Taco CA Series Expansion Tanks


Taco CA Series Expansion Tanks are designed, constructed, and tested to ASME Section VIII, Div. 1 requirements. They provide a stable, tight, and closed hydronic system by utilizing a butyl rubber bladder to permanently separate the air charge from the system fluid in the expansion tank. In most properly sized “CA” systems, you can reduce the tank size by 80% compared to the old style, plain steel tanks.




  • LoadMatch® Systems
  • Commercial, Institutional, Industrial Hydronic Systems
  • Larger Systems
  • Systems where reliability and lower maintenance costs are important
  • Potable Water (optional)



  • Designed, constructed and tested to ASME Section VIII, Div. 1 requirements.
  • Heavy Duty butyl rubber bladder
  • Full acceptance bladder design (field replaceable)
  • Carbon steel construction (SS system connection optional, SS construction optional)
  • All fabrication done in house
  • Computerized selections to ensure fast and easy design
  • National Board Registration
  • CRN registration (optional)
  • NSF/ANSI 61-G Certified and Listed (Optional)



Capacity: 23-3962 Gallons (90-15000 Liters)

Diameters: 20-72″

Height: 29-282″

Working Pressure: 125,150,175, 250, 300 (PSI) Higher Pressures Optional

Max. Operating Temp.: 240°F (Optional 280°F)