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Parker Hannifin, original Patent Holder (US 6851729 B2), for "Tube Fitting, Medium Pressure" developed the MPI Medium Pressure compression fitting connections to be secure and gas-tight while being made manually (wrench turns) or hydraulic set tool. This connection has application throughout industry, including off-shore oil and gas exploration platforms, research labs, and other facilities that require operating pressures to 15,000 psi (1035 bar).

MPI™ Fittings are ideally suited to handle liquids, gases, or chemicals and can be used on a wide variety of tubing materials including: Instrument Grade thick-walled annealed 316 SS, 1/8th Hard (cold drawn) 316 or 317 SS MPI tubing, and 2507 Super Duplex MPI tubing up to 1" OD. Every Parker MPI™ Fitting is supplied complete with both ferrules and compression gland nut, ready to install.

NOTE:
  • Add to the part number either -SS or -2507 depending on selected material. (Example: 16-16 FBMP7-SS)
  • Add “-Z6” to part number for part assembled with preset ferrules and nuts.
  • Dimensions in inches are for reference only, subject to change.
  • Pressure Rating of Fittings is controlled by tubing selected and choice of ASME Standard.
  • -XF Ferrules are required for 3/4" and 1" 316 SS or 2507 Super Duplex Tubing.
    • T7HG MPI™ Tube Stub to Female NPT Pipe
    Unit of Measure
    1 2 

    Item #

    Connection Type

    MPI™ Tube Stub

    Female NPT End

    A

    B

    NPT Thread

    W HEX

    4-2 T7HG-SS N/A Tube Stub to FNPT N/A 1/4 N/A 1/8 N/A 2.09 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    4-4 T7HG-SS N/A Tube Stub to FNPT N/A 1/4 N/A 1/4 N/A 2.28 in N/A .91 in N/A 1/4-18 N/A 1 in
    4-8 T7HG-SS N/A Tube Stub to FNPT N/A 1/4 N/A 1/2 N/A 2.64 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    6-2 T7HG-SS N/A Tube Stub to FNPT N/A 3/8 N/A 1/8 N/A 2.33 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    6-4 T7HG-SS N/A Tube Stub to FNPT N/A 3/8 N/A 1/4 N/A 2.52 in N/A .91 in N/A 1/4-18 N/A 1 in
    6-6 T7HG-SS N/A Tube Stub to FNPT N/A 3/8 N/A 3/8 N/A 2.55 in N/A .94 in N/A 3/8-18 N/A 1 1/8 in
    6-8 T7HG-SS N/A Tube Stub to FNPT N/A 3/8 N/A 1/2 N/A 2.88 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    8-2 T7HG-SS N/A Tube Stub to FNPT N/A 1/2 N/A 1/8 N/A 2.60 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    8-4 T7HG-SS N/A Tube Stub to FNPT N/A 1/2 N/A 1/4 N/A 2.79 in N/A .91 in N/A 1/4-18 N/A 1 in
    8-6 T7HG-SS N/A Tube Stub to FNPT N/A 1/2 N/A 3/8 N/A 2.82 in N/A .94 in N/A 3/8-18 N/A 1 1/8 in
    8-8 T7HG-SS N/A Tube Stub to FNPT N/A 1/2 N/A 1/2 N/A 3.14 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    9-4 T7HG-SS N/A Tube Stub to FNPT N/A 9/16 N/A 1/4 N/A 2.84 in N/A .91 in N/A 1/4-18 N/A 1 in
    9-6 T7HG-SS N/A Tube Stub to FNPT N/A 9/16 N/A 3/8 N/A 2.88 in N/A .94 in N/A 3/8-18 N/A 1 1/8 in
    9-8 T7HG-SS N/A Tube Stub to FNPT N/A 9/16 N/A 1/2 N/A 3.20 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    4-2 T7HG-2507 N/A Tube Stub to FNPT N/A 1/4 N/A 1/8 N/A 2.09 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    4-4 T7HG-2507 N/A Tube Stub to FNPT N/A 1/4 N/A 1/4 N/A 2.28 in N/A .91 in N/A 1/4-18 N/A 1 in
    4-8 T7HG-2507 N/A Tube Stub to FNPT N/A 1/4 N/A 1/2 N/A 2.64 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    6-2 T7HG-2507 N/A Tube Stub to FNPT N/A 3/8 N/A 1/8 N/A 2.33 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    6-4 T7HG-2507 N/A Tube Stub to FNPT N/A 3/8 N/A 1/4 N/A 2.52 in N/A .91 in N/A 1/4-18 N/A 1 in
    6-6 T7HG-2507 N/A Tube Stub to FNPT N/A 3/8 N/A 3/8 N/A 2.55 in N/A .94 in N/A 3/8-18 N/A 1 1/8 in
    6-8 T7HG-2507 N/A Tube Stub to FNPT N/A 3/8 N/A 1/2 N/A 2.88 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    8-2 T7HG-2507 N/A Tube Stub to FNPT N/A 1/2 N/A 1/8 N/A 2.60 in N/A .72 in N/A 1/8-27 N/A 13/16 in
    8-4 T7HG-2507 N/A Tube Stub to FNPT N/A 1/2 N/A 1/4 N/A 2.79 in N/A .91 in N/A 1/4-18 N/A 1 in
    8-6 T7HG-2507 N/A Tube Stub to FNPT N/A 1/2 N/A 3/8 N/A 2.82 in N/A .94 in N/A 3/8-18 N/A 1 1/8 in
    8-8 T7HG-2507 N/A Tube Stub to FNPT N/A 1/2 N/A 1/2 N/A 3.14 in N/A 1.27 in N/A 1/2-14 N/A 1 3/8 in
    Unit of Measure
    1 2