Api Plug Valve

plug valve
Plug valves are valves with cylindrical or conically-tapered "plugs" which can be rotated inside the valve body to control flow through the valve.
A valve with a revolving plug with an opening to permit passage of liquid when the opening is alined with the bore of the pipe.
Robinet a boisseau conique

api
Application programming interface
(apis) type genus of the Apidae: honeybees
An application programming interface (API) is an interface implemented by a software program that enables it to interact with other software. It facilitates interaction between different software programs similar to the way the user interface facilitates interaction between humans and computers.
The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. If its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks.
American Petroleum Institute