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  2. Four-way valve - Wikipedia

    en.wikipedia.org/wiki/Four-way_valve

    The four-way valve or four-way cock is a fluid control valve whose body has four ports equally spaced round the valve chamber and the plug has two passages to connect adjacent ports. The plug may be cylindrical or tapered, or a ball.

  3. Ball valve - Wikipedia

    en.wikipedia.org/wiki/Ball_valve

    A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole through the middle of the ball is in line with the flow inlet, and closed when it is pivoted 90 degrees by the valve handle, blocking the flow. [1]

  4. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    The inside of an extremely large butterfly valve Duplex ball valve Three check valves in corrosion-resistant Hastelloy Stainless steel gate valve. Valves can be categorized into the following types, based on their operating mechanism: Ball valve, for on–off control without pressure drop. Ideal for quick shut-off, since a 90° turn completely ...

  5. Flow control valve - Wikipedia

    en.wikipedia.org/wiki/Flow_control_valve

    Pneumatically-actuated globe valves and diaphragm valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball and butterfly valves are also used. Control valves can also work with hydraulic actuators (also known as hydraulic pilots). These types of valves are also known as automatic ...

  6. Notre Dame and Indiana get 1st taste of playoff football ...

    www.aol.com/notre-dame-indiana-1st-taste...

    Indiana, meanwhile, leads the nation in fewest yards rushing per game allowed (70.8) and the 2.46 yards per carry allowed is second best in FBS. Even in their loss, Ohio State rushed 29 times for ...

  7. Donald Trump loves to use the stock market as a scoreboard ...

    www.aol.com/donald-trump-loves-stock-market...

    Donald Trump famously helped measure the success of his time in office using the stock market.. But in the first year of his second term, Trump may have little control over what's expected to be ...