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  2. Tube (fluid conveyance) - Wikipedia

    en.wikipedia.org/wiki/Tube_(fluid_conveyance)

    Both pipe and tube imply a level of rigidity and permanence, whereas a hose is usually portable and flexible. A tube and pipe may be specified by standard pipe size designations, e.g., nominal pipe size, or by nominal outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch ...

  3. Tube drawing - Wikipedia

    en.wikipedia.org/wiki/Tube_drawing

    The inner diameter is determined by the inner and outer diameter of the stock tube, the outer diameter of the final product, the length of the die landing, the amount of back tension, and the friction between the tube and the die. [3] This type of drawing operation is the most economical, especially on thick-walled tubes and tubes smaller than ...

  4. Orbital welding - Wikipedia

    en.wikipedia.org/wiki/Orbital_welding

    These include using the proper weld program in the orbital welding power supply or controller to match the settings to the pipe size, wall thickness, and tube material. Other key factors include the pipe preparation and face, the correct positioning of the weld head on the tube, and the amount of oxygen present during the welding process.

  5. Chelyabinsk Pipe Rolling Plant - Wikipedia

    en.wikipedia.org/wiki/Chelyabinsk_Pipe_Rolling_Plant

    It is involved in the production and distribution of steel pipes, with its main products being large diameter welded pipes, small diameter hot-worked seamless pipes (108–169 mm diameter) and cold-worked seamless pipes (89–426 mm diameter). [3] Chelyabinsk Pipe Rolling Plant accounts for 11% of the total Russian pipe production and more than ...

  6. Pipe (fluid conveyance) - Wikipedia

    en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

    For pipe sizes of NPS 14 inch (DN 350) and greater the NPS size is the actual diameter in inches and the DN size is equal to NPS times 25 (not 25.4) rounded to a convenient multiple of 50. For example, NPS 14 has an OD of 14 inches or 355.60 millimetres, and is equivalent to DN 350.

  7. Tube bending - Wikipedia

    en.wikipedia.org/wiki/Tube_bending

    An induction coil is placed around a small section of the pipe at the bend point. It is then induction heated to between 800 and 2,200 degrees Fahrenheit (430 and 1,200 C). While the pipe is hot, pressure is placed on the pipe to bend it. The pipe can then be quenched with either air or water spray or be cooled against ambient air.

  8. Coiled tubing - Wikipedia

    en.wikipedia.org/wiki/Coiled_tubing

    In the oil and gas industry, coiled tubing refers to a long metal pipe, normally 1 to 3.25 in (25 to 83 mm) in diameter which is supplied spooled on a large reel. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells. Coiled tubing is often used to carry out operations similar to wirelining ...

  9. Shape-memory coupling - Wikipedia

    en.wikipedia.org/wiki/Shape-memory_coupling

    The sleeve is cooled in liquid nitrogen then, in this low-temperature state, mechanically expanded with a mandrel to fit easily over the two pipe ends to be joined. After fitting, it is allowed to rewarm, when the memory effect causes the sleeve to shrink back to its original smaller size, creating a tight joint.

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