Warranty
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103103
BACKFLOW
PREVENTERS
BACKFLOW PREVENTERS
ACCESSORIES STRAINERS
AUTOMATIC
CONTROL VALVES
PRESSURE
REDUCING VALVES
FIRE
PROTECTION VALVES
THERMOSTATIC
MIXING VALVES RELIEF VALVES
MISCELLANEOUS
PLUMBING PRODUCTS REPAIR KITS
APPLICATIONS
Designed for installation on hot water systems to
protect against thermal expansion.
FEATURES
• 3.5 gal. – 90.0 gal.
• 150 psi max, factory air pre-charge – 40 psi
• 240°F max
• Fixed bladder type for commercial and industrial
applications
APPROVALS AND APPLICABLE
STANDARDS
• ASME Section VIII
SIZE (GAL)
LEAD-FREE
PART NUMBER
LEAD-FREE
LIST PRICE EA.
WTTA: ASME THERMAL EXPANSION TANK, 3/4" FNPT
WTTA- 1,964.30
WTTA- 2,261.00
WTTA- 2,513.80
WTTA: ASME THERMAL EXPANSION TANK, 1" FNPT
WTTA- 2,835.20
WTTA- 3,028.20
WTTA- 3,689.20
WTTA- 3,913.70
WTTA- 4,427.90
WTTA- 4,941.80
WTTA: ASME THERMAL EXPANSION TANK, 1½" FNPT
WTTA- 5,453.80
WTTA- 5,966.60
WTTA- 6,262.70
TYPICAL INSTALLATION
T&P VALV
E
TP1100A
DIRECTION OF FLOW
HOT WATER
HEATER
MODEL WTTA
MODEL NR3XL
WATER PRESSURE
REDUCING VALVE
MODEL 975XL2
T&P VALVE
TP1100A
DIRECTION OF FLOW
HOT WATER
HEATER
MODEL WTTA
MODEL 195
HOSE BIBB
MODEL NR3XL
WATER PRESSURE
REDUCING VALVE
MODEL 975XL2
MODEL 195
HOSE BIBB
WTTA SERIES – ASME THERMAL EXPANSION TANK
APPLICATIONS
Designed for installation on residential and commercial
hydronic heating and cooling systems as a means of
pressure control due to thermal expansion.
FEATURES
• 2.1 gal. – 13.5 gal.
• 115 psi max, factory air pre-charge – 12 psi
• 240°F max
SIZE (GAL)
LEAD-FREE EXEMPT
PART NUMBER
LEAD-FREE EXEMPT
LIST PRICE EA.
HXT: HYDRONIC EXPANSION TANK, 1/2" MNPT
HXT- 96.30
HXT- 141.00
HXT- 273.60
HXT: HYDRONIC EXPANSION TANK, 1" MNPT
HXT- 434.90
TYPICAL INSTALLATION
I
NLET
TO SYSTE
M
CHECK
FLOW
AIR VENT &
TANK
MODEL HXT
EXPANSION
AIR SCOOP
PRESSURE
RELIEF VALVE
MODEL
P3000CI or P3000BR
FILL
VALVE
AUTO
BOILER
DRAIN
HXT SERIES – HYDRONIC EXPANSION TANK