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What is thermal expansion and how does it relate to the installation of a backflow assembly?

April 26, 2017assembly backflow expansion installation relate Thermal

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What is thermal expansion and how does it relate to the installation of a backflow assembly?

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Thermal expansion is an increase in water volume due to the heating of cold water in a plumbing system. When water is heated in a building’s plumbing system with an installed backflow prevention assembly, an increase in pressure may be observed.