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2. Gate valve - Wikipedia

   en.wikipedia.org/wiki/Gate_valve

   A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened.

3. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Slide gate valve: Ideal for handling dry bulk material in gravity flow, dilute phase, or dense phase pneumatic conveying applications. Similar to a sliding line blind valve, but the latter is for higher-pressure applications; Slide valve: used in early steam engines to control admission and emission of steam from the piston

4. Steam locomotive components - Wikipedia

   en.wikipedia.org/wiki/Steam_locomotive_components

   Controls the supply of steam to the cylinders. The valve gear, actuated by connection to the driving wheels, ensures that steam is delivered to the piston with precision. Types are slide valves, piston valves or poppet valves. [2] [3]: 62 Valve chest / Steam chest Valve chamber next to the cylinder (24) containing passageways to distribute ...

5. Gabe Newell - Wikipedia

   en.wikipedia.org/wiki/Gabe_Newell

   In 1996, he and Mike Harrington left Microsoft to found Valve and fund the development of their first game, Half-Life (1998). Harrington sold his stake in Valve to Newell and left in 2000. Newell led the development of Valve's digital distribution service, Steam, which launched in 2003 and controlled most of the market for downloaded PC games ...

6. Slide valve - Wikipedia

   en.wikipedia.org/wiki/Slide_valve

   Cylinder, with slide valve removed to show ports A double-acting slide valve cylinder. Steam enters via the steam port SP, and is admitted by the slide valve SV through the upper passage S to push down the piston P. At the same time, exhaust steam from below the piston passes back up the lower passage S, via the valve cavity, to exhaust E. As ...

7. Sentinel Waggon Works - Wikipedia

   en.wikipedia.org/wiki/Sentinel_Waggon_Works

   Alley & MacLellan was founded in 1875 and was based in Polmadie, Glasgow.This company continued in operation until the 1950s. Initially manufacturing valves and compressors for steam engines, and later whole steamships, Alley & MacLellan acquired Simpson and Bibby of Horsehay, Shropshire, manufacturer of steam-powered road vehicles, in 1903. [1]

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   Shut-off / On-off valve: These valves are either completely open or closed. Examples: Gate valve, ball valve, globe valve, angle valve, pinch valve, diaphragm valve; Check valve: Allows flow only in a single direction; Steam conditioning valve: Regulates the pressure and temperature of inlet media to required parameters at outlet.