Plumbing · S-M9V69

Diaphragm Expansion Tank Detail

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An ASME potable water hydropneumatic expansion tank with a butyl rubber diaphragm or bladder is connected to a tower pressurized water main. The tank is rated for 150 psi pressure and a temperature of 240 degrees Fahrenheit, with a nominal size of 68 gallons and a maximum acceptance of 34 gallons. The piping assembly includes a 1-inch connection with typical ball valves, typical unions, a pressure gage, and a 1-inch air charging fitting. A normally open ball valve is installed on the tower pressurized water main.

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