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  2. Pipe recovery operations - Wikipedia

    en.wikipedia.org/wiki/Pipe_recovery_operations

    L sp = 735,294(X 2 − X 1)W dp ÷ F where L sp = depth of stuck point (ft), (X 2-X 1)= The stretch of the pipe from the reference point (in.), W dp = weight of drill pipe (lbs/ft), and F = the additional pull required (lbs.) It is important to note that the stretch test does not take into account drill collars, heavyweight drill pipe, and/or ...

  3. Cheater bar - Wikipedia

    en.wikipedia.org/wiki/Cheater_bar

    Hydraulic Chain Pipe Wrench – A hydraulic driven wrench which will safely remove threaded pipe from other threaded coupling, valve, etc. while the other devices listed here are for loosening (breaking) nuts. Torque values available vary with size but range up to approximately 75,000 FT-LB. [5]

  4. Structural pipe fitting - Wikipedia

    en.wikipedia.org/wiki/Structural_pipe_fitting

    Other advantages of using structural pipe fittings are easy installation and reconfigurable design. [1] Since there are no permanent welds in the structure, the set screws of the fittings can simply be loosened, [2] allowing them to be repositioned. The project can be disassembled and stored if needed, or even taken apart with fittings and pipe ...

  5. Pipe wrench - Wikipedia

    en.wikipedia.org/wiki/Pipe_wrench

    A pipe wrench is any of several types of wrench that are designed to turn threaded pipe and pipe fittings for assembly (tightening) or disassembly (loosening). The Stillson wrench, or Stillson-pattern wrench, is the usual form of pipe wrench, especially in the US. The Stillson name is that of the original patent holder, who licensed the design ...

  6. Compression fitting - Wikipedia

    en.wikipedia.org/wiki/Compression_fitting

    A compression fitting 15 mm isolating valve. A compression fitting is a fitting used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. . In instances where two pipes made of dissimilar materials are to be joined (most commonly PVC and copper), the fittings will be made of one or more compatible materials appropriate for the connect

  7. Nipple (plumbing) - Wikipedia

    en.wikipedia.org/wiki/Nipple_(plumbing)

    A chase nipple is a short pipe fitting, which creates a path for wires between two electrical boxes. A chase nipple has male threads on one end only. The other end is a hexagon. The chase nipple passes through the knockouts of two boxes, and is secured by an internally threaded ring called a lock nut. [1] [2]

  8. JIC fitting - Wikipedia

    en.wikipedia.org/wiki/JIC_fitting

    JIC fitting systems have three components that make a tubing assembly: fitting, flare nut, and sleeve. As with other flared connection systems, the seal is achieved through metal-to-metal contact between the finished surface of the fitting nose and the inside diameter of the flared tubing.

  9. Push-to-pull compression fittings - Wikipedia

    en.wikipedia.org/wiki/Push-to-pull_compression...

    There was a reusable fitting that could be unscrewed and a slimmer single-use fitting which could not. A new grab washer was required each time if a joint was reused. The fittings were designed for use with polybutylene pipe, while stainless steel pipe inserts were used for internal support. Hepworth was acquired by Wavin in 2005. [1]