Watts Expansion Tanks

An expansion tank is used to maintain a balanced pressure through the water supply system by maintaining the pressure below the T & P relief valve setting. The Watts expansion tanks are made fro both drinking and non drinking water supplies. When water gets heated it expands and because water is not compressible the extra volume that the water created by the expansion has to go somewhere that is where the tank comes in. The warmer the water the more it expands,

Watts is the one of the best in the expansion tank field. Here is a complete list of tanks offered by Watts. If you come up on the time when you need to replace the existing tank, we will give you Watts model numbers to make your job easier. These are Watts ET Series Non Potable ( drinking water ) Water Expansion Tanks.

The Watts ET-30 is made for non potable water. The ET-30 has a tank volume of 4.7 gallons and a tank acceptance of 3.0 gallons and a maximum pressure psi . This tank costs approx $ 55

The Watts ET-60 is made for non potable water. The ET-60 has a tank volume of 6.6 gallons and a tank acceptance of 4.3 gallons and a maximum pressure of 60 psi. This tank cost approx $ 97.00

The Watts ET-90 is made for non potable water. The ET-90 has a tank volume of 13 gallons and a tank acceptance of 8 gallons and a maximum pressure of 60 psi. This tank costs approx $ 140.00

The Watts PLT-5 is for potable water that can hold up to 2.1 gallons and the PLT-12 Potable Water expansion tank can hold up to 4.5 gallons.The ? Watts Backflow Preventer is model number 009QT and it runs about $180. The air gap is Watts number 909 AGA and it costs around $ 10, the ? inch reducing valve is Watts part number T1156F ?" and it runs about $ 50 and the ? brass nipple does not have a Watts number so when you order you can just ask for it just like that. It costs about 1.25, you can get them in your local Home Depot as well.

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