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Nowadays, there are so many products of hot water tank expansion tank in the market and you are wondering to choose a best one. You have searched for hot water tank expansion tank in many merchants, compared about products prices & reviews before deciding to buy them.
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Here are some of best sellings hot water tank expansion tank which we would like to recommend with high customer review ratings to guide you on quality & popularity of each items.
20,296 Reviews Scanned
Eastman 60022 Thermal Expansion Tank, 2 Gallon, White
- CAPACITY: 2 gallons of water with a factory pre-charged pressure at 40 PSI
- DIMENSIONS:12.4-inch x 8.3-inch X 8.1-inch with 3/4-inch MIP connection
- MATERIAL: It has a high-quality butyl rubber diaphragm and grade 304 stainless steel fittings for long-lasting performance
- DESIGN: The tank is designed to prevent hot water from back flowing into the cold water line, or escaping through the pressure relief valve
- OPTIONS: This thermal water expansion tank is available in varying capacity of 2 gallons and 4.5 gallons of water
- choose as per requirement
The Eastman 60022 2-Gallon Thermal Expansion Tank provides a secure connection to water heaters that prevents dangerous build-ups of pressure. This water heater expansion tank stops hot water from backflowing into the cold water line and it also prevents hot water from escaping through the pressure relief valve and onto the floor. Constant fluctuations in water pressure can be dangerous and they can damage the water heater, properly installing a thermal expansion tank can solve all these issues.
The thermal expansion tank has a high-quality butyl rubber diaphragm and 304 stainless steel fittings for long-lasting performance. This product comes factory pre-charged at 40 psi. It complies with Lead-Free Law.
AMTROL ST-5 Thermal Expansion Tank
- Metal
- Made in USA
- Accepts expanded water caused by thermal expansion
- Returns water to the system when hot water is used
- Prevents the relief valve from going off
- Inline thermal expansion tank
- Accepts expanded water caused by thermal expansion
- Returns water to the system when hot water is used
- Prevents dripping faucets, intermittent toilet fill and pressure relief valve discharge
- Protects water heater, appliances and fixtures
Product Description
AMTROL ST-5 Thermal Expansion Tank
From the Manufacturer
Amtrol invented the thermal expansion tank to control pressure build-up in closed, hot water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion tank
Apollo Valves 69TANKTEE Tank Tee Expansion Tank Installation Device
Tank tee – expansion tank installation device allows quick and easy attachment of an expansion tank to the water heater with push-to-fit technology. No tools are needed except pipe thread sealing tape.
Flextrol FTT5 Thermal Expansion Tanks-for Hot Water Heaters, Carbon Shell, Stainless Steel 3/4 Inch MIP Connection, Butyl Diaphragm, 150 PSI, 210 Degrees Fahrenheit, Almond Color, 2.1 Gallons
- Thermal Expansion Tanks Are Used to Prevent Plumbing System And/or Water Heater Damage and Unnecessary Relief Valve Discharge Caused by Excessive Pressure from Thermal Expansion
- Prevent Dangerous Pressure Build Up & Protect Household Appliances and Fixtures
- External Baked Epoxy-Polyester Coating Provides a Durable Appliance Finish
- Exclusive Polypropylene Liner Eliminates Internal Corrosion
- Protect Safety Valves from Failing
- Save Energy and Water
- MIG Welding Eliminates Interior Rough Spots and Sharp Edges
- High Grade Steel Construction
- Made in Italy
- All Tanks Are NSF61 Certified
What is Thermal Expansion?
When heated, water expands. Under normal circumstances, a 40 Gallons hot water heater creates roughly an additional half gallon of water when heated (with no demand). In the past this expanded water would flow back into the public water supply. However, in many countries, where applicable by code, a backflow preventer is required, creating a closed system and a new problem as this extra half gallon of water is not compressible. When an expansion tank is installed the excess water enters the pre-pressurized tank. As the temperature and pressure reaches its maximum, the diaphragm flexes against an air cushion (air is compressible) to allow for increased water expansion. When the system is opened again or the water cools, the water leaves the tank and returns to the system.
