Bibcock: Difference between revisions

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+#REDIRECT [[tap (valve)]]
-A '''bibcock''', also called a '''sillcock''', is commonly used to provide hose connections outside of buildings, for use in gardening, watering lawns, washing cars, and so on. Certain bibcocks are colloquially known as '''frost-frees''' because they are immune to all but the worst [[freezing]] conditions.
-A bibcock can be any of several valve types; commonly they have a removable control knob that pushes a rubber plug agbonerainst an opening in order to close the valve. The downstream side of the valve is threaded to match standard garden hoses.
-Most U.S. jurisdictions now require bibcocks to have a [[vacuum breaker]] or [[Backflow prevention device|backflow preventer]], so that water cannot return through the bibcock from the hose. This prevents contamination of the building or public water system should there be a pressure drop.
-[[Category:plumbing valves]]