|pipeline = valve|
|Domestic or industrial valves used to control the flow within pipelines|
|Used on these elements|
|Tools for this tag|
Valves are important devices to regulate flows, block liquids or ensure security in piping systems. There are many shapes and functions existing. We can find them in many places, to begin with households or heavy industries.
How to map
First of all, don't go inside private or restricted perimeters if you're not invited to do so please, some valves may not be safely accessible and you may expose yourself to multiple hazards.
Public information or aerial imagery will help to see outdoor pipeline facilities safely.
On every valve device found and on a man_made=pipeline way (not surrounding building, not fence), add a and put some tags described below like mandatory pipeline=valve.
Use location=* to give information about its position and valve=* to let us know about its mechanism.
High detailed information may be found on valves themselves. A complete datasheet as exposed beside gives many figures on the device capabilities and structure.
We basically need nominal diameter, valve mechanism but manufacturer=* and start_date=* may also be completed.
Nevertheless, you may not be able to took picture of those plates and as a reminder : don't go inside restricted perimeters to get the one you couldn't unless invited
|pipeline||valve||Valves are usually mapped as . This tags says it's a valve||mandatory|
|valve||<valve technology>||The design of the valve||recommended|
|location||<location>||The physical location of the valve, such as indoor.||recommended|
|diameter||<nominal diameter>||The nominal diameter of the valve in millimeters according to ISO 6708||optional|
|operator||<operator>||Name of the company that operates the valve.||optional|
|manufacturer||<Manufacturing company>||Name of the company that built the valve||optional|
|ref||<reference>||Abbreviation / number of the valve.||optional|
|turn_to_close||clockwise or anti_clockwise||Direction of rotation wheel to close the valve. This is common to handle and actuator||optional|
|handle||<handle model>||Does a handle is available on the valve?||optional|
|actuator||<actuator technology>||Mode of actuating the valve||optional|
|sensor:position||<position sensor>||Position sensor design used to get the valve current status. Not fluid pressure or chemical sensor which may be installed beside the valve||optional|
|remotely_controllable||Control mode||How the actuator is remotely activated to change the valve state.||optional|
|Europe||A domestic globe valve installed on heating radiators. The valve opens and close depending on the delta between fluid and ambient temperatures according to spring inside|
Water valves used in water networks
|The Netherlands||The valve prevent water to get out of a fire fighters riser pipe in a building. This is a typical globe valve|
|France, Toulouse||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.|
|Switzerland||Hydroelectric power plants usually got valves at top and bottom also of their penstocks carrying water down to turbines. 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||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|
|France||A fire hydrant with a globe valve to open or close the 3 outlets|
Oil & gas valves
|France||The valve is actually underground and ensure safety of the rising pipeline on the background. Only its head is visible from the ground surface.|
|the valve referred to in the example above|
Pneumatic and industrial devices
|Switzerland||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.|
|France||A comon globe valve which state is modified by a solenoid. A manual button allow local operator to unlock the valve in case of solenoid failure. It is provided by Bürkert. Datasheet|