Tag:valve=butterfly

valve = butterfly
Description
Kind of quarter-turn valve design involving a rotating disk to regulate or ensure complete isolation of the flow of a fluid in a pipe.
Group: pipelines
Used on these elements
Useful combination
pipeline=valve actuator=* handle=* operator=* diameter=*
Status: approved
valve=butterfly $1% $1% $1% $1% More details at taginfo
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A Butterfly valve is a wide used pipeline valve design which involves a rotating disc to either regulate or complete stop the flow of a fluid in a pipeline.

Several sizes exists and they are most used in industrial processes.

You can complete their description in OSM with actuator=*, turn_to_close=* or handle=*. See examples.

Examples

Photo	Location	Tagging	Comments
	France	pipeline=valve valve=butterfly actuator=electric_motor handle=wheel turn_to_close=anti_clockwise (written on it) remotely_controllable=yes	This is a common valve used to regulate pressure in water mains on distribution networks. Switchable wheel allow technicians to open and close the valve so does the electric actuator on top of it.
	France	pipeline=valve valve=butterfly actuator=manual handle=lever turn_to_close=clockwise sensor:position=yes	Such a valve use a movable disk to let or prevent water from passing through it. A lever handle and a sensor allow technician to change the valve state.