Expansion Tank

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

Feature:
Series B

Designed and constructed according to ASME Section VIII, Division 1
Heavy duty full acceptance replaceable butyl bladder
Sizes: 10 – 3,963 gallons
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
Integrated bladder integrity monitor included on all tanks

Feature:
Series D

Designed and constructed according to ASME Section VIII, Division 1
Economical fixed butyl diaphragm
Sizes: 8 – 211 gallons
Suitable for both vertical and horizontal installations
Factory pre-charge to 12 PSI, adjustable in the field
Seismic restraints available
California-code sight glass available
Integrated diaphragm integrity monitor included on all tanks

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.