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  2. Pipe Cutting - Wikipedia

    en.wikipedia.org/wiki/Pipe_Cutting

    These comprise a clamshell or chain-mounted cutting head holding a tool steel and feed mechanism which advances the tool a set amount per revolution round the pipe. Tools may be styled to cut and/or prepare the bevel for welding in a single or multiple passes. High pressure abrasive water jets can be used for cold cutting. This technology is ...

  3. Weld neck flange - Wikipedia

    en.wikipedia.org/wiki/Weld_neck_flange

    A weld neck flange (also known as a high-hub flange [1] and tapered hub flange [2]) is a type of flange.There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant. [3]

  4. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Partially-welded steel pipe joint. The welding of metals differs from soldering and brazing in that the joint is made without adding a lower-melting-point material (e.g. solder); instead, the pipe or tubing material is partially melted, and the fitting and piping are directly fused. This generally requires piping and fitting to be the same (or ...

  5. List of welding codes - Wikipedia

    en.wikipedia.org/wiki/List_of_welding_codes

    Heating practices for pipe and tube AWS D10.11: Root pass welding for pipe AWS D10.12: Pipe welding (mild steel) AWS D10.13: Tube brazing (copper) AWS D10.18: Pipe welding (stainless steel) AWS D11.2: Welding (cast iron) AWS D14.1: Industrial mill crane welding AWS D14.3: Earthmoving & agricultural equipment welding AWS D14.4: Machinery joint ...

  6. Pipefitter - Wikipedia

    en.wikipedia.org/wiki/Pipefitter

    Using an always-open or always-closed valve called a tap, pipe layers connect them to a wider system and bury the pipes. whereas, Pipe fitters plan and test piping and tubing layouts; cut, bend or fabricate pipe or tubing segments; and join those segments by threading them, using lead joints, welding, brazing, cementing, or soldering them together.

  7. Marking out - Wikipedia

    en.wikipedia.org/wiki/Marking_out

    Marking out or layout means the process of transferring a design or pattern to a workpiece, as the first step in the manufacturing process. [1] It is performed in many industries or hobbies although in the repetition industries the machine's initial setup is designed to remove the need to mark out every individual piece.

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