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  2. Hans Baumann (inventor) - Wikipedia

    en.wikipedia.org/wiki/Hans_Baumann_(inventor)

    Hans D. Baumann is a German-American inventor and engineer. He has registered over 200 patents and produced 105 publications. He has registered over 200 patents and produced 105 publications. He is known internationally as a valve specialist and is an expert on aerodynamic noise of gases and he is a frequent contributor to the NEWSMAX Magazine ...

  3. PB Swiss Tools - Wikipedia

    en.wikipedia.org/wiki/PB_Swiss_Tools

    The company was started in 1878 by Paul Baumann, from whose initials the company name was derived. In 1916 Paul Baumann established the family-owned company PB Baumann GmbH. In 1940 the company began producing tools, the first of which was a screwdriver. In 2011 medical devices were added to the portfolio.

  4. Control valve - Wikipedia

    en.wikipedia.org/wiki/Control_valve

    A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure , temperature , and liquid level.

  5. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Gate valve, mainly for on–off control, with low pressure drop; Globe valve, good for regulating flow. Uses a cylinder movement over a seat; Knife valve, similar to a gate valve, but usually more compact. Often used for slurries or powders on–off control; Needle valve for accurate flow control; Pinch valve, for slurry flow regulation and ...

  6. Flow control valve - Wikipedia

    en.wikipedia.org/wiki/Flow_control_valve

    The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]

  7. How do people catch bird flu? - AOL

    www.aol.com/news/people-catch-bird-flu-120042836...

    As bird flu infections rise in dairy cattle and chickens, human cases are ticking up too, leaving many people to wonder whether they might be at risk from this recently arrived virus.

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