Amtrol EX-30 Extrol Expansion Tank 2.0 Gallon 1/2" NPT Connection

The Amtrol EX-30 Extrol expansion tank is a compact, diaphragm-style expansion tank designed for hydronic heating systems. With a 2.0 gallon capacity, this tank helps control pressure fluctuations in closed-loop heating systems by absorbing excess water volume as it expands during heating cycles.

Key Features:

• 2.0 gallon total volume capacity for residential and light commercial applications
• 1/2" NPT male connection for easy installation
• Pre-pressurized to 12 PSI at factory for immediate use
• Butyl diaphragm separates system water from air charge, preventing waterlogging
• Maximum working pressure of 150 PSI
• Maximum working temperature of 240°F
• Heavy-duty steel construction with protective coating
• Replaceable air valve for field adjustment

The Extrol design prevents air absorption into system water, eliminating the need for frequent tank maintenance. The fixed diaphragm construction ensures reliable, long-lasting performance in residential boiler systems, radiant heating applications, and other closed-loop hydronic systems. Model 102-1 is ASME-certified for quality and safety compliance.