ASME Bladder Tanks, Storage Tanks & Pressure Vessels

ASME Thermal Expansion Tanks:

AAtanks offers three styles of ASME thermal expansion tank designs: Bladder, Full-Flow and Diaphragm. Tanks range in size from 2 to 4,000 gallons. AAtanks thermal expansion vessels are designed using a pre-pressurized vessel with an internal bladder or diaphragm to manage fluids under pressure. Custom tanks are produced to customer specifications, for high pressures and/or special materials for severe duty applications.

TXA Thermal Expansion Tanks

AAtanks TXA replaceable bladder style thermal expansion tanks are required in a closed loop heating or chilled water HVAC system to absorb the expanding fluid and limit the pressure within a heating or cooling system. A properly sized expansion or compression tank will accommodate the expansion of the system fluid during the heating or cooling cycle without allowing the system to exceed the critical pressure limits of the system.

TXA 35 to 2000 Thermal Expansion Bladder Tanks

Download TXA 35 to 2000 Thermal Expansion Bladder Tanks Submittal Form

Construction:

  • ASME Construction
  • Material: Carbon Steel or Stainless Steel (304/316)
  • System Connection: Stainless Steel
  • Bladder: Heavy Duty Butyl Rubber (NSF / FDA approved materials)
  • Factory Pre-charge: 40 PSI (field adjustable)
  • Standard Design Pressure: 150 PSI (200 PSI & 250 PSI models available)
  • Standard Design Temperatures: -20F to 240F
  • Standard Finish: Red Oxide Prime Painted
  • Interior and Exterior Epoxy Finish Available Upon Request
  • Custom Designs Available

TXA Full-Flow Thermal Expansion Tanks:

AAtanks type TXA-FF tanks are ASME replaceable bladder type pre-charged thermal expansion tanks for commercial and industrial potable hot water applications. The TXA-FF is designed as a multifunctional bladder tank for controlling system pressures in Thermal Expansion, Hydronic Expansion, and Hydro-Pneumatic applications. The TXA-FF design incorporates a unique flow through design that promotes fluid mixing. Mixing of the fluid inside the bladder tank disrupts stagnant water, preventing growth of potentially harmful bacteria colonies. The water is contained in a heavy-duty butyl bladder, preventing tank corrosion and waterlogging.

TXA-FF Thermal Expansion Tanks.

Download TXA-FF Thermal Expansion Tank Submittal Form [.pdf]

Construction:

  • ASME Construction
  • Material: Carbon Steel or Stainless Steel (304/316)
  • System Connection: Stainless Steel
  • Bladder: Heavy Duty Butyl Rubber (NSF / FDA approved materials)
  • Factory Pre-charge: 40 PSI (field adjustable)
  • Standard Design Pressure: 150 PSI (200 PSI & 250 PSI models available)
  • Standard Design Temperatures: -20F to 240F
  • Standard Finish: Red Oxide Prime Painted
  • Interior and Exterior Epoxy Finish Available Upon Request
  • Custom Designs Available

TTA Thermal Expansion Tanks:

AAtanks TTA Tanks are ASME-code diaphragm type pre-charged thermal expansion tanks. They are designed to allow the tanks air cushion to be separated from the systems water. No waterlogging of the tank can occur as the air is held between the tank wall and the outside of a bladder placed inside the tank, while the system water is contained inside the bladder. This changes the system to an air elimination system, as any air extracted from the system water is passed out of the system into the atmosphere.

TTA Thermal Expansion Tanks.

Download TTA Thermal Expansion Tank Submittal Form [.pdf]

Construction:

  • ASME Construction
  • Material: Carbon Steel
  • System Connection: Carbon Steel
  • Diaphragm: Heavy Duty Butyl Rubber (NSF / FDA approved materials)
  • Factory Pre-charge: 40 PSI (field adjustable)
  • Standard Design Pressure: 125 PSI (200 & 250 PSI available)
  • Standard Design Temperatures: -20F to 240F
  • Standard Finish: Red Oxide Prime Painted.