A valve is a device that regulates the flow of fluids.

Valve may also refer to:

Mechanical and electrical

Brass instrument valve, for valves used in brass instruments Rotary valve, a valve using an internal rotor to select flow paths Piston valve, a valve using a piston to control fluid flow Piston valve (steam engine), a piston valve as used in steam engines Poppet valve, a valve consisting of a hole and a tapered plug on the end of a shaft, typically used in instruments, engines, etc. Vacuum tube, also called "thermionic valve", an electronic component Mercury-arc valve, a type of electrical rectifier tube

Biology Heart valve, valves in the heart that maintain the unidirectional flow of blood Vein valve, valves in veins and other fluid cords in body Lymphatic valve, valves in lymphatic vessels Valve (mollusc), the shell of a mollusc Valve (diatoms), the siliceous unit that makes up one half of a diatom cell Valve (botany), part produced by the splitting of a capsule or pod when ripe Valve, a paired clasping process on the genitalia of male moths

Companies Valve Corporation (also known as Valve Software or Valve), a video game developer and digital distribution company Valve Records, an Australian record label Valve Amplification Company, a U.S. high end audio electronics company

People Alli Paasikivi, née Valve (1879–1960), First Lady of Finland Valve (given name), an Estonian feminine given name Väinö Valve (1895–1995), Finnish general

Other uses Valve hall, a building which contains the valves of the static inverters of a high-voltage direct current plant The Valves, UK band

See also

Valve amplifier (tube amplifier) Valve audio amplifier Valve RF amplifier Valve gear Valve train Valveless Valvetronic