HVAC Expansion Tanks
Diaphragm & Bladder Expansion Tanks for Closed-Loop HVAC and Hydronic Systems
Product Description
AquaX HVAC Expansion Tanks are engineered to manage thermal expansion in closed-loop hydronic and HVAC systems by maintaining stable system pressure and protecting critical equipment. As water heats and expands, the tank absorbs excess volume to prevent pressure spikes, reduce stress on pumps and piping, and extend overall system life. Designed for durability and long-term reliability, AquaX expansion tanks are ideal for data centers, commercial buildings, central plants, and industrial facilities where system stability and uptime are critical.
Key Features
- Heavy-duty diaphragm or bladder design
- Butyl (standard) or EPDM bladder options
- Pre-charged for consistent pressure control
- Available in 304 stainless steel or carbon steel construction
- Acid-pickled interior with polished exterior (stainless models)
- Maintenance-friendly design
Technical Specifications
| Tank Volume Range | 10–2,000+ gallons |
|---|---|
| Pressure Rating | Up to 125 PSI (higher pressure available upon request) |
| Temperature Range | -20°F to 240°F |
| Orientation | Vertical or horizontal |
| Certification | ASME or ASME U-Stamp available |
Warranty
(2) Year Repair or Replace WarrantyComparable Brands
SpirothermWesselsTacoWattsAmtrolBell & Gossett
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Engineering support and pricing for HVAC Expansion Tanks on projects across the U.S.