Pre-charged Expansion Tanks contain either a bladder or a diaphragm to separate the air charge from the system water. Tanks are designed 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-charged 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-charged 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-charged to 12 PSI, adjustable in the field–
- Seismic restraints available
- California-code sight glass available
