Replaceable Bladder Tanks
This list includes hydropneumatic, expansion, and thermal expansion tanks.
ASME Tanks
Wessels manufactures expansion tank products built in accordance with the ASME boiler and pressure vessel code.
Expansion Bladder Tanks
NLA Series (ASME)
The NLA are the industries broadest line of bladder style tanks. NLA Expansion Bladder Tanks:
- Built in accordance with the ASME boiler and pressure vessel code
- Heavy-duty replaceable Butyl bladder
- Sizes range from 10 to 4,000 gallons
- Working pressures of 125 PSI (std), 200 and 250 PSI
NLA 35-800L
NLA 1000-15000
NLAP Series (ASME)
NLAP Expansion Bladder Tanks:
- Built in accordance with the ASME boiler and pressure vessel code
- Top system connection design
- Heavy-duty replaceable Butyl bladder
- Sizes range from 11 to 290 gallons
NLAP Submittal
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Thermal Expansion Tanks
TXA Series (ASME)
- The TXA’s are the industries broadest line of bladder style tanks.
- Heavy-duty replaceable Butyl bladder
- Sizes range from 10 to 528 gallons
- Working pressures of 125 PSI (std), 200 and 250 PSI
- Built in accordance with the ASME boiler and pressure vessel code
The TXA bladder style tanks boast many advantages over other style thermal expansion tanks.
- Can be easily replaced in the field
- Free standing models have a system connection at the bottom of the tank
- Designed to prevent any harmful build-up of dirt, grit or system contaminants
- Easy draining to assist in establishing proper air charge
TXA Submittal
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Hydropneumatic Bladder Tanks
FXA Tanks (ASME)
The FXA’s are industries broadest line of bladder style tanks.The FXA Series hydropneumatic tanks:
- Built in accordance with the ASME boiler and pressure vessel code
- Heavy-duty replaceable Butyl bladder
- Sizes range from 10 to 4,000 gallons
- Working pressures of 125 PSI (std), 200 and 250 PSI.
FXA 35-800L
FXA 700
FXA 1000-15000
Stainless Steel Model SSFXA
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Non-ASME Tanks
NL Series (Non-ASME)
NL Expansion Bladder Tanks:
- Heavy-duty replaceable Butyl bladder
- Sizes range from 2 to 132 gallons
NL Submittal
TX Series (Non-ASME)
The TX Series tanks are designed for use in low pressure residential systems and in light commercial systems where ASME construction is not required.
- Heavy-duty replaceable butyl bladder
- Sizes range from 2 to 80 gallons
- Factory pre-charged to 40 PSIG (field adjustable)
- Rated for 200°F operation
TX Submittal
FX Tanks (Non-ASME)
The FX Series Hydropneumatic Tanks:
- Heavy-duty replaceable Butyl bladder
- Sizes range from 2 to 528 gallons
FX Submittal