Encyclopedia > Valve

  Article Content

Valve

A valve is a mechanical device that regulates the flow of fluids (either gases and liquids) by opening, closing, or partially obstructing various passageways.

A valve doesn't necessarily mean a man-made device; there are several valves inside the human body, for instance in the heart or in veins.

Because their effect on a flow of electrons is analogous to the fluid devices, the electronic devices known in the US as "vacuum tubes" are called "thermionic valves" in Britain.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
List of Finnish municipalities by population

... 6005 Loimaan_kunta/Loimaa_kommun[?], 5991 Nakkila[?], 5964 Nummi-Pusula[?], 5886 Kittilš[?], 5797 Eurajoki/EuraŚminne[?], 5760 Joroinen/Jorois[?], ...