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Public-images-osm logo.svg couplings:diameters
The size of the connection fitting used to interface with the hydrant. Show/edit corresponding data item.
Group: properties
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
See also
Status: approvedPage for proposal

This is an optional tag in combination with emergency=fire_hydrant or emergency=fire_service_inlet to specify the diameter sizes of the couplings where hoses can be connected.

The number of these connections is specified by couplings=*.

How to tag

  • Each coupling diameter is delimited by a semicolon: #;#;... (numeric values)
  • Always specify the unit of measure, normally use mm. For inches use ".
  • In some countries characters A, B, C are used to specify the connector ( Austria and Germany)


Downtown Charlottesville fire hydrant.jpg

Taken this image and guessing diameters, this could result in: couplings:diameters=45 mm;45 mm;110 mm

See also