Potential Problems Without an Expansion Tank
- Premature failure of the water heater may void the warranty of the water heater
- Dangerous high pressure
- leaky fittings and valves
- collapsed center flues
- flames out of combustion chamber
- Unnecessary Relief Valve Discharge
Installation Options for Thermal Expansion Tanks
- Install on the cold water side after the pressure reducing valve and between the backflow preventer and the water heater
- Do not install in an area where leakage could cause property damage
- The tank can be installed either vertically or horizontally. However, if the tank is to be installed horizontally, then it must be fully supported independent from the piping. Failure to do so will void the warranty.
Technical Features
- All tanks are NSF61 Certified
- MIG welding eliminates interior rough spots and sharp edges
- Each tank is factory leak tested
- 150 PSI Max pressure rating
- External baked epoxy-polyester coating provides a durable appliance finish
- Exclusive polypropylene liner eliminates internal corrosion
- Protected precharge valve eliminates potential leak path
Material Description
- Shell: Carbon Steel
- Connection: Stainless steel
- Diaphragm: Butyl
- Color: Almond
Operating Conditions
- Max. Operating Pressure: 150 PSI
- Operating Temperature: 210 Degrees Fahrenheit
- Factory Precharge: 40 PSI
- Warranty: 1 Year
Specifications
- Model Number: FTT5
- Tank Size: 2.1 Gallons
- Tank Weight: 6 Pounds
- Connection Size (National Pipe Thread): 3/4" Male Iron Pipe (MIP)
- Dimensions (LxWxH): 13" x 9" x 9"
- Acceptance Volume: 1.4 Gallons
- UPC Code: 80459513077
Similar items with 4 stars and above
WATTS WATER TECHNOLOGIES GIDDS-1030401 Potable Water Expansion Tank, Model #Plt-5, Stainless Steel Nipple, 2.1 Gallon, Lead Free
WATTS WATER TECHNOLOGIES GIDDS-1030401 Potable Water Expansion Tank, Model #Plt-5, Stainless Steel Nipple, 2.1 Gallon, Lead Free
Flextrol FTH30 Hydronic Expansion Tanks-for Hot Water Heaters, Carbon Steel Shell 3/4 Inch MIP Connection, SBR Synthetic Rubber, 60 PSI, 210 Degrees Fahrenheit, Gray Color, 4.8 Gallons
- Hydronic Expansion Tanks Are Diaphragm Type Tanks Designed to Keep System Pressures Below Relief Valve Settings
- Hydronic (Forced Hot Water) Expansion Tanks Absorb the Expansion of Water in Residential or Commercial Hydronic Heating and Cooling Systems
- Low Profile Tank Design with Full Membrane Depth Eliminates Stretching of Diaphragm, Providing Increased Life Cycle
- Hydronic Non-Potable Expansion Tank for Closed Hot Water Heating Systems, Boilers
- MIG Welding Eliminates Interior Rough Spots and Sharp Edges
- High Grade Steel Construction
- Made In Italy
- Certified Synthetic SBR Rubber Diaphragm
What is Hydronic Expansion?
Hydronic expansion tanks are diaphragm type tanks designed to keep system pressures below relief valve settings. Hydronic expansion tanks absorb the expansion of water in residential or commercial hydronic (forced hot water) heating and cooling systems. Without hydronic expansion tanks, the system will quickly over-pressurize resulting in added stress to the various system components. Hydronic expansion tanks protect safety valves from failing or wearing out quickly, avoids valve stem and ball seal leaks, prevents wasted BTU’s and vastly extends water heater life.
