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2. Sleeve (construction) - Wikipedia

   en.wikipedia.org/wiki/Sleeve_(construction)

   A general practice is to size the sleeve two NPS (pipe sizes) up from the diameter of the penetrant. For example, a 4" pipe, with 1" of thermal insulation makes a 6" penetrant (1" pipe covering on each side of the pipe), plus two pipe sizes = an 8" sleeve, creating a 1" annulus.

3. Sleeve valve (water) - Wikipedia

   en.wikipedia.org/wiki/Sleeve_valve_(water)

   The flow then travels downstream through an exit spool on the downstream end. The angle pattern sleeve valve is installed at a 90° bend in place of an elbow. Angle pattern sleeve valves employ a similar design as the inline sleeve valve by creating an outer annular area to contain the media and a sleeve with tapered nozzles to pass the flow.

4. Heat-shrinkable sleeve - Wikipedia

   en.wikipedia.org/wiki/Heat-shrinkable_sleeve

   The first heat-shrinkable sleeves were introduced [when?] as polyethylene pipeline coatings started to replace bituminous or tape coatings in the oil and gas industry. At the time, the processing for polyethylene to make the sleeve backing was new technology and the adhesives used in sleeves were much the same as those used on pipeline coating.

5. Cathodic protection - Wikipedia

   en.wikipedia.org/wiki/Cathodic_protection

   Marine cathodic protection covers many areas, jetties, harbors, offshore structures. The variety of different types of structure leads to a variety of systems to provide protection. Galvanic anodes are favored, [28] but ICCP can also often be used. Because of the wide variety of structure geometry, composition, and architecture, specialized ...

6. Sliding sleeve - Wikipedia

   en.wikipedia.org/wiki/Sliding_sleeve

   A sliding sleeve is a standard component for the completion of an oil or gas well. Their main uses are to shut off flow from one or more reservoir zones or to regulate pressure between zones. There are two main categories of sliding sleeves: open/close and choking. Open/close sleeves are shifted between a full open position and a closed position.

7. Shielding gas - Wikipedia

   en.wikipedia.org/wiki/Shielding_gas

   Shielding gases fall into two categories—inert or semi-inert. Only two of the noble gases, helium and argon, are cost effective enough to be used in welding.These inert gases are used in gas tungsten arc welding, and also in gas metal arc welding for the welding of non-ferrous metals.