Which Is The Best Watt Hot Water Expansion Tank

WATTS WATER TECHNOLOGIES GIDDS-1030401 Potable Water Expansion Tank, Model #Plt-5, Stainless Steel Nipple, 2.1 Gallon, Lead Free

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: FTT12
• Tank Size: 4.8 Gallons
• Tank Weight: 10 Pounds
• Connection Size (National Pipe Thread): 3/4" Male Iron Pipe (MIP)
• Dimensions (LxWxH): 16" x 11" x 11"
• Acceptance Volume: 3.3 Gallons
• UPC Code: 80459513078

This expansion tank controls thermal expansion of water in open domestic hot water supply systems. It absorbs the increased volume of water generated by the hot water heating source. Its’ pre-pressurized steel tank uses an expansion membrane to prevent air/water contact for long system life.

Controls thermal expansion of water in open domestic hot water supply systems
Rugged butyl diaphragm
For use with all types of direct-fired water heaters
Keeps system pressure below relief setting of relief valve

Product Type: Expansion Tank
Finish Family: Blue
Material: Steel
Product Weight (lb.): 9.45

Product Height (in.): 11.2
Product Width (in.): 11.2
Product Depth (in.): 15.2

Product Description

WATTS WATER TECHNOLOGIES GIDDS-1030402 Watts Potable Water Expansion Tank, Model #Plt-12, Stainless Steel Nipple, 4.5 Gallon, Lead Free – 1030402

From the Manufacturer

Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply system. Series PLT tanks feature a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks. IAPMO listed and ANSI/NSF 61 certified. Maximum Pressure: 150psi (10 bar)

Product Description

Use the Watts series ETX water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting. Use in closed-loop, non potable water heating systems. Durable steel tank with 60 psi maximum working pressure.

From the Manufacturer

Use the Watts series ETX water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting. Use in closed-loop, non potable water heating systems. Durable steel tank with 60 psi maximum working pressure.

Product Description

Multi-purpose pressure Gauge. Helps you plan & design an efficient water-saving irrigation system. ¾” female hose thread adapter attaches directly to faucet or hose.

From the Manufacturer

Rain Bird Corporation is a privately held company founded in 1933 during the agricultural boom in California. We’re recognized as the #1 manufacturer and provider of irrigation products and services in the world. With sales offices around the globe; we offer over 4,000 water-saving irrigation products in more than 130 countries. Since the very beginning, Rain Bird has produced and offered the industry’s broadest range of high-quality irrigation products for: farms, golf courses, sports arenas, commercial developments and homes. Over the past 80-years Rain Bird has received more than 450 patents worldwide. Including the first one for irrigation in 1935 on our original impact-drive sprinkler (U.S. Patent #1,997,901) which revolutionized agricultural food-production and ushered in a new era in irrigation worldwide. In 1990 this original impact sprinkler was designated a historic landmark by the American Society of Agricultural Engineers. Our products cover all aspects of irrigation…timers/controllers, pop-up rotary sprinklers, pop-up spray head sprinklers, sprinkler nozzles, irrigation valves, Drip irrigation, drainage and much more. These products have been chosen and installed worldwide in the largest and most prestigious projects for residential, commercial, agricultural and golf course irrigation. Rain Bird is committed to The Intelligent Use of Water™ extending beyond products to education, training and services for the industry and the community. Our legacy is to design and manufacture only products of the highest value and quality. We’re grateful to have received numerous recognition awards from many of our valued partners. Rain Bird “The Intelligent Use of Water”

Watts PLT-20 Potable Water Expansion Tank (0067372)Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply system. Series PLT tanks feature a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks. IAPMO listed and ANSI/NSF 61 certified. Maximum Pressure: 150psi (10 bar)Watts PLT-20 Potable Water Expansion Tank (0067372) Features: Rugged flexible butyl diaphragm Field adjustable pre-charge In-line and free standing models Can be used with most standard hot water heaters and storage tanksWatts PLT-20 Potable Water Expansion Tank (0067372) Specifications: Max Pressure: 150 Max Temp F: 200 Tank Volume: 8.5 Gallons Tank Acceptance: 3.2 Gallons Air Pre-Charge: 20 Connection Size: male Diameter: 12.5inches Length: 19.2inches Weight: 15lbs* Image shown may vary by color, finish, or material* CA/VT Compliant

Conclusion

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