acceptance factor: 0.73
• Height: 15″
• Diameter: 11″
• Shipping weight: 9 lbs.

Warranty:
5-year manufacturer’s warranty.