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  2. Pipe insulation - Wikipedia

    en.wikipedia.org/wiki/Pipe_insulation

    Pipe insulation cannot prevent the freezing of standing water in pipework, but it can increase the time required for freezing to occur—thereby reducing the risk of the water in the pipes freezing. For this reason, it is recommended to insulate pipework at risk of freezing, and local water-supply regulations may require pipe insulation be ...

  3. Ground freezing - Wikipedia

    en.wikipedia.org/wiki/Ground_freezing

    Each white lump marks the top of a deep ground-freezing tap. Cross section of a ground freezing pipe as used in the Big Dig. Ground freezing is a construction technique used in circumstances where soil needs to be stabilized so it will not collapse next to excavations, or to prevent contaminants spilled into soil from being leached away. [1 ...

  4. Pipe bursting - Wikipedia

    en.wikipedia.org/wiki/Pipe_bursting

    Pipe bursting is a trenchless method of replacing buried pipelines (such as sewer, water, or natural gas pipes) without the need for a traditional construction trench. "Launching and receiving pits" replace the trench needed by conventional pipe-laying.

  5. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    PVC/CPVC – rigid plastic pipes similar to PVC drain pipes but with thicker walls to deal with municipal water pressure, introduced around 1970. PVC stands for polyvinyl chloride, and it has become a common replacement for metal piping. PVC should be used only for cold water, or for venting. CPVC can be used for hot and cold potable water supply.

  6. Repair kit - Wikipedia

    en.wikipedia.org/wiki/Repair_kit

    An electronics repair kit including different resistors. Professionals who repair and maintain electronic equipment may have a kit containing a soldering iron, wire, and components such as transistors and resistors. In medicine, a repair kit consisting of a plug and plastic mesh may be used during inguinal hernia surgery. A particular trade may ...

  7. Water tank - Wikipedia

    en.wikipedia.org/wiki/Water_tank

    An elevated water tank, also known as a water tower, will create a pressure at the ground-level outlet of 1 kPa per 10.2 centimetres (4.0 in) or 1 psi per 2.31 feet (0.70 m) of elevation. Thus a tank elevated to 20 metres creates about 200 kPa and a tank elevated to 70 feet creates about 30 psi of discharge pressure, sufficient for most ...

  8. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks. The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection , and pressurization of the vessel to the specified ...

  9. Underground storage tank - Wikipedia

    en.wikipedia.org/wiki/Underground_storage_tank

    "Underground storage tank" or "UST" means any one or combination of tanks including connected underground pipes that is used to contain regulated substances, and the volume of which including the volume of underground pipes is 10 percent or more beneath the surface of the ground. [1]

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