Tag:valve=needle

valve = needle
Description
A valve allowing precise regulation of fluid flow involving a needle or a pointy moving part. Shouldn't be confused with globe valve
Group: pipelines
Used on these elements
Useful combination
pipeline=valve actuator=* handle=* operator=* diameter=*
Status: approved
valve=needle $1% $1% $1% $1% More details at taginfo
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A Needle valve involves a pointy moving part - the needle - and allows a precise regulation of fluid flows. Since the needle can be massive, it bares heavy pressure deltas and we can find them in industries, thermic motors and even hydroelectric turbines water injectors.

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

Examples

Photo	Location	Tagging	Comments
Needle valve	Switzerland	pipeline=valve valve=needle actuator=hydraulic_cylinder handle=no manufacturer=Voith location=indoor remotely_controllable=yes	A closed needle valve designed to regulate the intake of water toward a pelton power turbine. The opening of the needle allows the water to be directed to the turbine with the appropriate power.