Owner`s manual
Expansion Tank Kits
Honeywell Water Product Solutions
52 customer.honeywell.com 63-8702
TX Series Combo Tank Kits with BackFlow Preventer- Potable Water
The Honeywell Thermal Expansion Absorber is a welded,
pressurized expansion tank with a butyl diaphragm to control
excess pressure in potable hot water systems. The Thermal
Expansion Tank controls pressure build-up in the system,
eliminates relief valve spillage, protects fixtures and extends water
heater life.
• Heavy duty butyl rubber diaphragm (FDA approved) isolates water
from air.
• Polypropylene liner, 100% non-metallic, non-corrosive water
reservoir.
• Prevents water hammer.
• Maintenance free.
• Protects water heater from harmful pressure cycling.
• Allows storage of expanded water with no increase in system
pressures.
• Prevents backflow when supply pressure falls below system
pressure.
Maximum Operating Temperature: 200 F (93 C)
Maximum Operating Pressure: 150 psi (1034 kPa)
Precharge: 40 psi
Materials: Shell: Steel
Connection: Brass
Liner: Polypylene
Diaphragm: Butyl
Height: 12 5/8 in. high (321 mm high)
Weight: 5 lb (2.27 kg)
Comments: Combination Kit
Product Number Connection Size (inch)
Connection
Type
Diameter Volume
Maximum
Acceptance
Volume
Includes(inch) (mm) (gal) (L) (gal) (L)
TX-12-2 Backflow Preventer Connection: 1 in.
Tank Connection: 3/4 in.
NPT Male 11 in. 279.4 mm 4.4 gal
16.7 L
3.2 gal
12.1 L
TX-12, BP701
TX-5-1 Backflow Preventer Connection: 3/4 in.
Tank Connection: 3/4 in.
NPT Male 8 in. 203.2 mm 2.0 gal
3.41 L
0.9 gal
3.41 L
TX-5, BP700
TX-5-2 Backflow Preventer Connection: 1 in.
Tank Connection: 3/4 in.
NPT Male 8 in. 203.2 mm 2.0 gal
7.6 L
0.9 gal
3.41 L
TX-5, BP701
TX12-1 Backflow Preventer Connection: 3/4 in.
Tank Connection: 3/4 in.
NPT Male 11 in. 279.4 mm 4.4 gal
16.7 L
3.2 gal
12.1 L
TX-12, BP700