Tag:valve=ball
| valve = ball |
| Description |
|---|
| Kind of quarter-turn valve design involving a rotating perforated ball to regulate or ensure complete isolation of high pressurised fluids in a pipeline. |
| Group: Pipelines |
| Used on these elements |
| Useful combination |
| Status: approved |
| Tools for this tag |
|
A Ball valve is designed for high pressure use cases. It involves a perforated quarter-turn ball to regulate or ensure complete isolation of fluids in a pipe.
We can find them in hydrocarbons transmission pipelines or hydroelectric power plants at the bottom of penstocks (while upstream valve is a valve=butterfly one).
You can complete their description in OSM with actuator=*, turn_to_close=* or handle=*. See examples below.
Examples
| Photo | Location | Tagging | Comments |
|---|---|---|---|
| Switzerland |
pipeline=valve
|
Hydroelectric power plants usually got valves at bottom of their penstocks carrying water down to turbines due to the heavy water pressure. Such a valve is mainly fully opened or fully closed depending of the plant operational status. It is located next to a pelton turbine at the end of the penstock. Here is how a ball valve closes : | |
| France |
pipeline=valve
|
The valve is actually underground and ensure safety of the rising pipeline on the background. Only its head is visible from the ground surface. |
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