Amtrol SX40V Hydronic Expansion Tank

Amtrol SX40V Hydronic Expansion Tank is designed to manage pressure expansion in closed-loop heating systems. The SX40V floor-mount expansion tank delivers dependable performance for residential and light commercial applications, featuring a floor-mount design and a 1" NPTF threaded connection for straightforward installation. It helps absorb water expansion, protects boilers and circulators, and supports stable temperatures in hydronic heating, radiant floor, and other closed-loop systems.

Perfect for radiant floor heating and general hydronic installations, this tank provides reliable pressure control, reduces pump cycling, and extends the life of your boiler and controls in both new builds and upgrades.

• Floor-mount installation for flexible placement
• 1" NPTF threaded connection fits standard piping
• Durable steel shell with protective finish for longevity
• Absorbs water expansion and stabilizes system pressure
• Suitable for residential and light commercial hydronic heating