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  2. 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]

  3. Cameron International - Wikipedia

    en.wikipedia.org/wiki/Cameron_International

    Original Cameron Iron Works Building. On the National Register of Historic Places Park Towers South, which was the former headquarters of Cameron. Cameron International Corporation (formerly Cooper Cameron Corporation (CCC) and Cooper Oil Tool, Cameron Iron Works) though now operating under Schlumberger, is a global provider of pressure control, production, processing, and flow control systems ...

  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. Valve - Wikipedia

    en.wikipedia.org/wiki/Valve

    Schematic 3 way ball valve: L-shaped ball right, T-shaped left. Valves with three ports serve many different functions. A few of the possibilities are listed here. Three-way ball valves come with T- or L-shaped fluid passageways inside the rotor. The T valve might be used to permit connection of one inlet to either or both outlets or connection ...

  6. Blowout preventer - Wikipedia

    en.wikipedia.org/wiki/Blowout_preventer

    The ram BOP was invented by James Smither Abercrombie and Harry S. Cameron in 1922, and was brought to market in 1924 by Cameron Iron Works. [3] A ram-type BOP is similar in operation to a gate valve, but uses a pair of opposing steel plungers, rams. The rams extend toward the center of the wellbore to restrict flow or retract open in order to ...

  7. Ducati 450 Mark 3 - Wikipedia

    en.wikipedia.org/wiki/Ducati_450_Mark_3

    A higher performance version of the Mark 3 was offered, the Mark 3D, that was fitted with a different head that used desmodromic valves. [12] [13] (A system where the valves are positively closed by extra lobes on the cam and levers rather than by a more conventional springs). [14] The head was derived from that used on the 350 SCD racers.

  8. Schrader valve - Wikipedia

    en.wikipedia.org/wiki/Schrader_valve

    The original Schrader valve design was invented in 1891, and patented in the United States in 1893. [2] The Schrader valve consists of a valve stem into which a valve core is threaded. The valve core is a poppet valve assisted by a spring. A small rubber seal located on the core keeps the fluid from escaping through the threads.

  9. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.