HVAC Tanks

Pre-charged Bladder & Diaphragm Expansion Tanks ASME (B,D,B-LA)

Pre-charged Expansion Tanks contain either a bladder or a diaphragm to separate the air charge from the system water. Tanks are design to absorb the expansion forces of heating/cooling system water while maintaining proper system pressurization under varying operating conditions.

Series B

  • ASME Section VIII, Division 1 design and constructed
  • Heavy duty full acceptance replaceable butyl bladder
  • Sizes: 53 – 3,963 gallon
  • Factory pre-charge to 12 PSI, adjustable in the field
  • High pressure models up to 250 PSI available
  • Seismic restraints available
  • California-code sight glass available

Series D

  • ASME Section VIII, Division 1 design and constructed
  • Economical fixed butyl diaphragm
  • Sizes: 8 – 211 gallon
  • Vertical and horizontal designs
  • Factory pre-charge to 12 PSI, adjustable in the field
  • Seismic restraints available
  • California-code sight glass available

Series B-LA

  • ASME Section VIII, Division 1 design and constructed
  • Economical heavy duty replaceable butyl bladder
  • Sizes: 10 – 158 gallon
  • Factory pre-charge to 12 PSI, adjustable in the field–
  • Seismic restraints available
  • California-code sight glass available
Ready to select this tank as well as pumps, accessories, air/dirt separators, and PIC valves? Click below to open the new Bell & Gossett ESP-Systemwize selection tool and enter your duty points to begin selecting the most energy efficient model for your system:

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