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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.
    • X41HT7 High Pressure C&T to MPI™ Tube Stub
    Unit of Measure
    1 

    Item #

    Connection Type

    High Pressure Adapter Size

    MPI™ Tube Stub

    A

    T_Thread

    W HEX

    4-4 X41HT7-SS N/A Straight Thread to Tube Stub N/A 1/4 N/A 1/4 N/A 2.59 in N/A 9/16-18 N/A 5/8 in
    4-6 X41HT7-SS N/A Straight Thread to Tube Stub N/A 1/4 N/A 3/8 N/A 2.83 in N/A 9/16-18 N/A 5/8 in
    4-8 X41HT7-SS N/A Straight Thread to Tube Stub N/A 1/4 N/A 1/2 N/A 3.10 in N/A 9/16-18 N/A 5/8 in
    4-9 X41HT7-SS N/A Straight Thread to Tube Stub N/A 1/4 N/A 9/16 N/A 3.16 in N/A 9/16-18 N/A 5/8 in
    6-4 X41HT7-SS N/A Straight Thread to Tube Stub N/A 3/8 N/A 1/4 N/A 2.92 in N/A 3/4-16 N/A 13/16 in
    6-6 X41HT7-SS N/A Straight Thread to Tube Stub N/A 3/8 N/A 3/8 N/A 3.16 in N/A 3/4-16 N/A 13/16 in
    6-8 X41HT7-SS N/A Straight Thread to Tube Stub N/A 3/8 N/A 1/2 N/A 3.43 in N/A 3/4-16 N/A 13/16 in
    6-9 X41HT7-SS N/A Straight Thread to Tube Stub N/A 3/8 N/A 9/16 N/A 3.49 in N/A 3/4-16 N/A 13/16 in
    9-4 X41HT7-SS N/A Straight Thread to Tube Stub N/A 9/16 N/A 1/4 N/A 3.25 in N/A 1 1/8-12 N/A 1 13/16 in
    9-6 X41HT7-SS N/A Straight Thread to Tube Stub N/A 9/16 N/A 3/8 N/A 3.49 in N/A 1 1/8-12 N/A 1 13/16 in
    9-8 X41HT7-SS N/A Straight Thread to Tube Stub N/A 9/16 N/A 1/2 N/A 3.75 in N/A 1 1/8-12 N/A 1 13/16 in
    9-9 X41HT7-SS N/A Straight Thread to Tube Stub N/A 9/16 N/A 9/16 N/A 3.82 in N/A 1 1/8-12 N/A 1 13/16 in
    4-4 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 1/4 N/A 1/4 N/A 2.59 in N/A 9/16-18 N/A 5/8 in
    4-6 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 1/4 N/A 3/8 N/A 2.83 in N/A 9/16-18 N/A 5/8 in
    4-8 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 1/4 N/A 1/2 N/A 3.10 in N/A 9/16-18 N/A 5/8 in
    4-9 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 1/4 N/A 9/16 N/A 3.16 in N/A 9/16-18 N/A 5/8 in
    6-4 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 3/8 N/A 1/4 N/A 2.92 in N/A 3/4-16 N/A 13/16 in
    6-6 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 3/8 N/A 3/8 N/A 3.16 in N/A 3/4-16 N/A 13/16 in
    6-8 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 3/8 N/A 1/2 N/A 3.43 in N/A 3/4-16 N/A 13/16 in
    6-9 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 3/8 N/A 9/16 N/A 3.49 in N/A 3/4-16 N/A 13/16 in
    9-4 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 9/16 N/A 1/4 N/A 3.25 in N/A 1 1/8-12 N/A 1 13/16 in
    9-6 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 9/16 N/A 3/8 N/A 3.49 in N/A 1 1/8-12 N/A 1 13/16 in
    9-8 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 9/16 N/A 1/2 N/A 3.75 in N/A 1 1/8-12 N/A 1 13/16 in
    9-9 X41HT7-2507 N/A Straight Thread to Tube Stub N/A 9/16 N/A 9/16 N/A 3.82 in N/A 1 1/8-12 N/A 1 13/16 in
    Unit of Measure
    1