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  2. Descaling agent - Wikipedia

    en.wikipedia.org/wiki/Descaling_agent

    Limescale build-up inside a pipe reduces both liquid flow and thermal conduction from the pipe, so will reduce thermal efficiency when used as a heat exchanger.. A descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles.

  3. Tube cleaning - Wikipedia

    en.wikipedia.org/wiki/Tube_cleaning

    In the on-line process, the cleaning body moves through the tubes with the conveying medium and cleans them by means of its oversize compared to the tube diameter. In the range of diameters of up to 50 mm these cleaning bodies consist of sponge rubber, in larger diameters up to the size of oil pipelines it is a matter of scrapers or so-called pigs.

  4. Parts cleaning - Wikipedia

    en.wikipedia.org/wiki/Parts_cleaning

    Cleaning methods encompass solvent cleaning, hot alkaline detergent cleaning, electro-cleaning, and acid etch. In industrial settings, the water-break test is a common practice to assess machinery cleanliness. This test involves thoroughly rinsing and vertically holding the surface.

  5. Materials for use in vacuum - Wikipedia

    en.wikipedia.org/wiki/Materials_for_use_in_vacuum

    Aluminium bronze is a material that looks and machines similar to brass. It is not susceptible to galling , which makes it suitable for sliding fits against stainless steel. Nickel is widely used in vacuum technology, e.g. as mechanical parts in vacuum tubes .

  6. Selective leaching - Wikipedia

    en.wikipedia.org/wiki/Selective_leaching

    To combat this, arsenic or tin can be added to brass, or gunmetal can be used instead. Dezincification resistant brass (DZR), also known as Brass C352 is an alloy used to make pipe fittings for use with potable water. Plumbing fittings that are resistant to dezincification are appropriately marked, with the letters "CR" (Corrosion Resistant) or ...

  7. Surface condenser - Wikipedia

    en.wikipedia.org/wiki/Surface_condenser

    The waterbox is usually provided with man holes on hinged covers to allow inspection and cleaning. These waterboxes on inlet side will also have flanged connections for cooling water inlet butterfly valves, small vent pipe with hand valve for air venting at higher level, and hand-operated drain valve at

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