Amtrol 90 Hydronic Expansion Tank

Amtrol 90 Hydronic Expansion Tank delivers dependable expansion control for closed, non-potable hydronic heating systems. This in-line hydronic expansion tank features a 14-gallon capacity, a 15" diameter by 21" height steel body, and a urethane top coating built to resist corrosion and wear under high temperatures and pressures.

Designed for long-term reliability, the diaphragm uses heavy-duty Butyl/EPDM for durable expansion performance. The tank is factory pre-charged with 12 PSIG air, with a 100 PSIG maximum working pressure and a 240°F temperature rating. Inlet/outlet connections are 1/2 in. male threaded on both ends.

• Inlet/Outlet: 1/2" male threaded x 1/2" male threaded
• Tank material: Urethane top-coated steel
• Diaphragm: Heavy-duty Butyl/EPDM
• Air charge: Factory pre-charged at 12 PSIG
• Capacity and dimensions: 14 gallon, 15" diameter x 21" height
• Temperature and pressure: 240°F, 100 PSIG
• Included components: Projection welded air valve, automatic air vent, air purger, steel system connection
• Lead-free construction and certifications: IAPMO R&T, ISO 9001
• Warranty: 5-year