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  2. Descaling agent - Wikipedia

    en.wikipedia.org/wiki/Descaling_agent

    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. Limescale is either white or brown in colour due to the presence of iron compounds. Glass surfaces may also exhibit scaling stains, as can many ceramic ...

  3. CISBOT - Wikipedia

    en.wikipedia.org/wiki/CISBOT

    Many cast-iron pipes installed over a century ago have joints of jute sealed with lead that deteriorate over time and are often the causes of cast-iron pipe failure. [2] Jute was an effective joint sealant when the pipes carried coal-based town gas, but natural gas, used since the 1950s in New York [3] and the 1970s in the UK, [citation needed] dries out the jute.

  4. Pickling (metal) - Wikipedia

    en.wikipedia.org/wiki/Pickling_(metal)

    Pickling is sometimes called acid cleaning if descaling is not needed. [2] [3] Many hot working processes and other processes that occur at high temperatures leave a discoloring oxide layer or scale on the surface. In order to remove the scale the workpiece is dipped into a vat of pickle liquor.

  5. Cast iron pipe - Wikipedia

    en.wikipedia.org/wiki/Cast_iron_pipe

    Cast iron pipe was superseded by ductile iron pipe, which is a direct development, with most existing manufacturing plants transitioning to the new material during the 1970s and 1980s. Ductile iron pipe is different than cast iron, because the introduction of magnesium during the casting process causes the graphite to form spheres (graphite ...

  6. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Limescale buildup in a PVC pipe. The presence of certain metal ions like calcium and magnesium, principally as bicarbonates, chlorides, and sulfates, in water causes a variety of problems. [1] Hard water leads to the buildup of limescale, which can foul plumbing, and promote galvanic corrosion. [2]

  7. American Cast Iron Pipe Company - Wikipedia

    en.wikipedia.org/wiki/American_Cast_Iron_Pipe...

    American Cast Iron Pipe Company is a manufacturer of ductile iron pipe, spiral-welded steel pipe, fire hydrants, and valves for the waterworks industry, and electric-resistance-welded steel pipe for the oil and natural gas industry.

  8. Centrifugal casting (industrial) - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_casting...

    Video of concrete pipe production. Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is typically used to cast materials such as metals, glass, and concrete. A high quality is attainable by control of metallurgy and crystal structure.

  9. Drain cleaner - Wikipedia

    en.wikipedia.org/wiki/Drain_cleaner

    A drain cleaner, also known as drain opener, refers to a person, device, or product used to unblock sewer pipes or clear clogged wastewater drains.This term typically applies to chemical, enzymatic, or mechanical tools such as commercial chemical cleaners, plumber’s snakes, drain augers, bio-enzyme solutions, or toilet plungers.

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