Tag:valve=needle

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Public-images-osm logo.svg 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. Show/edit corresponding data item.
Group: pipelines
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: approvedPage for proposal

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.