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  2. Water hammer - Wikipedia

    en.wikipedia.org/wiki/Water_hammer

    Expansion joints on a steam line that have been destroyed by steam hammer Steam hammer can occur in steam systems when some of the steam condenses into water in a horizontal section of the piping. The steam forcing the liquid water along the pipe forms a " slug " which impacts a valve of pipe fitting, creating a loud hammering noise and high ...

  3. Boiler explosion - Wikipedia

    en.wikipedia.org/wiki/Boiler_explosion

    Many plumbers, firefighters, and steamfitters are aware of this phenomenon, which is called "water hammer". A several-ounce "slug" of water passing through a steam line at high velocity and striking a 90-degree elbow can instantly fracture a fitting that is otherwise capable of handling several times the normal static pressure.

  4. 2007 New York City steam explosion - Wikipedia

    en.wikipedia.org/wiki/2007_New_York_City_steam...

    Steam hammer was suggested as a possible cause. It is a phenomenon that can occur when cold water comes in contact with a hot steam pipe, causing the steam inside to condense into liquid water, resulting in multi-phase flow which can damage piping.

  5. Steam explosion - Wikipedia

    en.wikipedia.org/wiki/Steam_explosion

    If a steam explosion occurs in a confined tank of water due to rapid heating of the water, the pressure wave and rapidly expanding steam can cause severe water hammer. This was the mechanism that, in Idaho, USA, in 1961, caused the SL-1 nuclear reactor vessel to jump over 9 feet (2.7 m) in the air when it was destroyed by a criticality accident ...

  6. Pipe support - Wikipedia

    en.wikipedia.org/wiki/Pipe_support

    It's also called Water hammer hydraulic shock. Steam hammer: Steam hammer, the pressure surge generated by transient flow of super-heated or saturated steam in a steam-line due to sudden stop valve closures is considered as an occasional load. Though the flow is transient, for the purpose of piping stress analysis, only the unbalanced force ...

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