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
Status: approved
More details at taginfo
Tools for this tag

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.
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