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Parker CPI™/A-LOK® Instrumentation Tube Fittings are designed as leak-free connections for process, power and instrumentation applications. The CPI tube fittings utilize a single ferrule for easy make-up and excellent performance in vibration applications. The “spring loaded” effect of the single ferrule creates a constant tension between the fitting body and fitting nut. The A-LOK two ferrule compression tube fittings are designed to provide reliable leak-free connections for applications that specify a two ferrule system. These single and two ferrule fitting designs are manufactured to the highest quality standards and are available in a broad range of sizes, materials and configurations.

NOTE:
  • Dimensions for reference only, subject to change.
  • A and C dimensions are typical finger-tight.
  • See Catalog 4280, Welded Fittings, for additional sizes.
  • Adapter fitting for connection of compression fittings to welded systems.
    • Socket Weld Connector for fractional tube
    Unit of Measure
    1 

    Item #

    Connection Type

    A

    C

    P

    X

    E Bore

    W HEX

    2-2 ZHBW N/A CPI™ x Socket Weld N/A 1.16 in N/A .60 in N/A .16 in N/A .38 in N/A .09 in N/A 7/16 in
    3-3 ZHBW N/A CPI™ x Socket Weld N/A 1.24 in N/A .64 in N/A .20 in N/A .39 in N/A .14 in N/A 1/2 in
    4-4 ZHBW N/A CPI™ x Socket Weld N/A 1.36 in N/A .70 in N/A .25 in N/A .50 in N/A .19 in N/A 9/16 in
    6-6 ZHBW N/A CPI™ x Socket Weld N/A 1.53 in N/A .76 in N/A .34 in N/A .63 in N/A .31 in N/A 11/16 in
    8-8 ZHBW N/A CPI™ x Socket Weld N/A 1.74 in N/A .87 in N/A .41 in N/A .78 in N/A .44 in N/A 13/16 in
    10-10 ZHBW N/A CPI™ x Socket Weld N/A 1.86 in N/A .87 in N/A .47 in N/A .94 in N/A .50 in N/A 1 in
    12-12 ZHBW N/A CPI™ x Socket Weld N/A 1.92 in N/A .87 in N/A .50 in N/A 1.09 in N/A .66 in N/A 1 1/8 in
    16-16 ZHBW N/A CPI™ x Socket Weld N/A 2.31 in N/A 1.05 in N/A .56 in N/A 1.44 in N/A .91 in N/A 1 5/8 in
    2-2 ZHLW N/A A-LOK® x Socket Weld N/A 1.16 in N/A .60 in N/A .16 in N/A .38 in N/A .09 in N/A 7/16 in
    3-3 ZHLW N/A A-LOK® x Socket Weld N/A 1.24 in N/A .64 in N/A .20 in N/A .39 in N/A .14 in N/A 1/2 in
    4-4 ZHLW N/A A-LOK® x Socket Weld N/A 1.36 in N/A .70 in N/A .25 in N/A .50 in N/A .19 in N/A 9/16 in
    6-6 ZHLW N/A A-LOK® x Socket Weld N/A 1.53 in N/A .76 in N/A .34 in N/A .63 in N/A .31 in N/A 11/16 in
    8-8 ZHLW N/A A-LOK® x Socket Weld N/A 1.74 in N/A .87 in N/A .41 in N/A .78 in N/A .44 in N/A 13/16 in
    10-10 ZHLW N/A A-LOK® x Socket Weld N/A 1.86 in N/A .87 in N/A .47 in N/A .94 in N/A .50 in N/A 1 in
    12-12 ZHLW N/A A-LOK® x Socket Weld N/A 1.92 in N/A .87 in N/A .50 in N/A 1.09 in N/A .66 in N/A 1 1/8 in
    16-16 ZHLW N/A A-LOK® x Socket Weld N/A 2.31 in N/A 1.05 in N/A .56 in N/A 1.44 in N/A .91 in N/A 1 5/8 in
    Unit of Measure
    1