Swagelok Valves

swagelok
Swagelok is a privately held international company, focusing on the manufacture and sale of gas and fluid systems components, such as compression fittings, valves, tubing, and gauges. It was founded in 1947 by Fred A. Lennon in Solon, Ohio, where its headquarters remain.
The Swagelok Company registered trademark brand name tube fitting providing UHV compatible connections on fractional inch tube sizes; uses a compressible ferrule; requires clean tube end only.

valves
(valve) a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
(valve) device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
(valve) control consisting of a mechanical device for controlling the flow of a fluid
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only