Amtrol ST-5 Thermal Expansion Tank

The Amtrol ST-5 Thermal Expansion Tank is an in-line device designed for closed potable water systems. This Amtrol ST-5 Thermal Expansion Tank is a 2-gallon, pre-charged unit offering reliable expansion control with a heavy-duty butyl diaphragm and antimicrobial lining.

Constructed with urethane top-coated steel and an antimicrobial inner lining, it resists corrosion while delivering dependable performance in potable water applications. It features 1-1/4" female threaded inlet and outlet connections, and is rated for temperatures up to 200°F and pressures up to 150 PSIG.

• In-Line thermal expansion tank for closed potable water systems
• 2 gallon capacity; 8" diameter x 13" height
• Inlet/Outlet connections: 1-1/4" female threaded x 1-1/4" female threaded
• Tank material: urethane top-coated steel; antimicrobial inner lining
• Diaphragm: heavy-duty butyl; factory pre-charged air at 50 PSIG
• Temperature rating: 200°F; Pressure rating: 150 PSIG
• Includes: projection welded air valve, turbulator water circulator, stainless steel system connection
• Lead-free; NSF/ANSI 61; IAPMO R&T; ISO 9001
• Warranty: 5-year