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  2. Testing and inspection of diving cylinders - Wikipedia

    en.wikipedia.org/wiki/Testing_and_inspection_of...

    Water jacket hydrostatic test diagram Condemned diving cylinders set aside for metal recycling. Transportable pressure vessels for high-pressure gases are routinely inspected and tested as part of the manufacturing process.

  3. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    A hydrostatic test is a way in which pressure vessels such as pipelines, ... Water jacket test. ... (with a visual inspection annually) ...

  4. Diving cylinder - Wikipedia

    en.wikipedia.org/wiki/Diving_cylinder

    Water jacket hydrostatic test diagram. A hydrostatic test involves pressurising the cylinder to its test pressure (usually 5/3 or 3/2 of the working pressure) and measuring its volume before and after the test. A permanent increase in volume above the tolerated level means the cylinder fails the test and must be permanently removed from service ...

  5. Water jacket - Wikipedia

    en.wikipedia.org/wiki/Water_jacket

    Water jackets were used to cool the barrels of machine guns until several years after the First World War, but modern machine guns are air-cooled to conserve weight and hence increase portability. In a reciprocating piston internal combustion engine , the water jacket is a series of holes either cast or bored through the main engine block and ...

  6. Hydrolock - Wikipedia

    en.wikipedia.org/wiki/Hydrolock

    Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it caused by a liquid entering the device.

  7. Vessel safety survey - Wikipedia

    en.wikipedia.org/wiki/Vessel_safety_survey

    The annual inspection can be done during a three months period before or the three months after the annual date. There should be two docking surveys (DS) during the five years of certificate validity but it is possible to substitute one by an in-water survey which includes a diving inspection. The intermediate survey (ITSS) is done between the ...

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  9. Hydrostatics - Wikipedia

    en.wikipedia.org/wiki/Hydrostatics

    is the hydrostatic pressure field (Pa) along x and y at the zero reference point; For water and other liquids, this integral can be simplified significantly for many practical applications, based on the following two assumptions.