Non-Potable Water Expansion Tank, 4.5 Gallon

This non-potable water expansion tank is for commercial and residential closed-loop hydronic heating systems. It helps accommodate hot-water thermal expansion and supports system pressure control below the relief valve setting.

The 4.5-gallon carbon steel tank has an epoxy finish and is pre-charged to 12 psi. Its expansion membrane and butyl diaphragm separate system water from the tank air charge. The tank connects to supply piping with a 1/2-inch MNPT connection and includes a 0.302-32 charging valve connection for on-site charging. Maximum working pressure is 75 psi (5.3 bar).

Key Features:

• 4.5-Gallon Capacity: Provides expansion volume for compatible closed-loop hydronic heating piping.
• Pre-Charged at 12 PSI: Provides an initial air charge for system setup.
• Membrane and Butyl Diaphragm: Keeps water separated from the tank air charge and helps minimize air-charge loss.
• 1/2-Inch MNPT Connection: Allows connection to compatible supply piping.
• Charging Valve Connection: Supports on-site tank charging to meet system requirements.
• 75 PSI Maximum Working Pressure: Supports operation in systems within the stated pressure limit.

Choose this tank for compatible non-potable, closed-loop hydronic heating applications that require a 4.5-gallon expansion tank with a 1/2-inch MNPT system connection.

No additional information available.