Backflow preventer
2 definitions

Backflow preventer

Backflow preventer means a device or a method that prevents backflow in a water distribution system.

Backflow preventer

A device or means to prevent backflow into the potable water system.

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About this term

Backflow preventer has been defined 2 different ways in documents like RVCA Regulation Terminology, 2009 Uniform Plumbing Code.

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