Technical Features
- Certified synthetic SBR rubber diaphragm
- MIG welding eliminates interior rough spots and sharp edges
- Each tank is factory leak tested to ensure tank integrity
- All diaphragms designed to maximize drawdown
- External baked epoxy-polyester coating provides a durable appliance finish
- Welded side outlet allows easy and quick installation
- Protected pre charge valve eliminates potential leak path
- Low profile tank design with full membrane depth eliminates stretching of diaphragm, providing increased life cycle
Additional Description
- Shell: Carbon Steel
- Connection: Carbon Steel
- Diaphragm: SBR Synthetic Rubber
- Color: Gray
Operating Conditions
- Max. Operating Pressure: 60 PSI
- Operating Temperature: 210 Degrees Fahrenheit
- Factory Precharge: 12 PSI
- Warranty: 1 Year
Specifications
- Model Number: FTH30
- Tank Size: 4.8 Gallons
- Tank Weight: 6.8 Pounds
- Connection Size (National Pipe Thread): 1/2" Male Iron Pipe (MIP)
- Dimensions (LxWxH): 12" x 12" x 16"
- Acceptance Volume: 3.0 Gallons
- UPC Code: 80459513075
Falcon Stainless EXPT-2 Thermal Potable Water Expansion Tank 2.1 Gal with Butyl Bladder/Polypropylene Liner and Stainless Steel 3/4-Inch Male Thread Connection for up to 50-Gallon Water Heaters
- Stainless Steel water connection to reduce corrosion.
- 16 gauge solid steel tank, finished with highest quality urothane paint.
- Steel clench ring regulates movement and prevents diaphragm from rubbing against tank wall.
- 100% Pressure tested and backed with a 5 year limited warranty.
- Falcon Stainless E.T. series thermal expansion tanks 100% effectively eliminate built up system pressure.
Falcon Stainless potable water expansion tanks are designed to maintain safe pressure in domestic water systems that utilize a back flow preventer or check valve.
Falcon Stainless tanks feature a 100% butyl diaphragm and plastic liner to separate the system water from the tanks air pre-charge. The system has a stainless steel connection to prevent corrosion making it even more reliable. And, the tanks are finished with appliance quality paint which helps prevent external corrosion.
When forced to choose between Quality and Cost, remember with Falcon you can have both! Peace of mind, full-port connections, completely listed, tested and approved and a 5 Year Warranty.
Similar items with 4 stars and above
Watts DET-5 2.1 G Potable Water Expansion Tank for 50-Gallon Water Heaters
- Protects the water heater from thermal expansion^Absorbs the increased volume of water created when water is heated^For water heaters up to 50-Gallon^Contains a durable membrane to prevent contact of water with air in the tank^Pre-pressurized steel tank at 20 psi
Amtrol ST-12 Thermal Expansion Tank
- Eliminates the waste of energy and water, thus saving money
- Prevents the relief valve from going off
- Protects the water heater and plumbing fixtures from premauture failure
- Eliminates the waste of energy and water, thus saving money
- Prevents a dangerous pressure build-up in the system
Amtrol ST-12 THERM-X-TROL Expansion Tank, 4.4 Gallon (141N43) What Is Thermal Expansion? With modern plumbing codes mandating backflow prevention, thermal expansion can cause pressure buildup in domestic water systems. When demand is put upon a potable water system, hot water is drawn from the water heater. Cold water from the supply line enters the water heater to replenish it. The colder water is heated to replace the hot water used. With the installation of a backflow preventer, check valve or pressure reducing valve on the supply line, the water heater and the system piping form a closed plumbing system under pressure. As the water is heated, thermal expansion occurs. Pressure increases until the relief valve opens and the expanded water “spills” from the water heater. This “spillage” results in wasted BTU’s and a potential safety hazard for the homeowner. Closed Potable Hot Water system without THERM-X-TROL Backflow preventer, pressure reducing valve or meter causes expanded (heated) water to build pressure causing the relief valve to open resulting in: Wasted BTU’s Shortened water heater life Wasted municipal water and sewer dollars Potential safety hazard for homeowner The Amtrol THERM-X-TROL ST-12 Expansion Tank is designed to eliminate this problem by providing control of maximum pressures at a level below the relief valve setting. It also provides an additional space in the system to accommodate the increased volume of water created by thermal expansion, returning it to the system when hot water delivery is demanded.
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