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  2. HDPE pipe - Wikipedia

    en.wikipedia.org/wiki/HDPE_pipe

    HDPE pipe is a type of flexible plastic pipe used to transfer fluids and gases. It is often employed for replacing aging concrete or steel main pipelines . Constructed from the thermoplastic HDPE (high-density polyethylene ), it has low permeability and robust molecular bonding, making it suitable for high-pressure pipelines .

  3. Back-up ring - Wikipedia

    en.wikipedia.org/wiki/Back-up_ring

    The back-up ring is matched to the steel pipe flange specification and is placed behind the HDPE flange adapter - an end piece on the HDPE pipe that looks much like a steel flange at the end of the HDPE pipe. As the flange adapter does not have much structural strength, the back-up ring supports and compresses the HDPE flange adapter against ...

  4. Plastic pipework - Wikipedia

    en.wikipedia.org/wiki/Plastic_pipework

    Pipes, fittings, valves, and accessories make up a plastic pressure pipe system. The range of pipe diameters for each pipe system does vary. However, the size ranges from 12 to 400 mm (0.472 to 15.748 in) and 3 ⁄ 8 to 16 in (9.53 to 406.40 mm). Pipes are extruded and are generally available in: 3 m (9.84 ft), 4 m (13.12 ft), 5 m (16.40 ft ...

  5. Parflange F37 - Wikipedia

    en.wikipedia.org/wiki/Parflange_F37

    The Parflange F37 system is used to connect haydraulic tubes, pipes and components without welding.. Depending on pipe and flange size, the F37 system is approved for pressure ratings up to 420 bar (6000 psi, respectively 42 MPa).

  6. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a "3 ⁄ 4-inch female adapter NPT", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).

  7. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    Pipe-lines of high-density PE (high-density polyethylene) and low-density PE (low-density polyethylene) for drinking water supply; pipes, pipe connections and fittings for pipe-lines: Withdrawn: DIN EN 12201-1, DIN EN 12201-2, DIN EN 12201-3, DIN EN 12201-5: EN 12201-1, EN 12201-2, EN 12201-3, EN 12201-5: DIN 19704-1

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