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  2. Porosity sealing - Wikipedia

    en.wikipedia.org/wiki/Porosity_sealing

    Vacuum impregnation is a preferred OEM process that seals porosity and leak paths in metal castings, sintered metal parts and electrical castings that form during the casting or molding process. Vacuum impregnation stops casting porosity (a phenomenon that occurs in the die-cast manufacturing process and allows manufacturers to use parts that ...

  3. Cathodic protection - Wikipedia

    en.wikipedia.org/wiki/Cathodic_protection

    Common applications are: steel water or fuel pipelines and steel storage tanks such as home water heaters; steel pier piles; ship and boat hulls; offshore oil platforms and onshore oil well casings; offshore wind farm foundations and metal reinforcement bars in concrete buildings and structures.

  4. Cuyuna Iron Range Municipally-Owned Elevated Metal Water Tanks

    en.wikipedia.org/wiki/Cuyuna_Iron_Range...

    The Cuyuna Iron Range Municipally-Owned Elevated Metal Water Tanks are a group of five water towers within the Cuyuna Range in Crow Wing County, Minnesota.The water tanks, built between 1912 and 1918, were listed on the National Register of Historic Places because they represent the historical period of community planning, public works, and engineering that supported the development of the ...

  5. Sealant - Wikipedia

    en.wikipedia.org/wiki/Sealant

    Sealant is a substance used to block the passage of fluids through openings in materials, [1] a type of mechanical seal. In building construction sealant is sometimes synonymous with caulk (especially if acrylic latex or polyurethane based) [2] and also serve the purposes of blocking dust, sound and heat transmission. Sealants may be weak or ...

  6. 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 ...

  7. Gas holder - Wikipedia

    en.wikipedia.org/wiki/Gas_holder

    The water-sealed gas holder consists of a tank of water that rises and falls to take the gas. A watered gas holder consisted of two parts: a deep tank of water used to provide a seal, and a closed vessel (the lift) that rises above the water as the gas volume increased. [11]

  8. Seal (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Seal_(mechanical)

    A seal is a device or material that helps join systems, mechanisms or other materials together by preventing leakage (e.g. in a pumping system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent on adhesion in the case of sealants and compression in the case of gaskets .

  9. Waterproofing - Wikipedia

    en.wikipedia.org/wiki/Waterproofing

    In construction, a building or structure is waterproofed with the use of membranes and coatings to protect contents and structural integrity. The waterproofing of the building envelope in construction specifications is listed under 07 - Thermal and Moisture Protection within MasterFormat 2004, by the Construction Specifications Institute, and includes roofing and waterproofing materials.

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