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  2. Butterfly valve - Wikipedia

    en.wikipedia.org/wiki/Butterfly_valve

    A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc ...

  3. Water jet cutter - Wikipedia

    en.wikipedia.org/wiki/Water_jet_cutter

    A water jet cutter, also known as a water jet or waterjet, is an industrial tool capable of cutting a wide variety of materials using an extremely high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and an abrasive to cut hard materials such as ...

  4. Hamilton-class cutter - Wikipedia

    en.wikipedia.org/wiki/Hamilton-class_cutter

    The 378-foot WHEC cutter program which created the Hamilton class was initiated in the 1960s. The Hamilton -class cutters were intended to fulfill both the peacetime and wartime requirements of the Coast Guard. [13] Construction at Avondale Shipyards on the lead ship, the Hamilton, began in the 1960s and the cutter was commissioned on March 18 ...

  5. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...

  6. List of United States Coast Guard cutters - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    175' Keeper-class coastal buoy tender (WLM) USCGC Joshua Appleby (WLM-556), a 175' USCG coastal buoy tender. USCGC Ida Lewis (WLM-551) USCGC Katherine Walker (WLM-552) USCGC Abbie Burgess (WLM-553) USCGC Marcus Hanna (WLM-554) USCGC James Rankin (WLM-555) USCGC Joshua Appleby (WLM-556) USCGC Frank Drew (WLM-557)

  7. 'David's Sling' and 'Arrow' anti-missile systems: How Israel ...

    www.aol.com/davids-sling-arrow-anti-missile...

    The Arrow 3 system is believed to have a range of 1,500 miles and can reach an altitude of 100 miles.. The Arrow 2 is designed to explode near a missile to bring down an incoming missile, but the ...

  8. Annular cutter - Wikipedia

    en.wikipedia.org/wiki/Annular_cutter

    An annular cutter (also called a core drill, core cutter, broach cutter, trepanning drill, hole saw, or cup-type cutter) is a form of core drill used to create holes in metal. An annular cutter, named after the annulus shape , cuts only a groove at the periphery of the hole and leaves a solid core or slug at the center.

  9. Oregon replaces Texas at top of college football's NCAA Re ...

    www.aol.com/oregon-replaces-texas-top-college...

    Session Id: sj2qs8jp (Pls: ef7a0b89-20a5-46af-82f1-b070674e4114) Oregon and Georgia are up, Texas is down and Alabama is way, way down in the USA TODAY Sports NCAA Re-Rank 1-134. The Ducks are the ...

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