Closed-loop hydronic systems remain constantly full and under pressure, yet must be able to safely support the expansion of water as it heats. These expansion tanks connect off the main piping to provide that function without reducing system pressure.
- Horizontal, available in 24-, 40- and 60-gallon sizes. Air control valve included.
- An optional kit is available to mount these tanks over one end of a Hi Delta unit. These kits are available for Hi Delta sizes 302B-2342B only.